{"id":2903,"date":"2026-08-10T10:35:32","date_gmt":"2026-08-10T02:35:32","guid":{"rendered":"http:\/\/0"},"modified":"2026-08-04T17:53:22","modified_gmt":"2026-08-04T09:53:22","slug":"specs-for-injection-molding-surface-finishing-spi-standards","status":"publish","type":"post","link":"https:\/\/www.jcinjectionmolding.com\/vi\/blog\/specs-for-injection-molding-surface-finishing-spi-standards\/","title":{"rendered":"Specs for Injection Molding Surface Finishing: SPI Standards"},"content":{"rendered":"<article style=\"font-family: -apple-system, BlinkMacSystemFont, &#039;Segoe UI&#039;, Roboto, Helvetica, Arial, sans-serif;color: #333333;width: 100%\">\n<section style=\"margin-bottom: 30px\">\n<p style=\"font-size: 18px;line-height: 1.8em;text-align: left;margin-bottom: 24px\">N\u00e2ng cao t\u00ednh th\u1ea9m m\u1ef9 c\u1ee7a ph\u1ea7n c\u1ee9ng nh\u1ef1a, t\u00ednh c\u00f4ng th\u00e1i h\u1ecdc x\u00fac gi\u00e1c v\u00e0 hi\u1ec7u su\u1ea5t \u0111i\u1ec7n t\u1eeb \u0111\u00f2i h\u1ecfi quy tr\u00ecnh trang tr\u00ed sau \u0111\u00fac to\u00e0n di\u1ec7n v\u00e0 x\u1eed l\u00fd b\u1ec1 m\u1eb7t l\u00f2ng khu\u00f4n. C\u00e1c b\u1ed9 ph\u1eadn nh\u1ef1a \u0111\u00fac th\u00f4 ti\u00eau chu\u1ea9n th\u01b0\u1eddng xu\u1ea5t hi\u1ec7n \u0111\u01b0\u1eddng ch\u1ea3y, \u0111\u01b0\u1eddng n\u1ed1i m\u1eb7t ph\u00e2n khu\u00f4n ho\u1eb7c v\u1ebft ch\u1ed1t \u0111\u1ea9y l\u00e0m gi\u1ea3m ch\u1ea5t l\u01b0\u1ee3ng th\u1ecb gi\u00e1c. Vi\u1ec7c \u00e1p d\u1ee5ng c\u00e1c h\u1ecda ti\u1ebft khu\u00f4n chuy\u00ean d\u1ee5ng, \u0111\u00e1nh b\u00f3ng g\u01b0\u01a1ng kim c\u01b0\u01a1ng, l\u1edbp ph\u1ee7 d\u1eabn \u0111i\u1ec7n ho\u1eb7c in pad nhi\u1ec1u m\u00e0u s\u1ebd bi\u1ebfn c\u00e1c b\u1ed9 ph\u1eadn polymer th\u00f4 th\u00e0nh c\u00e1c linh ki\u1ec7n b\u00e1n l\u1ebb s\u1eb5n s\u00e0ng cho th\u1ecb tr\u01b0\u1eddng. H\u01b0\u1edbng d\u1eabn k\u1ef9 thu\u1eadt n\u00e0y xem x\u00e9t c\u00e1c ti\u00eau chu\u1ea9n \u0111\u00e1nh b\u00f3ng SPI, t\u1ea1o h\u1ecda ti\u1ebft VDI, c\u00e1c ph\u01b0\u01a1ng ph\u00e1p in th\u1ee9 c\u1ea5p v\u00e0 c\u00f4ng ngh\u1ec7 che ch\u1eafn EMI\/RFI.<\/p>\n<p><img loading=\"lazy\" decoding=\"async\" class=\"alignnone size-full wp-image-2906\" src=\"https:\/\/www.jcinjectionmolding.com\/wp-content\/uploads\/2026\/08\/inspecting-finished-plastic-parts.webp\" alt=\"inspecting-finished-plastic-parts\" width=\"1376\" height=\"768\" srcset=\"https:\/\/www.jcinjectionmolding.com\/wp-content\/uploads\/2026\/08\/inspecting-finished-plastic-parts.webp 1376w, https:\/\/www.jcinjectionmolding.com\/wp-content\/uploads\/2026\/08\/inspecting-finished-plastic-parts-300x167.webp 300w, https:\/\/www.jcinjectionmolding.com\/wp-content\/uploads\/2026\/08\/inspecting-finished-plastic-parts-1024x572.webp 1024w, https:\/\/www.jcinjectionmolding.com\/wp-content\/uploads\/2026\/08\/inspecting-finished-plastic-parts-768x429.webp 768w\" sizes=\"auto, (max-width: 1376px) 100vw, 1376px\" \/><\/p>\n<\/section>\n<p><!