![]() These co-reactants are often referred to as hardeners or curatives, and the cross-linking reaction is commonly referred to as curing. The IUPAC name for an epoxide group is an oxirane.Įpoxy resins may be reacted ( cross-linked) either with themselves through catalytic homopolymerisation, or with a wide range of co-reactants including polyfunctional amines, acids (and acid anhydrides), phenols, alcohols and thiols (sometimes called mercaptans). ![]() The epoxide functional group is also collectively called epoxy. Epoxy resins, also known as polyepoxides, are a class of reactive prepolymers and polymers which contain epoxide groups. A syringe of "5-minute" epoxy glue, containing separate compartments for the epoxy resin and the hardener Structure of the epoxide group, a reactive functional group present in all epoxy resinsĮpoxy is the family of basic components or cured end products of epoxy resins. I just wished manufacturers listed actually tested shelf life and degradation over time based on time and storage conditions such as temperature, exposure to air and humidity, such as keeping the product refrigerated or frozen, and the influence of air and humidity on opened containers – for example, when the product is kept for 10 years in storage in an unheated warehouse or garage.This article is about the thermoset plastic materials. Recently, a product which the salesperson listed as having a 6 month shelf life, which I had purchased a large amount of for a canoe project that never came to fruition due to unforeseen circumstances, was opened, 3 years later, and functioned just as expected when new. ![]() Shelf life and what affects it is invaluable to people such as myself who use epoxy occasionally in varying amounts to avoid wastage – indeed I have noticed hardeners changing colour but the resulting mix seems to have worked just as well. All in one store - The Epoxy Resin (951) 677-0400Īddress: 540 Crane St suite A Lake Elsinore, CA 92530įinally a website that actually explains epoxy shelf life and what degradation may occur! This information is really hard to come by or so it seems, what with Google presenting so many useless search results. We also offer colors, pigments, glitter, and other additives for various epoxy resin projects. is an expert manufacturer of various epoxy resins that can be used for both craft projects and industrial applications. We created a handy comparison guide to help understand the different properties of our epoxy resin. **If you made it this far down, We occasionally pick the best comment to win a giveaway. Let us know what you would like to create below in the comments. PS: Would you like to contribute to our faq or community? Make a video documenting your project creation or educational piece, we would love to share with our community. Can u tell us which coaster/s is from the yellow resin? 1, 2, 3, 4? □ #epoxy ♬ original sound - TheEpoxyResinStore I did a test recently with some older yellow mix. We mix our formulas based on order volume so it's the freshest you can get on the market. Reality is the material may still be good, but just does not look the same.Īs always, please test a small amount prior to any large installations. Sometimes the user believes it is not good (hence throwing away). The hardener oxidizes from oxygen which can discolor it slowly while stored over time. We recommend 24 months as a universal shelf life for our products, although we also recommend using the product within a few months prior to any possible material changes. ![]() If the material is more than a year old do a test to satisfy yourself that it cures properly. The resin may crystallize or the hardener may darken (YELLOW) but this does not affect its performance. ![]() What is the shelf life of your epoxy resin products?Īll solvent-free epoxies have essentially unlimited shelf lives so long as they are stored in sealed containers. ![]()
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