Production of the first Iranian roll bolt adhesive with high mechanical properties

Production of the first Iranian roll bolt adhesive with high mechanical properties

Bolt adhesive is one of the most widely used and sensitive products in the field of construction industry, which is most used for planting metal bolt rolls in the concrete body of deck roofs or shear walls. This product increases the strength and durability of the bolt in the concrete body by creating a permanent connection between metal and concrete and increases the safety of the work. This product with internal formulation and laboratory test results and existing standards, is a good alternative to foreign samples.

Nationalization of coiled tubes used in oil exploration

Nationalization of coiled tubes used in oil exploration

Pooyesh Composite Yekta Company, a manufacturer of fiberglass pipes, fittings and tanks, has succeeded in producing core pipes in accordance with the latest international standards, which is a big step towards independence and promotion of the domestic industry with its high quality and local advantage.

Megatite C

Megatite C

Two-Part Transparent Epoxy Adhesive for adhering various surfaces
Download user manualdownload datasheet

Megatite C

Megatite C is a two-part transparent non sag, consistent adhesive up to 35°C with void filling properties.

Concrete surfaces

Metals surfaces

Wooden surfaces

Polymer surfaces

Stone installation

Installation of marble, granite, large ceramic tiles on walls and fences in and outdoors

Connecting heterogeneous surfaces

Stone-concrete, metal-wood, metal-concrete, metal-stone

Repairs

marble, granite and stones

Sealing

stone surfaces, Minerals, concrete, metal and fiberglass products

Features

  • Simple 1:3 mix ratio
  • Semi-solid, flexible
  • Consistent in vertical surfaces
  • Completely transparent
  • Maintains adhesion strength after long periods of water immersion after being fully cured.
  • Excellent chemical resistance
  • No color seepage suitable for marble and other white and light stones
  • Resistant to vibration and shocks.

Proper installation surfaces

Concrete

Shear walls

Brick

Wooden plates

Reinforced concrete

Metal

notes:

1- In relation to installation on iron surfaces, before installation, the metal surface should be cleaned of any contamination such as dirt and rust and… by the masonry process

2- In connection with installation on cement surfaces, the bottom cement layer:

  • Has a minimum compressive strength of 24 MPa.
  • Must be at least 28 days old before installation.

Datasheet

Mix ratio 3:1 by volume
mixing Until a homogenous mixture is obtained
Gel time for 100g in 77°F (25°C) 20 minutes
Minimum working temperature 50°F (10°C)
Initial cure in 77°F (25°C) 12 hours
Full cure time 4 days in 77°F (25°C)
temperature Gel time Minimum time for initial cure Minimum time to achieve optimal properties
10 80 min 48 h 8 days
15 40 min 24 h 6 days
25 20 min 10-15 h 4 days
40  15 min 6 h 2 days
Maximum operation temperature 158°F (70°C)
Density 1.1g/cm3
Tensile strength 55MPa
Shear strength 12MPa
Compressive strength 60MPa
Flexural strength 25MPa
Linear expansion coefficient 60*10-6mm/mm/°C

 

Curing condition: 7 days in room temperature
If ingredients were mixed correctly, no spotting on light and white marble stones and ceramics would occur.

Surface Preparation

Resin and hardener must be kept in 77°F (25°C) for 24 hours before application. All surfaces must be clear of any grease, dust, hardeners, and other contaminants and should also be clean and dry before applying epoxy adhesives. The surface of any product to be adhered must be prepared to access the pure hard surface underneath which is to be covered with the adhesive completely. The surface must first be sanded with an abrasive roller with a diamond blade, the resulting dust should be removed with a fiber brush. After that, the remaining dust can be removed from the surface with a damp sponge to ensure complete contact. Finally, dry the surface completely with a piece of cloth, then start using the adhesive.

Directions for Use

The strength and durability of a bonded joint are dependent on proper treatment of the surfaces to be bonded. At the very least, joint surfaces should be cleaned with a good degreasing agent such as acetone or other proprietary degreasing agents in order to remove all traces of grease, dirt and oil.
Gasoline, paint thinners or alcohol should never be used for this purpose.
The strongest and most durable joints are obtained by either mechanically abrading or chemically pickling the degreased surfaces.

Mixing

Resin and hardener must be mixed thoroughly in room temperature in 3:1 mix ratio (3 parts resin, one part hardener) for 2 minutes using a spatula until a homogenous mix is obtained.