-- Table of Contents --><\/p>\n<section style=\"background-color: #f8f9fa;border-left: 4px solid #0056b3;padding: 24px;border-radius: 6px;margin: 40px 0\">\n<h3 style=\"font-size: 22px;font-weight: bold;line-height: 1.5em;margin-top: 0;margin-bottom: 16px;color: #111111\">M\u1ee5c l\u1ee5c<\/h3>\n<ul style=\"list-style-type: none;padding-left: 0;margin: 0\">\n<li style=\"margin-bottom: 12px\"><a style=\"color: #0056b3;text-decoration: none;font-size: 17px;font-weight: 500\" href=\"#spi-vdi-finishes\">1. \u0110\u00e1nh b\u00f3ng Khu\u00f4n SPI (Ho\u00e0n thi\u1ec7n G\u01b0\u01a1ng A-1) &amp; T\u1ea1o H\u1ecda ti\u1ebft VDI \/ Mold-Tech<\/a><\/li>\n<li style=\"margin-bottom: 12px\"><a style=\"color: #0056b3;text-decoration: none;font-size: 17px;font-weight: 500\" href=\"#secondary-operations\">2. C\u00f4ng \u0111o\u1ea1n Th\u1ee9 c\u1ea5p: In Pad, In L\u1ee5a, Kh\u1eafc Laser &amp; S\u01a1n<\/a><\/li>\n<li style=\"margin-bottom: 0\"><a style=\"color: #0056b3;text-decoration: none;font-size: 17px;font-weight: 500\" href=\"#emi-shielding\">3. L\u1edbp ph\u1ee7 Che ch\u1eafn EMI\/RFI D\u1eabn \u0111i\u1ec7n cho V\u1ecf Thi\u1ebft b\u1ecb \u0110i\u1ec7n t\u1eed<\/a><\/li>\n<\/ul>\n<\/section>\n<p><!-- Section 1 --><\/p>\n<section id=\"spi-vdi-finishes\" style=\"margin-bottom: 50px\">\n<h2 style=\"font-size: 28px;line-height: 1.5em;font-weight: bold;margin-top: 40px;margin-bottom: 24px;color: #111111;border-bottom: 1px solid #eaeaea;padding-bottom: 8px\">\u0110\u00e1nh b\u00f3ng Khu\u00f4n SPI (Ho\u00e0n thi\u1ec7n G\u01b0\u01a1ng A-1) &amp; T\u1ea1o H\u1ecda ti\u1ebft VDI \/ Mold-Tech<\/h2>\n<p><img loading=\"lazy\" decoding=\"async\" class=\"alignnone size-full wp-image-2904\" src=\"https:\/\/www.jcinjectionmolding.com\/wp-content\/uploads\/2026\/08\/vdi-mold-cavity-texturing.webp\" alt=\"vdi-mold-cavity-texturing\" width=\"1376\" height=\"768\" srcset=\"https:\/\/www.jcinjectionmolding.com\/wp-content\/uploads\/2026\/08\/vdi-mold-cavity-texturing.webp 1376w, https:\/\/www.jcinjectionmolding.com\/wp-content\/uploads\/2026\/08\/vdi-mold-cavity-texturing-300x167.webp 300w, https:\/\/www.jcinjectionmolding.com\/wp-content\/uploads\/2026\/08\/vdi-mold-cavity-texturing-1024x572.webp 1024w, https:\/\/www.jcinjectionmolding.com\/wp-content\/uploads\/2026\/08\/vdi-mold-cavity-texturing-768x429.webp 768w\" sizes=\"auto, (max-width: 1376px) 100vw, 1376px\" \/><\/p>\n<p style=\"font-size: 18px;line-height: 1.8em;text-align: left;margin-bottom: 24px\">Vi\u1ec7c ch\u1ec9 \u0111\u1ecbnh <a href=\"https:\/\/www.jcinjectionmolding.com\/vi\/service\/surface-finishes\/\"><strong>ho\u00e0n thi\u1ec7n b\u1ec1 m\u1eb7t \u00e9p phun nh\u1ef1a<\/strong><\/a> chuy\u00ean nghi\u1ec7p