{"id":478,"date":"2026-11-06T19:28:04","date_gmt":"2026-11-06T11:28:04","guid":{"rendered":"https:\/\/yutotape.com\/?post_type=product&#038;p=478"},"modified":"2026-11-07T00:10:07","modified_gmt":"2026-11-06T16:10:07","slug":"3m-1388b-1m-1219mm-66m","status":"publish","type":"product","link":"https:\/\/yutotape.com\/materials\/3m-1388b-1m-1219mm-66m\/","title":{"rendered":"3M\u2122 1388B-1M 3M\u2122 1388B-1M Matte Black Polyester Film Tape"},"content":{"rendered":"<div class=\"yuto-product-overview\">\n<p class=\"yuto-lead-desc\">3M\u2122 Matte Black Polyester Film Tape 1388B-1M is a specialty electrical tape with an anti-reflective matte black polyester backing and an acrylic adhesive. Its non-glare surface and high opacity make it the preferred solution for masking optical camera modules, display backlights, and electronic assemblies requiring anti-reflective black insulation.<\/p>\n<h3>Key Performance Highlights<\/h3>\n<ul class=\"yuto-highlights-list\">\n<li>Matte non-reflective black surface eliminates internal optical glare and reflections<\/li>\n<li>Uniform light opacity prevents stray light leakage in display backlights and cameras<\/li>\n<li>High-tack acrylic adhesive bonds cleanly without adhesive ooze or flagging<\/li>\n<li>UL Recognized Class 130\u00b0C component for precision electro-optical hardware<\/li>\n<\/ul>\n<h3>Recommended Industrial Applications<\/h3>\n<p>Anti-glare optical light masking, camera module shielding, matte black transformer wrapping<\/p>\n<h3>Authoritative Technical Specifications<\/h3>\n<table class=\"yuto-specs-table\">\n<tbody>\n<tr>\n<th>Backing Material<\/th>\n<td>1.0 mil (0.025 mm) matte black anti-glare polyester film<\/td>\n<\/tr>\n<tr>\n<th>Adhesive System<\/th>\n<td>Acrylic pressure-sensitive adhesive<\/td>\n<\/tr>\n<tr>\n<th>Total Thickness<\/th>\n<td>0.063 mm (2.5 mil)<\/td>\n<\/tr>\n<tr>\n<th>Operating Temperature<\/th>\n<td>Up to 130\u00b0C (266\u00b0F) \u00b7 UL Class 130\u00b0C<\/td>\n<\/tr>\n<tr>\n<th>Visual Color \/ Appearance<\/th>\n<td>Matte Black (Anti-Glare 1-mil Polyester)<\/td>\n<\/tr>\n<tr>\n<th>Dielectric \/ Flame Rating<\/th>\n<td>UL Recognized, File E17385 \u00b7 5,000 Volts dielectric breakdown<\/td>\n<\/tr>\n<tr>\n<th>Precision Converting<\/th>\n<td>Precision Rotary Slitting, Die-Cutting, Custom Widths from 2mm to Log Width<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/div>\n","protected":false},"excerpt":{"rendered":"<p>3M\u2122 1388B-1M featuring 1.0 mil (0.025 mm) matte black anti-glare polyester film and Acrylic pressure-sensitive adhesive. Operating temperature Up to 130\u00b0C (266\u00b0F) \u00b7 UL Class 130\u00b0C with UL Recognized, File E17385 \u00b7 5,000 Volts dielectric breakdown. Precision slit and die-cut to custom B2B engineering specifications.<\/p>\n","protected":false},"featured_media":928,"comment_status":"open","ping_status":"closed","template":"","meta":{"_acf_changed":false},"product_brand":[],"product_cat":[38],"product_tag":[],"class_list":["post-478","product","type-product","status-publish","has-post-thumbnail","product_cat-insulating-specialty-film-tapes","first","instock","shipping-taxable","purchasable","product-type-variable"],"acf":[],"_links":{"self":[{"href":"https:\/\/yutotape.com\/wp-json\/wp\/v2\/product\/478","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/yutotape.com\/wp-json\/wp\/v2\/product"}],"about":[{"href":"https:\/\/yutotape.com\/wp-json\/wp\/v2\/types\/product"}],"replies":[{"embeddable":true,"href":"https:\/\/yutotape.com\/wp-json\/wp\/v2\/comments?post=478"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/yutotape.com\/wp-json\/wp\/v2\/media\/928"}],"wp:attachment":[{"href":"https:\/\/yutotape.com\/wp-json\/wp\/v2\/media?parent=478"}],"wp:term":[{"taxonomy":"product_brand","embeddable":true,"href":"https:\/\/yutotape.com\/wp-json\/wp\/v2\/product_brand?post=478"},{"taxonomy":"product_cat","embeddable":true,"href":"https:\/\/yutotape.com\/wp-json\/wp\/v2\/product_cat?post=478"},{"taxonomy":"product_tag","embeddable":true,"href":"https:\/\/yutotape.com\/wp-json\/wp\/v2\/product_tag?post=478"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}