Note

It is important to use the exact ration and not mix approximate amounts of the components. Different ratios may result in different properties such as failing to cure or color change in time. After applying adhesive, tools and surfaces can be cleaned with warm water. Adding soap would easy the process.

Packaging

Each product comes with 2 spatulas and elastic gloves in the following sizes:

 20 kg
10 kg
1080 g

Shelf life

Minimum storage life for unopened containers stored in a dry, cold area at less than 95°F (35°C), is 2 years with no change in adhesion or properties.

Precautionary Information

  • Keep out of reach of children.
  • Megatite adhesives are non-toxic and have low odor.
  • In cold temperatures, avoid crossing over the work site until the adhesive is completely hardened.
  • Before it is cured, resin is harmful to eyes and skin. Prolonged contact with it must be avoided. In case of contact, rinse immediately with plenty of water. Use suitable gloves when applying.

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Steps of Repairing in Service Pipe Leaks Using Epoxy Adhesives

Steps of Repairing in Service Pipe Leaks Using Epoxy Adhesives

How to repair in service pipe leakage with epoxy adhesives?

One of the biggest challenges in various industries is repairing leaks in online pipes and service lines. Since it is not possible to cut off the flow of these lines, leakage can be a very difficult and costly task. Epoxy adhesives, being a very strong adhesive, is a new and cost-effective method for repairing pipe leaks.

Video guide for repairing leaking pipes in service

Advantages of using epoxy adhesives for repairing in service pipe leaks

Natural factors like humidity, rain, and temperature changes can cause long-term damage to industrial facilities. Including liquid transmission lines in advanced industries such as oil, gas, petrochemical, water and sewage, which in case of leakage can be costly and full of risks.

Nowadays, epoxy adhesives are one of the best adhesive materials for repairing industrial equipment. In addition to repair, epoxy adhesive can protect industrial equipment in the long run due to its chemical and physical properties. For its extremely strong and excellent resistance to geological and environmental factors.

Epoxy adhesive is a safe and reliable choice for anyone working in the above mentioned industries or anyone planning to repair industrial equipment.

Megatite industrial adhesives for repairing leaking pipes in service

Before getting into the steps of repairing a pipe in service, it is better to get acquainted with the adhesives used for this purpose.

In general, we are faced with two modes of pipe repair;

    1. The pipe is in service
    2. The pipe or line is not in service

    In case the pipe is in service, in other words, if fluid is running inside a pipe or flow line, we would need two types of adhesive:

    1. Megatite UN Epoxy Adhesive (Instant Adhesive)

    For immediate and emergency cut-off of current in leaking pipes.

    1. Megatite PM epoxy adhesive (industrial adhesive)

    For permanent repair of pipe leaks.

    In order for us to repair a leak in an in-service pipe, we first need to instantly cut off the leakage current. Because without this, it will not be possible to repair. Therefore, to stop the leakage current we use Megatite UN adhesive, which is an instant adhesive typical for emergency repairs and hardens at 25°C within 10 minutes. Once the leaking current has stopped and the leak site has dried, we can easily use PM Megatite adhesive and repair the leak permanently.

    If the pipe or line is not in service, i.e. there is no current flowing in the pipe, the repair operation will be much easier. In this case, we are not facing an immediate situation. So you will not need the instant adhesive.

  1. The applications of Megatite epoxy adhesive in different industries

    • Crude oil transfer.
    • Transfer of corrosive liquids.
    • Transfer of drinking water.
    • Fire water lines.
    • Seawater cooling systems.
    • Industrial effluent.
    • Marine and offshore platforms

It is also used for taper/taper connections in fiberglass pipes and fittings in different transmission lines.

Key features in Megatite PM epoxy adhesive

  • Thermal resistance up to 212°F (100°C).
  • High chemical resistance towards most chemical materials.
  • Texotropic properties.
  • Room temperature curing.
  • Increasing properties after post curing.
  • Suitable for metals and fiberglass components i.e., GRVE, GRP, GRE.