b\u1eaft \u0111\u1ea7u trong qu\u00e1 tr\u00ecnh ch\u1ebf t\u1ea1o l\u00f2ng khu\u00f4n. Vi\u1ec7c chu\u1ea9n b\u1ecb b\u1ec1 m\u1eb7t l\u00f2ng khu\u00f4n tu\u00e2n theo ti\u00eau chu\u1ea9n \u0111\u00e1nh b\u00f3ng c\u1ee7a Hi\u1ec7p h\u1ed9i C\u00f4ng nghi\u1ec7p Nh\u1ef1a (SPI) qu\u1ed1c t\u1ebf. \u0110\u1ea1t \u0111\u01b0\u1ee3c <strong>ho\u00e0n thi\u1ec7n g\u01b0\u01a1ng SPI A-1<\/strong> \u0111\u00f2i h\u1ecfi ph\u1ea3i \u0111\u00e1nh b\u00f3ng th\u1ee7 c\u00f4ng ti\u1ebfn d\u1ea7n b\u1eb1ng h\u1ee3p ch\u1ea5t b\u1ed9t nh\u00e3o kim c\u01b0\u01a1ng tr\u00ean th\u00e9p \u0111\u00e3 t\u00f4i c\u1ee9ng <strong>S136\u4e0d\u9508\u94a2<\/strong>, lo\u1ea1i b\u1ecf c\u00e1c v\u1ebft x\u01b0\u1edbc si\u00eau nh\u1ecf cho th\u1ea5u k\u00ednh quang h\u1ecdc v\u00e0 b\u1ec1 m\u1eb7t b\u00f3ng cao <strong>polycarbonate (PC)<\/strong> che ph\u1ee7. Vi\u1ec7c \u00e1p d\u1ee5ng <strong>t\u1ea1o v\u00e2n b\u1ec1 m\u1eb7t VDI 3400<\/strong> ho\u1eb7c <strong>kh\u1eafc h\u00f3a h\u1ecdc Mold-Tech<\/strong> t\u1ea1o ra c\u00e1c v\u00e2n b\u1ec1 m\u1eb7t nh\u00e1m m\u1edd, da thu\u1ed9c ho\u1eb7c h\u00ecnh h\u1ecdc \u0111\u01b0\u1ee3c ki\u1ec3m so\u00e1t tr\u1ef1c ti\u1ebfp tr\u00ean b\u1ec1 m\u1eb7t l\u00f2ng khu\u00f4n. T\u1ea1o v\u00e2n h\u00f3a h\u1ecdc che gi\u1ea5u c\u00e1c \u0111\u01b0\u1eddng ch\u1ea3y v\u00e0 b\u00f3ng v\u1ebft l\u00f5m \u0111\u1ed3ng th\u1eddi t\u0103ng c\u01b0\u1eddng \u0111\u1ed9 b\u00e1m x\u00fac gi\u00e1c tr\u00ean v\u1ecf thi\u1ebft b\u1ecb \u0111i\u1ec7n t\u1eed ti\u00eau d\u00f9ng.<\/p>\n<p><!-- Numbered List --><\/p>\n<p style=\"font-size: 18px;line-height: 1.8em;text-align: left;margin-bottom: 16px\">Ti\u00eau chu\u1ea9n ho\u00e0n thi\u1ec7n b\u1ec1 m\u1eb7t l\u00f2ng khu\u00f4n bao g\u1ed3m:<\/p>\n<ol style=\"font-size: 18px;line-height: 1.8em;margin-bottom: 24px;padding-left: 24px;list-style-type: decimal\">\n<li style=\"margin-bottom: 12px;text-align: left\"><strong>\u0111\u00e1nh b\u00f3ng kim c\u01b0\u01a1ng SPI A-1<\/strong>\u2014M\u00e0i r\u00e0 th\u00e9p \u0111\u00e3 t\u00f4i c\u1ee9ng b\u1eb1ng b\u1ed9t nh\u00e3o kim c\u01b0\u01a1ng 3 micron t\u1ea1o ra b\u1ec1 m\u1eb7t g\u01b0\u01a1ng quang h\u1ecdc b\u00f3ng cao.<\/li>\n<li style=\"margin-bottom: 12px;text-align: left\"><strong>t\u1ea1o v\u00e2n b\u1eb1ng xung \u0111i\u1ec7n VDI 3400<\/strong>\u2014Gia c\u00f4ng ph\u00f3ng \u0111i\u1ec7n t\u1ea1o ra c\u00e1c vi v\u00e2n nh\u00e1m m\u1edd \u0111\u01b0\u1ee3c ki\u1ec3m so\u00e1t t\u1eeb VDI 12 \u0111\u1ebfn VDI 36.<\/li>\n<li style=\"margin-bottom: 12px;text-align: left\"><strong>kh\u1eafc h\u00f3a h\u1ecdc Mold-Tech<\/strong>\u2014Kh\u1eafc axit t\u1ea1o ra c\u00e1c hoa v\u0103n da thu\u1ed9c, v\u00e2n g\u1ed7 ho\u1eb7c h\u00ecnh h\u1ecdc ph\u1ee9c t\u1ea1p tr\u1ef1c ti\u1ebfp tr\u00ean th\u00e9p l\u00f2ng khu\u00f4n.