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Yes. Although the words “flame” and “fire” can be used interchangeably, the real point of difference in these two terms lies in the words “resistant” and “retardant.”


A material that is “flame resistant” is inherently resistant to igniting and will not melt or drip when exposed to extreme heat. While flame resistant materials can catch fire, they’re not likely to ignite just from being near fire and many flame resistant materials will choke a fire to the point of extinguishing it.


A material that is “flame retardant” is one that has been chemically treated to self-extinguish if it catches fire. It will expel gases to suppress a fire. Fire retardant chemicals are most commonly used on plastics and furniture to reduce the chance of a fire spreading.

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

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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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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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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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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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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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Epic Resins has been a leading manufacturer of both polyurethane and epoxy encapsulating resins for decades. Our resins are an excellent solution for protecting fragile electronics from deterioration and failure due to mechanical, chemical and environmental forces. But what about the other options out there?

Conformal coatings are an alternative to potting resins. They're often a spray on solution, providing a thin film of protection against moisture and other contaminants. It can also be applied by dipping or brushing the component with the material. Conformal coatings come in a variety of types, including acrylics, epoxies, polyurethanes, and silicones.

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Essentially, the main difference between resin-based potting compounds is their performance and level of protection. As such, one may be more suitable than another depending on the application.

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These compounds completely seals electronics, making them the ideal solution for environments of elevated exposure and increased mechanical stress. Epic Resin produces a range of polyurethane and epoxy potting compounds, each of which satisfies a comprehensive list of requirements.

These encapsulants and potting materials are more durable than conformal coatings, and can be formulated to a variety of characteristics, from hard opaque compounds to soft clear chemistries.

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This protectant has the advantage of having a very low profile. They are an extra thin lightweight coating and are easily re-workable, depending on their chemistry. They also allow for easy inspection of electrical components. The trade-off with such a thin coating is their vulnerability to harsher environments.

Conformal coatings most commonly find their applications in smaller electronics where the added weight of resin encapsulants is undesirable.

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Knowing the environmental challenges your electrical components will face is an essential part of finding its correct protective solution. Our Technical Sales Representatives will work with you as an extension to your engineering team to establish your needs and manufacture the best solution to protect the electrical components for your application.

To develop the best product for your needs, Epic Resins has the ability to simulate conditions in which the compound will be used. Using these techniques and more, our developers help produce the exact product you require.

Contact our Technical Sales Representative team to learn the most appropriate solution for protecting sensitive electronics.

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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.