Tools needed to repair pipes and lines in service

Required tools:

  • PM Megatite epoxy adhesive
  • Instant Megatite epoxy adhesive UN
  • Flat metal file
  • Miller
  • Sheet metal (15*15 cm)
  • 3 cm spatula
  • 15 cm spatula
  • Fiberglass band

Steps of repairing in-service pipe leak with epoxy adhesive

  1. First, use a flat metal file to flatten the area around the pipe.
  2. Make a sheet metal (15*15 cm) (this size can vary depending on the size of the leak) and bend it according to the diameter of the pipe. So that when you place the sheet on the pipe, the whole sheet sits on the surface of the pipe.
  3. Next, grind the inner surface of the sheet metal with a milling machine.
  4. Store Megatite epoxy adhesives at 25°C (room temperature) for 24 hours before use.
  5. Combine Megatite UN epoxy adhesive ingredients in a 1: 1 ratio (one part resin and one part hardener). This adhesive immediately reaches its initial cure in 5-6 minutes. Therefore, you should work fast; Otherwise, the adhesive will dry before use.
  6. apply the composite adhesive on the back of the sheet metal without wasting time. Then dry the leak with a napkin and quickly place the sheet on it and press firmly with both hands to stop the leak. Wait 5-6 minutes for the adhesive to dry.
  7. After the adhesive’s instant hardening, release your hands and remove the excess glue with a spatula.
  8. Using a milling machine, grind the leak area around the pipe and the surface on the sheet metal.
  9. Rinse the rubbed area with acetone. Then, with a distance of 25 cm from each ends of the leak, close the pipe with paper tape. So that the leak is in the middle of them.
  10. Cut a fiberglass band (20*100cm). The length and width of the fiberglass band can vary depending on the diameter of the pipe. What is important is that the width of the fiberglass band should be 5-6 cm wider than the width of the sheet metal, and its length should be twice the diameter of the pipe so that it can wrap around the pipe twice.
  11. Combine Megatite PM epoxy adhesive in a ratio of 1 to 4 (one part hardener and four parts resin).
  12. Apply the mixture of epoxy adhesive on the surface of the pipe with a 15 cm spatula. Cover a 2-3 mm thick layer of adhesive on the surface of the pipe. Note that the adhesive mortar should cover the perimeter of the pipe once and not go beyond the area between the two paper tapes.
  13. Place the fiberglass band on the epoxy adhesive and wrap it around the pipe and hold it at the junction.
  14. Re-apply the epoxy adhesive mortar on the fiberglass band and cover the entire surface. Wrap the rest of the fiberglass band on the pipe. The result should be such that the fiberglass band is wrapped around the pipe twice and epoxy glue is placed in between it.
  15. Once the fiberglass band has completely covered the surface of the pipe, re-layer the fiberglass band with epoxy adhesive mortar. So that a 2-3 mm layer of adhesive mortar covers the surface of the fiberglass bond.
  16. Finally, remove paper tapes and allow the epoxy adhesive to reach full strength for 24 hours.

Megatite is a manufacturer of two-component epoxy adhesives for various applications in the construction, petrochemical, oil, gas, power, water and wastewater industries.

In this article, we tried to acquaint you with all the steps of repairing in service pipe leakage. This content has been prepared by the Megatite content team. If you have any questions or criticisms about any of the content, you can leave a comment below.

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Epoxy adhesive for repairs and reconstructions

Epoxy adhesive for repairs and reconstructions

How to use epoxy adhesive to repair and rebuild different surfaces.

In old buildings or even new buildings, there is a need to repair and renovate surfaces in different periods. It is almost impossible for a house to not need to be improved or repaired at all. yet it is very important what methods you use to do these repairs or how much these renovations will cost. In this article, we tried to guide you in doing these and provided you with the best method for repairs and reconstructions. So stay tuned for the rest of this article.

Epoxy adhesives and its applications in repair and reconstruction of surfaces

The use of epoxy in various industries has led to an increase in their use in recent years. One of the applications of this product is the use of epoxy adhesive for repair and reconstruction. These products are a suitable material for repair, restoration and renovation of various surfaces due to their excellent adhesion properties. Accordingly, you can use these adhesives, for cracks in concrete, cracks in tiles, ceramics, glass, stone, etc. In addition, these products are suitable for repairing wooden, metal and plastic surfaces. Epoxy adhesive works as a strong barrier on the damaged area and after cured, maintains the strength and durability of the joints.
Megatite LTN epoxy adhesive is one of the quality products that can be used for repair and reconstruction. Application of Megatite LTN epoxy adhesive for repair includes all surfaces, including concrete and stone

Methods of repair or reconstruction of concrete and stone

Concrete and stone are among the surfaces that are more prone to breakage or cracking and need to be repaired and rebuilt. Various methods are used to repair and reconstruct concrete and stone surfaces, which we will examine in the following.