<\/li>\n<li style=\"margin-bottom: 12px;text-align: left\"><strong>B\u00f9 g\u00f3c tho\u00e1t khu\u00f4n<\/strong>\u2014T\u0103ng g\u00f3c tho\u00e1t khu\u00f4n theo ph\u01b0\u01a1ng th\u1eb3ng \u0111\u1ee9ng th\u00eam 1\u00b0 cho m\u1ed7i 0,025 mm \u0111\u1ed9 s\u00e2u v\u00e2n b\u1ec1 m\u1eb7t \u0111\u1ea3m b\u1ea3o th\u00e1o chi ti\u1ebft s\u1ea1ch m\u00e0 kh\u00f4ng b\u1ecb x\u01b0\u1edbc.<\/li>\n<\/ol>\n<\/section>\n<p><!-- Section 2 --><\/p>\n<section id=\"secondary-operations\" style=\"margin-bottom: 50px\">\n<h2 style=\"font-size: 28px;line-height: 1.5em;font-weight: bold;margin-top: 40px;margin-bottom: 24px;color: #111111;border-bottom: 1px solid #eaeaea;padding-bottom: 8px\">C\u00f4ng \u0111o\u1ea1n th\u1ee9 c\u1ea5p: In pad, in l\u1ee5a, kh\u1eafc laser &amp; s\u01a1n<\/h2>\n<p><img loading=\"lazy\" decoding=\"async\" class=\"alignnone size-full wp-image-2908\" src=\"https:\/\/www.jcinjectionmolding.com\/wp-content\/uploads\/2026\/08\/pad-printing-plastic-housing.webp\" alt=\"pad-printing-plastic-housing\" width=\"1376\" height=\"768\" srcset=\"https:\/\/www.jcinjectionmolding.com\/wp-content\/uploads\/2026\/08\/pad-printing-plastic-housing.webp 1376w, https:\/\/www.jcinjectionmolding.com\/wp-content\/uploads\/2026\/08\/pad-printing-plastic-housing-300x167.webp 300w, https:\/\/www.jcinjectionmolding.com\/wp-content\/uploads\/2026\/08\/pad-printing-plastic-housing-1024x572.webp 1024w, https:\/\/www.jcinjectionmolding.com\/wp-content\/uploads\/2026\/08\/pad-printing-plastic-housing-768x429.webp 768w\" sizes=\"auto, (max-width: 1376px) 100vw, 1376px\" \/><\/p>\n<p style=\"font-size: 18px;line-height: 1.8em;text-align: left;margin-bottom: 24px\">Secondary post-molding operations add functional symbols, branding logos, and protective coatings to molded <strong>ABS<\/strong> ho\u1eb7c <a href=\"https:\/\/www.jcinjectionmolding.com\/vi\/materials\/abs\/\"><strong>PC\/ABS<\/strong><\/a> parts. Utilizing multi-color <strong>in pad<\/strong> transfers silicone pad ink onto complex three-dimensional curves and textured surfaces seamlessly. Laser engraving burns away superficial paint coats on backlit buttons, creating precise, light-transmitting symbols. Automated liquid spray painting and UV hard-coat applications improve scratch resistance and chemical immunity on automotive interior trims.<\/p>\n<\/section>\n<p><!-- Section 3 --><\/p>\n<section id=\"emi-shielding\" style=\"margin-bottom: 50px\">\n<h2 style=\"font-size: 28px;line-height: 1.5em;font-weight: bold;margin-top: 40px;margin-bottom: 24px;color: #111111;border-bottom: 1px solid #eaeaea;padding-bottom: 8px\">Conductive EMI\/RFI Shielding Coatings for Electronic Enclosures<\/h2>\n<p><img loading=\"lazy\" decoding=\"async\" class=\"alignnone size-full