The Universal Selection Source: Adhesives Ingredients

Epoxy
Epoxies are created by polymerizing a mixture of two starting compounds, the resin and the hardener. Epoxy adhesives are thermosetting resins which solidify by polymerization and, once set, will soften but not melt on heating. Two-part resin/hardener epoxy systems will solidify on mixing (sometimes accelerated by heat), while one-part epoxy adhesives require heat to initiate the reaction of a latent catalyst. The properties of epoxy adhesives are also varied through the use of fillers. Thanks to their versatility and relatively low cost, they find application in wide range of formulations.

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Selection Guide

Epoxy Resins for Adhesives and Sealants

By Edward M. Petrie

This guide is designed to introduce you to epoxy resins used in adhesives and sealants. Epoxy resin based adhesives are probably the most versatile family of adhesives because they bond well to many substrates. Also, they can be easily modified to achieve widely varying properties. This selection guide will familiarize you with the fundamentals and various types of epoxy resins for adhesives and sealants. This guide will endeavor to direct the formulator through the process of selecting an epoxy resin, or combination of resins of which many are available for a specific adhesive or sealant formulation and end-use requirement.

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