Repair of concrete surfaces

Concrete is one of the surfaces that may be cracked and damaged during construction or use. In these cases, different methods are used to repair and renovate it. These methods include Re-concreting or reconstructing concrete, repair of unformed concrete surfaces, concrete spraying, precast concrete with injected mortar and using epoxy adhesive. Among the methods introduced, the use of epoxy adhesive for repair and reconstruction of concrete surfaces has better results. Of course, it is worth mentioning that in these cases, the cause of damage to the concrete surface should be investigated first and in accordance should be repaired. But in all cases, epoxy adhesives are able to repair these surfaces with better quality and higher durability.

Restoration of stone surfaces

Stone surfaces, especially facade stones, crack or break after a while. This causes further Complications in the building. Stone surfaces should be repaired and rebuilt as soon as possible. It is common to use screws and roll plates or epoxy adhesive to repair. In this case, epoxy adhesive gives optimal, mostly permanent results.

Repair or renovation?

To answer the question, different aspects must be considered. But in general, if different surfaces of the building have minor damages that can be repaired, then repairing is better. This in case of the absence of other factors like monotony and boredom for renovation.
 By repairing different surfaces, you can save a lot of expense. For using the correct method of repair like using epoxy adhesive, there is no need for expert workers. Also, using these products is very low-cost compared to renovating different parts of the building. 

You can easily repair damaged concrete and stone surfaces using Megatite LTB epoxy adhesive.

Stone fracture and crack repair with epoxy adhesive

According to the article on “Application of Epoxy Adhesive in Construction Industry”, using this product to repair stone surfaces is associated with the best results. To repair these surfaces with adhesive, you must pour a mixture of resin and hardener on the cracked or broken surface. This penetrates the adhesive into the grooves and fills the crack which will make a deep connection. This application of epoxy adhesive causes the surfaces to be effectively joined together in a permanent bond. However, pressure injection method can also be used to repair stone surfaces.

Megatite S epoxy adhesive is suitable for repairing stone surfaces. The viscosity of this product is appropriate and it is consistent. also, it repairs the stone without damaging it.

Concrete fracture and crack repair with epoxy adhesive

Using epoxy adhesive to repair concrete surfaces is a great idea; because these materials can be easily mixed and used. In addition, after the reconstruction, it is tested for proper quality and durability. It is better to rub these surfaces mechanically and then clean them with suitable chemicals. The concrete surface must be thoroughly clean and dry when using epoxy adhesive.

Megatite SF epoxy adhesive is a product used to repair metal and fiberglass surfaces. This product can easily fix caused problems.

Features of a suitable adhesive for repair and reconstruction

Given what has been said, the use of epoxy adhesive will be very useful for repairing various surfaces. This is due to the features that these products have. One of the prominent features of these adhesives is their suitable viscosity. In addition, special chemical formulas that cause permanent attachment between surfaces, high durability, resistance to temperature changes, no damage to the façade, etc. are some of the features of these products.

Megatite adhesives for repair and reconstruction of surfaces

Megatite brand adhesives are produced special formulations. Accordingly, it has excellent quality and the quality of repair and reconstruction of surfaces can be guaranteed. In the previous sections of this article, a number of products of this brand are introduced. But in addition to them, other products in this brand have been prepared for repair of various surfaces, which we will discuss in the following.

Megatite LTM

Megatite C

Megatite LTC

These products, like the previous adhesives mentioned above, are very suitable for the reconstruction and sealing of stone and concrete surfaces. The method of preparation and directions are stated along with other information on the packages of these products.

Important notes to consider when buying adhesive

When buying epoxy adhesive for repair and reconstruction, be sure to pay attention to such things as their applications, surfaces that need reconstruction and their features. Also pay attention to which substrates these products are suitable for and what is their POT life and limitations of their use. Of course, for more complete information about these cases, you can refer to the “Comprehensive Guide to Using Epoxy Adhesive”.