wp-image-2905\" src=\"https:\/\/www.jcinjectionmolding.com\/wp-content\/uploads\/2026\/08\/conductive-emi-shielding-coating.webp\" alt=\"conductive-emi-shielding-coating\" width=\"1376\" height=\"768\" srcset=\"https:\/\/www.jcinjectionmolding.com\/wp-content\/uploads\/2026\/08\/conductive-emi-shielding-coating.webp 1376w, https:\/\/www.jcinjectionmolding.com\/wp-content\/uploads\/2026\/08\/conductive-emi-shielding-coating-300x167.webp 300w, https:\/\/www.jcinjectionmolding.com\/wp-content\/uploads\/2026\/08\/conductive-emi-shielding-coating-1024x572.webp 1024w, https:\/\/www.jcinjectionmolding.com\/wp-content\/uploads\/2026\/08\/conductive-emi-shielding-coating-768x429.webp 768w\" sizes=\"auto, (max-width: 1376px) 100vw, 1376px\" \/><\/p>\n<p style=\"font-size: 18px;line-height: 1.8em;text-align: left;margin-bottom: 24px\">Electronic enclosures housing sensitive circuit boards require protection against electromagnetic interference. Applying conductive <strong>EMI\/RFI shielding coatings<\/strong> inside plastic housings prevents stray radio frequency signals from disrupting internal electronics. Specialized spray painting utilizes nickel, copper, or silver conductive paint formulations to form a continuous grounding barrier. Achieving low surface resistance below 0.1 \u03a9\/sq meets global FCC and CE electromagnetic compatibility regulations for medical and aerospace devices.<\/p>\n<p><!-- Table 1: Finishing Comparison Table --><\/p>\n<div style=\"margin: 32px 0\">\n<table style=\"width: 100%;border-collapse: collapse;font-size: 16px;text-align: left;min-width: 600px\">\n<thead>\n<tr style=\"background-color: #f8f9fa;border-bottom: 2px solid #dee2e6\">\n<th style=\"padding: 16px;border: 1px solid #dee2e6;font-weight: 600;color: #111111\">Surface Finishing Method<\/th>\n<th style=\"padding: 16px;border: 1px solid #dee2e6;font-weight: 600;color: #111111\">Roughness \/ Thickness<\/th>\n<th style=\"padding: 16px;border: 1px solid #dee2e6;font-weight: 600;color: #111111\">Ch\u1ea5t n\u1ec1n t\u01b0\u01a1ng th\u00edch<\/th>\n<th style=\"padding: 16px;border: 1px solid #dee2e6;font-weight: 600;color: #111111\">Primary Aesthetic \/ Functional Benefit<\/th>\n<\/tr>\n<\/thead>\n<tbody>\n<tr style=\"border-bottom: 1px solid #dee2e6\">\n<td style=\"padding: 16px;border: 1px solid #dee2e6;color: #333333\">SPI A-1 Diamond Polish<\/td>\n<td style=\"padding: 16px;border: 1px solid #dee2e6;color: #333333\">Ra &lt; 0.012 \u03bcm<\/td>\n<td style=\"padding: 16px;border: 1px solid #dee2e6;color: #333333\">PC, PMMA, Optical Resins<\/td>\n<td style=\"padding: 16px;border: 1px solid #dee2e6;color: #333333\">High-gloss transparency for optical lenses &amp; light guides<\/td>\n<\/tr>\n<tr style=\"border-bottom: 1px solid #dee2e6\">\n<td style=\"padding: 16px;border: 1px solid #dee2e6;color: #333333\">VDI 24 Spark Texture<\/td>\n<td style=\"padding: 16px;border: 1px solid #dee2e6;color: #333333\">Ra = 1.6 \u03bcm<\/td>\n<td style=\"padding: 16px;border: 1px solid #dee2e6;color: #333333\">ABS, PC\/ABS, PP, PA66<\/td>\n<td style=\"padding: 16px;border: 1px solid #dee2e6;color: #333333\">Matte tactile finish masking sink marks &amp; scratches<\/td>\n<\/tr>\n<tr style=\"border-bottom: 1px solid #dee2e6\">\n<td style=\"padding: 16px;border: 1px solid #dee2e6;color: #333333\">Conductive Nickel Coating<\/td>\n<td style=\"padding: 16px;border: 1px solid #dee2e6;color: #333333\">25 &#8211; 50 \u03bcm dry film<\/td>\n<td style=\"padding: 16px;border: 1px solid #dee2e6;color: #333333\">ABS, PC\/ABS, PBT<\/td>\n<td style=\"padding: 16px;border: 1px solid #dee2e6;color: #333333\">EMI\/RFI shielding (&lt; 0.1 \u03a9\/sq) for electronic housings<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/div>\n<\/section>\n<p><!-- FAQ Section --><\/p>\n<section id=\"faq\" style=\"margin-bottom: 40px\">\n<h2 style=\"font-size: 28px;line-height: 1.5em;font-weight: bold;margin-top: 40px;margin-bottom: 24px;color: #111111;border-bottom: 1px solid #eaeaea;padding-bottom: 8px\">C\u00e1c c\u00e2u h\u1ecfi th\u01b0\u1eddng g\u1eb7p (FAQ)<\/h2>\n<p><img loading=\"lazy\" decoding=\"async\" class=\"alignnone size-full wp-image-2907\" src=\"https:\/\/www.jcinjectionmolding.com\/wp-content\/uploads\/2026\/08\/measuring-surface-roughness-ra.webp\" alt=\"measuring-surface-roughness-ra\" width=\"1376\" height=\"768\" srcset=\"https:\/\/www.jcinjectionmolding.com\/wp-content\/uploads\/2026\/08\/measuring-surface-roughness-ra.webp 1376w, https:\/\/www.jcinjectionmolding.com\/wp-content\/uploads\/2026\/08\/measuring-surface-roughness-ra-300x167.webp 300w, https:\/\/www.jcinjectionmolding.com\/wp-content\/uploads\/2026\/08\/measuring-surface-roughness-ra-1024x572.webp 1024w, https:\/\/www.jcinjectionmolding.com\/wp-content\/uploads\/2026\/08\/measuring-surface-roughness-ra-768x429.webp 768w\" sizes=\"auto, (max-width: 1376px) 100vw, 1376px\" \/><\/p>\n<div style=\"margin-bottom: 30px\">\n<h3 style=\"font-size: 22px;line-height: 1.5em;font-weight: bold;margin-top: 24px;margin-bottom: 12px;color: #111111\">What is the difference between SPI A-1 and VDI 24 surface finishes?<\/h3>\n<p style=\"font-size: 18px;line-height: 1.8em;text-align: left;margin-bottom: 24px\">SPI A-1 represents an optical diamond mirror finish polished to a smooth surface roughness Ra under 0.012 microns, ideal for transparent lenses. VDI 24 is a matte spark-erosion texture produced by electrical discharge machining, offering a medium tactile grip that masks cosmetic sink marks and scratch defects on opaque enclosures.<\/p>\n<\/div>\n<div style=\"margin-bottom: 30px\">\n<h3 style=\"font-size: 22px;line-height: 1.5em;font-weight: bold;margin-top: 24px;margin-bottom: 12px;color: #111111\">Why do textured mold cavities require larger draft angles than polished cavities?