{"id":4283,"date":"2020-03-05T18:29:38","date_gmt":"2020-03-05T18:29:38","guid":{"rendered":"https:\/\/lbifiberglass.com\/dev\/?p=4283"},"modified":"2025-05-14T14:16:26","modified_gmt":"2025-05-14T18:16:26","slug":"cold-weather-and-fiberglassing","status":"publish","type":"post","link":"https:\/\/lbifiberglass.com\/dev\/cold-weather-and-fiberglassing\/","title":{"rendered":"Cold Weather and Fiberglassing"},"content":{"rendered":"<p style=\"text-align: center;\"><strong><span style=\"font-size: 18px;\">The temperature is below 50 degrees and I need to do a fiberglass job. How do I do it successfully?<\/span><\/strong><\/p>\n<p><strong>Tips for Fiberglassing When It&#8217;s Cold:<\/strong><\/p>\n<ul>\n<li><span style=\"font-size: 14px;\">Check the weather forecast. Don&#8217;t begin your project if it is going to be damp and rainy.<\/span>\n<ul>\n<li><span style=\"font-size: 14px;\">Dampness will slow cure times and may cause epoxy to have amine blush.<\/span><\/li>\n<\/ul>\n<\/li>\n<li><span style=\"font-size: 14px;\">Check the temperature. If it is below 55 degrees, you may run into curing problems.<\/span><\/li>\n<li><span style=\"font-size: 14px;\">To generate more heat, use a higher percentage of catalyst to resin.<\/span>\n<ul>\n<li><span style=\"font-size: 14px;\">Up to 2% for Polyester(20cc per Quart), 3% for Vinylester(30cc per Quart).<\/span><\/li>\n<li><span style=\"font-size: 14px;\">Use a Fast Cure Hardener if using Epoxy.<\/span><\/li>\n<\/ul>\n<\/li>\n<li><span style=\"font-size: 14px;\">If outside tenting will help retain heat for your project.<\/span><\/li>\n<li><span style=\"font-size: 14px;\">If outside try to not fiberglass after 2-3pm because the sun is setting and you will lose heat.<\/span><\/li>\n<li><span style=\"font-size: 14px;\">The resin and material to be fiberglassed should be at a 70 degree room temperature.<\/span>\n<ul>\n<li><span style=\"font-size: 14px;\">Items for warming resin and surfaces: Water bath, heat gun, heaters, heat lamp, etc,.<\/span><\/li>\n<li><span style=\"font-size: 14px;\">DO NOT use a heat source that uses an open flame.<\/span><\/li>\n<li><span style=\"font-size: 14px;\">A heat source under your project will help warm more efficiently as heat rises.<\/span><\/li>\n<\/ul>\n<\/li>\n<li><span style=\"font-size: 14px;\">Resin may thicken in cold weather.<\/span>\n<ul>\n<li><span style=\"font-size: 14px;\">Thicker resin requires extra effort to wet out the glass.<\/span><\/li>\n<li><span style=\"font-size: 14px;\">More resin than normal might be used due to its thickness.<\/span><\/li>\n<\/ul>\n<\/li>\n<li><span style=\"font-size: 14px;\">Heat should be maintained for several hours after application.<\/span><\/li>\n<li><span style=\"font-size: 14px;\">Epoxy resin needs heat over a longer period of time to cure effectively.<\/span>\n<ul>\n<li><span style=\"font-size: 14px;\">Heat would need to be maintained over a period of days, rather than hours.<\/span><\/li>\n<\/ul>\n<\/li>\n<\/ul>\n<p><span style=\"font-size: 16px;\">Fiberglass resins need heat to cure. Once the temperatures go below 60 degrees an alternate heat source needs to be used to make sure resin cures fully.\u00a0 The type of resin used will determine the amount of time the heat would need to be maintained.\u00a0 One of the best rules of thumb is to make sure all the materials that will be fiberglassed or used to fiberglass are at a temperature of 70 or over.\u00a0 It is possible to fiberglass in colder weather, but you must take the correct steps to make sure your project is successful.<\/span><\/p>\n","protected":false},"excerpt":{"rendered":"<p>The temperature is below 50 degrees and I need to do a fiberglass job. How do I do it successfully? Tips for Fiberglassing When It&#8217;s Cold: Check the weather forecast. Don&#8217;t begin your project if it is going to be damp and rainy. Dampness will slow cure times and may cause epoxy to have amine&hellip;<\/p>\n","protected":false},"author":2,"featured_media":4368,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"footnotes":""},"categories":[35],"tags":[],"post_series":[],"class_list":["post-4283","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-tech-guides","entry","has-media"],"acf":[],"jetpack_featured_media_url":"https:\/\/lbifiberglass.com\/dev\/wp-content\/uploads\/2020\/03\/Cold-Temps-outside.jpg","_links":{"self":[{"href":"https:\/\/lbifiberglass.com\/dev\/wp-json\/wp\/v2\/posts\/4283","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/lbifiberglass.com\/dev\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/lbifiberglass.com\/dev\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/lbifiberglass.com\/dev\/wp-json\/wp\/v2\/users\/2"}],"replies":[{"embeddable":true,"href":"https:\/\/lbifiberglass.com\/dev\/wp-json\/wp\/v2\/comments?post=4283"}],"version-history":[{"count":4,"href":"https:\/\/lbifiberglass.com\/dev\/wp-json\/wp\/v2\/posts\/4283\/revisions"}],"predecessor-version":[{"id":10218,"href":"https:\/\/lbifiberglass.com\/dev\/wp-json\/wp\/v2\/posts\/4283\/revisions\/10218"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/lbifiberglass.com\/dev\/wp-json\/wp\/v2\/media\/4368"}],"wp:attachment":[{"href":"https:\/\/lbifiberglass.com\/dev\/wp-json\/wp\/v2\/media?parent=4283"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/lbifiberglass.com\/dev\/wp-json\/wp\/v2\/categories?post=4283"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/lbifiberglass.com\/dev\/wp-json\/wp\/v2\/tags?post=4283"},{"taxonomy":"post_series","embeddable":true,"href":"https:\/\/lbifiberglass.com\/dev\/wp-json\/wp\/v2\/post_series?post=4283"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}