Conclusion

In this article, we tried to point out another application of epoxy adhesive. Based on the points mentioned in this article, you can perform the reconstruction and repair of different parts of the building in the shortest amount of time and excellent quality by ordering one of the Megatite brand adhesives. Relying on the knowledge of its engineers and the latest technologies in the world, this brand has formulated products that stand along well with similar foreign products. So you can increase the durability of the structure by ordering these products and using them.

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What Are the Best Adhesives for Installing Facade Stones?

What Are the Best Adhesives for Installing Facade Stones?

Everything you need to know about a great adhesive for installing facade stones

One of the building’s beautification elements is its facade. you can see that the use of different types of stones for the appearance of buildings has increased significantly by looking around. One of the most important things in installing a facade stone is the installation method. One of the best methods is to use epoxy adhesives. In order to choose the right epoxy adhesive for this job, you have to consider many factors, all of which cannot be explained in this article. For full knowledge of the mentioned factors, you can read “What is an Epoxy Adhesive? All You Need to Know About Epoxy Resin Adhesives”.

Stay tuned to get acquainted with the best epoxy adhesive for installing stone facades.

Types of facade stone and its suitable adhesive

Not all stones can be used for facade buildings. Because facade stones have unique features such as beauty, high strength, resistance, and the ability to be cut and engraved. In fact, these features make them suitable for use in building facades. To get acquainted with these stones and epoxy stone adhesive suitable for their installation, we recommend reading this part of the article carefully.

Types of stone facades

Travertine facade stone

Travertine facade stone can be provided in dark and light colors. This rock has a marbled appearance and has a high resistance to climate change. If you plan to use travertine stone in the installation of your building facade, you should use clear epoxy stone adhesive. Because this stone is transparent and can reflect adhesive color when exposed to light

Marble facade

One of the most beautiful and expensive facade stones is marble. This stone is extracted from mines in different colors. One of the features that sets this stone apart from other products is its ability to pass light. For this reason, the best epoxy adhesive to install this stone is a light-colored adhesive.

Granite facade stone

Granite is one of the most widely used stones in stone facades. This stone has a clear and beautiful appearance and has high strength and resistance to abrasion and climate change. This stone has a beautiful and shiny appearance. Therefore, you should use light-colored adhesive to install it so that the beauty of the facade is maintained.

Porcelain

Porcelain stone is a suitable product for building facades due to its high strength. The color of this stone varies from white to gray. When using this product to install facade stone, if its color is dark, you can use dark epoxy adhesives. But if selected stones are white, it is better to use light-colored epoxy glue.

Sandstone

Sandstone is one of the sedimentary rocks that with a soft and rough texture. These stones are reasonably priced. You can also use dark colored adhesives for these stones.

It is worth noting that the color of epoxy adhesives has no effect on their adhesion strength. The only difference between the two is the color. Each of them has a high adhesion strength and you can use them safely. To learn how to use these adhesives, you can refer to “Comprehensive Guide to Using Epoxy Adhesive”.

 

Why is epoxy adhesive better than other methods?

There are several ways to install facade stone. But each has its drawbacks that limit its use. But the use of epoxy stone adhesive can be boldly introduced as the best way to perform a stone façade that satisfies any user. One of the features that makes this method better than other methods is its low cost. This method has a lower cost than Scope Plant and other methods. In addition, its maintenance and reconstruction costs are very low. Because bonding surfaces using the best epoxy adhesive is permanent.

Another advantage of using stone adhesive is easy installation and high speed. Workers do not need to have special expertise in using this method. If you use epoxy adhesive, be certain that temperature changes and weather conditions will not affect the appearance of the building. The high strength of the adhesion enables the facade to face drift, earthquake and other factors without being damaged.

What is the best adhesive for installing facade stone?

The best epoxy adhesive used to install stone must have certain properties. Accordingly, the best adhesive for installing stone should be able to cure at different temperatures. This allows you to safely use it at different environments. In addition, the resistance of the adhesive must be high against temperature changes. The product should be easy to use so that everyone can use it. consistency is another feature of this type of adhesive. High chemical resistance, maintaining adhesion strength under adverse conditions are also suitable properties of epoxy stone adhesive.

Foreign or Iranian adhesives? which one is better?

You may be wondering which is better for installing facade stone, Iranian or foreign adhesive. Anyone who has this in mind only thinks of great results. But you should know that the result will only be great if you use safe and original materials. There are various Iranian and foreign adhesives in the market which makes it difficult for customers to choose. But if you pay attention to only a few points, the answer becomes easy and you can buy the best epoxy adhesive.

