{"id":627,"date":"2026-05-29T09:34:16","date_gmt":"2026-05-29T01:34:16","guid":{"rendered":"http:\/\/139.199.182.234\/?post_type=product&#038;p=627"},"modified":"2026-07-22T09:31:50","modified_gmt":"2026-07-22T01:31:50","slug":"%e6%a9%a1%e8%83%b6%e9%98%bb%e7%87%83%e5%89%82","status":"publish","type":"product","link":"https:\/\/dghtj.com\/us\/products\/%e6%a9%a1%e8%83%b6%e9%98%bb%e7%87%83%e5%89%82\/","title":{"rendered":"Rubber Flame Retardant FR-515A"},"content":{"rendered":"<p>Flame Retardant FR-515A is a flame retardant specially developed by our company for producing flame-retardant EPDM black rubber products. This product is a halogen-free, environmentally friendly phosphorus-nitrogen flame retardant, appearing as light purple (or black) fine powder. Its main technical indicators are shown in the following table:<\/p>\n<table width=\"100%\">\n<tbody>\n<tr class=\"firstRow\">\n<td>Item<\/td>\n<td>Index value<\/td>\n<\/tr>\n<tr>\n<td>Appearance<\/td>\n<td>Light purple (or black) powder<\/td>\n<\/tr>\n<tr>\n<td>P2O5 content (m\/m), %<\/td>\n<td>60~80<\/td>\n<\/tr>\n<tr>\n<td>N content (m\/m), %<\/td>\n<td>30~40<\/td>\n<\/tr>\n<tr>\n<td>105\u00b0C volatile matter (m\/m), %<\/td>\n<td>\u22641.0<\/td>\n<\/tr>\n<tr>\n<td>Average particle size D50, \u03bcm<\/td>\n<td>\u226410<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<p><strong>Usage method:<\/strong>Taking EPDM pre-mixed rubber (without flame retardant) with a hardness (Shore A) of 70 degrees as an example: 100 parts EPDM pre-mixed rubber, 40 parts FR-515A. After uniform mixing, the flame-retardant raw rubber can achieve a flame retardancy rating of UL94 1.0 mm V-0. For other flame retardant applications, refer to this example for necessary ratio adjustment tests, and then determine the appropriate ratio.<\/p>\n<p><strong>Safety information:<\/strong>Although FR-515A itself is a flame retardant, it is also flammable before being uniformly mixed with the material to be flame retarded. Therefore, fire prevention measures should be taken during storage, transportation, and use of FR-515A, and it should not be struck with hard objects. Contact with human skin during use will not cause harm to the human body. Since it is a fine powder, it is recommended to wear a dust mask when handling.<\/p>","protected":false},"excerpt":{"rendered":"<p>Flame Retardant FR-515A is a flame retardant specially developed by our company for producing flame-retardant EPDM black rubber products. This product is a halogen-free, environmentally friendly phosphorus-nitrogen flame retardant, appearing as light purple (or black) fine powder.<\/p>","protected":false},"featured_media":329,"template":"","meta":[],"product_brand":[],"product_cat":[28],"product_tag":[],"class_list":["post-627","product","type-product","status-publish","has-post-thumbnail","product_cat-rubber-flame-retardant","first","instock","shipping-taxable","product-type-simple"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v28.0 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>\u6a61\u80f6\u963b\u71c3\u5242FR-515A - \u4e1c\u839e\u5e02\u5b8f\u6cf0\u57fa\u963b\u71c3\u6750\u6599\u6709\u9650\u516c\u53f8<\/title>\n<meta name=\"description\" content=\"\u6a61\u80f6\u963b\u71c3\u5242\" \/>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/dghtj.com\/us\/products\/\u6a61\u80f6\u963b\u71c3\u5242\/\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"\u6a61\u80f6\u963b\u71c3\u5242FR-515A - 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