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Epoxy Resin FAQS

Epoxy Adhesive, Polyurethane Potting Compounds, and Custom Resin Formulation Frequently Asked Questions

Epic Resins provides the best epoxy adhesive and polyurethane potting compound solutions for manufacturing applications. We pride ourselves on our expert production, fast turnaround, unparalleled support, and state of the art development lab, as well as being the best resource for our adhesives and resins. We have knowledgeable and competent technicians eager to answer any and all of your questions. Below are commonly asked questions regarding the use of our epoxies, polyurethane adhesives, and potting compounds. Choosing the correct adhesive solution will affect the quality, durability, and lifespan of your OEM products. Using the correct potting compound for your electronic radio frequency devices will enhance the quality of radio/Wi-Fi signaling. Epic Resins will help you choose the best adhesive solution for your specific manufacturing application. Whether you need epoxies for products submerged in water with high heat such as a hot tub filter, metal to plastic adhesives, or a resin which can withstand virtually any other condition, we have the adhesive you need or will custom formulate one for you specific needs.

Contact our epoxy adhesive and polyurethane potting compounds experts if your question is not answered below.

A: What type of packaging is available?

Epic Resins typically packages product in 275 gallon totes, 55-gallon drums, 5-gallon pails, and 1-gallon pails.  Quarts and pints are also available.  Materials with mix ratios of 1:1, 2:1, and 4:1 are available in 50 ml and 400 ml cartridges.

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A: Do you carry UL recognized materials?

Yes, Epic Resins manufactures epoxy resin and polyurethane compounds that are listed by UL under the following files:

1. Plastics-Components File QMFZ2.E55516

2. System Components-Electrical Insulation-Components File OBJS2.E123927

3. Varnishes-Component File OBOR2.E123928

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A: Which is better, epoxy resin or polyurethane?

The answer to this question is completely dependant on the application.  In some applications, epoxy resin and polyurethane are interchangeable.  You must look at the benefits of each of the materials in relation to the environment to which the final product will be subjected.  Also, there are different requirements for handling and processing of the materials.

In general, epoxy resins will have better chemical resistance, higher temperature resistance, and good adhesion to many substrates.  In general, polyurethanes have lower exotherms, cure quicker, and are better in applications where the product is subjected to wide temperature variation (i.e. -40C to 125C), especially low temperatures.  Properties of materials will vary greatly due to the vast array of possible formulations, so it is best to investigate all applicable requirements before a product is selected and tested.

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A: Why does my material not gel in the time specified on your datasheet?

Gel times are dependent on mass, temperature, and the geometry of the material during cure.  The gel time listed on a datasheet is a result of a test run at a specific temperature (usually 25C), a specific mass (i.e. 100 grams), in a specific geometry (a plastic beaker).  Whenever one of these three change, it can affect the gel time.  Warmer temperatures will speed up the gel, lower temperatures will slow it down.  The more mass you have, the faster the material will gel.  Material geometry matters because material in a large mass will gel more quickly than material spread out (i.e. in a cup vs. spread on a tabletop).

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A: What is the shelf life of your products?

Shelf life is formulation dependent, however, for two component epoxies it is generally 12 months and for 2 component polyurethanes it is generally 6 months.

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A: How do I dispose of epoxy resin and polyurethane compounds?

Epic Resins recommends all materials be disposed of by a licensed contractor, incineration being the preferred method of disposal.

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A: How close do I have to be on my mix ratio?

Epic Resins epoxy resin and polyurethane systems are designed to be mixed using the specified ratio on the datasheet.  If you are +/-2% of ratio, your results should be acceptable.

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A: Is there something I can add to my material to thin it out?

Whenever you add a thinning agent to a formulated system, you are changing the characteristics of final cured properties.  We recommend warming the material to lower the viscosity, not adding a thinning agent.

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A: How can I speed up the reaction of my product?

Warming the material will increase the reaction speed of the material.  This can be accomplished by pre-heating the resin, pre-heating the parts, or a combination of both.

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A: Do you sell any dispense equipment?

Epic Resins does not sell any meter, mix, and dispense (MMD) equipment.  We will work with you and the equipment vendor of your choice to ensure you have a complete understanding of the processing requirements for your particular material(s).  By working closely with you and your equipment vendor, we can ensure a smooth transition into production.  You can view MMD equipment manufacturers by clicking on the Links page.

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