  •  Buying the original adhesive:
    First, you should consider that the import of foreign adhesives to the country is limited. The shortage of these products in the market has provided a good ground for profiteers to bring many counterfeit products to the market under the name of foreign adhesives. Therefore, if you buy foreign adhesives, you are more likely to buy counterfeit adhesives. While you can buy Iranian products with confidence and enjoy their quality.
  • Adhesive price:
    If you buy foreign stone adhesive, due to the cost of importing these products as well as their high transportation, they are really costly. Meanwhile, Iranian epoxy stone adhesive has been introduced to the market at a very reasonable price.

 

According to these statements, it can be seen that buying Iranian adhesives is the best option. These products are in no way inferior to similar foreign products in terms of quality and adhesion properties.

 

Does the price affect the choice of epoxy adhesive?

If you have chosen to use epoxy adhesive to install facade stone, you need to prepare a suitable adhesive that fits your desired stone. When you go to the market, you will encounter different prices. Once you determine that the product is genuine or counterfeit, it is time to check the price of these adhesives. When doing so, you should pay attention to the fact that you should never sacrifice quality for the price. A product may have a high price, But a performance quality worth the cost. In many cases, adhesives that are very cheap are not of good quality. As a result, using this type of adhesive may cause problems in the implementation of the building facade and its subsequent costs may be irreparable.

Megatite C

Megatite C adhesive is another epoxy adhesive that can be an ideal product for stone facade with its consistency and void filling properties. The color of this product is completely transparent and in cases where the beauty of the surface is considered, it is considered the best epoxy adhesive. This adhesive is used for adhering concrete, wood, polymer and metal surfaces as well as sealing and repairs. Some of the unique features of this product are its high chemical resistance and maintaining adhesion even when immersed in water for a long time after curing.

Megatite S

Megatite S adhesive is one of the two-part adhesives with excellent adhesion. It is known as one of the best epoxy adhesives for installing facade stones. The mixture of resin and hardener is very simple to prepare in a ratio of 1: 1. This product has the ability to cure at room temperature and is effective for bonding concrete, stone and metal surfaces, as well as sealing and repairs. It has a semi-solid structure, a dark color and is flexible.

In order to get acquainted with these adhesives, we recommend reading the datasheets of epoxy adhesives.

Technical comparison of Megatite adhesive with foreign samples

As mentioned in the previous sections, Megatite S and C epoxy stone adhesives compete well with similar foreign products. Many foreign products have high tensile, shear and compressive strength. But Megatite products are no less. Megatite S has a tensile strength of 27 MPa and Megatite C, with a tensile strength of 55 MPa, can show good resistance to stresses. 

The Megatite S also has a shear strength of 13.5 MPa. Therefore, by using this adhesive, you can be sure of the invulnerability of the stones to the desired surface. The compressive and flexural strengths of the Megatite S are 80 and 17 MPa, respectively. Megatite C with a compressive and flexural strength of about 60 and 25 MPa, is able to withstand the adhesion of foreign stones.

Megatite is a manufacturer of two-part epoxy adhesives for various applications in construction, petrochemical, oil, gas, power, water, and wastewater industries.

Conclusion

Today, with the increasing use of stones for building facades, the use of epoxy stone adhesive is also increasing. Relying on the knowledge of its experts, the Megatite brand has produced epoxy adhesives with unique capabilities. The two products Megatite S and Megatite C, which are formulated by this brand, are among the best stone epoxy adhesives. With these products, you can have a beautiful stone facade and be sure of its longevity.

Order and Inquiry for product

Also, read on our blog:

Megatite PM Epoxy Adhesive

Megatite PM Epoxy Adhesive

Megatite PM Two-Part  Epoxy Adhesive Megatite PM is a two-part room temperature curing adhesive. The kit consists of resin, hardener, gloves, and a spatula. Megatite PM is based on epoxy resin and amine hardeners It is useful for a various range of metals and...

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member of the vendor list

member of the vendor list

The Ministry of Petroleum updated its long list of resources on May 12, 2020, listing 1,287 companies as sources of supply for the ministry’s central office, which also includes the name of the Pouyesh Composite Yekta company in this list.The explanation of this...