Two part epoxy<\/a> adhesives (also called two component epoxy, 2K or 2-Cor bi pack epoxy)\u00a0\u00a0have a longer shelf life and less stringent storage temperatures than single component epoxies.\u00a0 The mix ratio may be by weight or volume. For example, 1:1 by volume or 10:1 by weight.<\/p>\nTwo part epoxy products come in a variety of packaging sizes. You can put large bulk packages of parts A and B into automatic dispensing systems that dispense the mixed product onto the part through a static mix nozzle.\u00a0 For those requiring smaller amounts, consider a side by side bi-pack cartridge to dispense through a static mix nozzle.<\/p>\n
Mixing and Pot Life of Two Part Epoxy Adhesives<\/h2>\n
It is possible to weigh or measure the part A and part B and hand mix.\u00a0 But the ratio must be accurate and the mixing thorough to maintain consistent results.\u00a0 For industrial use, a controlled process is recommended.\u00a0 However, should you choose to measure and hand mix, mix only what you will use during the \u201cusable life\u201d or \u201cpot life\u201d or \u201copen time\u201d of the product. These terms are generally mean the time it takes for the product to double in viscosity.\u00a0 That said, if the application is highly dependent on a controlled viscosity, your usable life will be shorter.<\/p>\n
Two Part Epoxy Curing Time<\/h2>\n
The other value often noted on data sheets is fixture time or handling strength.\u00a0 These have various definitions, but the purpose of the listing is to show when the two part epoxy will set enough to unclamp or move the part.\u00a0 The full cure of a two part epoxy can be several days.\u00a0 However, adequate strength for further assembly or packaging can be reached within minutes or hours (depending on the product.)\u00a0 You can increase cure speed with heat.\u00a0 The general rule of thumb is for every 10\u00b0C increase in temperature; the cure time is cut in half.<\/p>\n
Some two part epoxy adhesives require a heat cure to achieve their ultimate temperature resistance. Heat Resistant & Two-Part Epoxy<\/a><\/p>\n","protected":false},"excerpt":{"rendered":"Two Part Epoxy Adhesives Curing two part epoxy consistently is dependent on the product, proper mixing, time, and temperature. Two part epoxy adhesives (also called two component epoxy, 2K or 2-Cor bi pack epoxy)\u00a0\u00a0have a longer shelf life and less stringent storage temperatures than single component epoxies.\u00a0 The mix ratio may be by weight or […]<\/p>\n","protected":false},"author":5,"featured_media":11855,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"footnotes":""},"categories":[607,612],"tags":[104,105,106],"class_list":["post-1465","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-adhesive-selection-and-use","category-tips","tag-epoxy-adhesive-curing","tag-epoxy-curing","tag-two-part-epoxy"],"acf":[],"yoast_head":"\n
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