<\/h3>\n<p style=\"font-size: 18px;line-height: 1.8em;text-align: left;margin-bottom: 24px\">Textured cavity walls feature microscopic peaks and valleys that mechanically grip the shrinking plastic during cooling. Insufficient draft angles cause the plastic skin to drag against the textured steel during ejection, creating unsightly scuff marks. Adding 1\u00b0 of draft for every 0.025 mm of texture depth ensures smooth release without damaging the pattern.<\/p>\n<\/div>\n<div style=\"margin-bottom: 0\">\n<h3 style=\"font-size: 22px;line-height: 1.5em;font-weight: bold;margin-top: 24px;margin-bottom: 12px;color: #111111\">How do conductive spray coatings provide EMI shielding in plastic housings?<\/h3>\n<p style=\"font-size: 18px;line-height: 1.8em;text-align: left;margin-bottom: 24px\">Conductive spray coatings contain microscopic nickel, copper, or silver flakes suspended in a liquid binder. When sprayed onto the internal surfaces of a plastic enclosure, the metal particles form a continuous conductive grid. This metallic layer reflects and absorbs electromagnetic radiation, preventing high-frequency noise from interfering with delicate electronic components.<\/p>\n<\/div>\n<\/section>\n<\/article>","protected":false},"excerpt":{"rendered":"<p>Elevating plastic hardware aesthetics, tactile ergonomics, and electromagnetic performance requires comprehensive post-molding decoration and cavity surface conditioning. Standard raw molded plastic parts frequently display flow lines, parting line seams, or ejection pin marks that compromise visual quality. Applying specialized mold textures, diamond mirror polishes, conductive coatings, or multi-color pad printing transforms bare polymer parts into [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":2909,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[1],"tags":[],"class_list":["post-2903","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-blog"],"_links":{"self":[{"href":"https:\/\/www.jcinjectionmolding.com\/vi\/wp-json\/wp\/v2\/posts\/2903","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.jcinjectionmolding.com\/vi\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.jcinjectionmolding.com\/vi\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.jcinjectionmolding.com\/vi\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/www.jcinjectionmolding.com\/vi\/wp-json\/wp\/v2\/comments?post=2903"}],"version-history":[{"count":0,"href":"https:\/\/www.jcinjectionmolding.com\/vi\/wp-json\/wp\/v2\/posts\/2903\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.jcinjectionmolding.com\/vi\/wp-json\/wp\/v2\/media\/2909"}],"wp:attachment":[{"href":"https:\/\/www.jcinjectionmolding.com\/vi\/wp-json\/wp\/v2\/media?parent=2903"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.jcinjectionmolding.com\/vi\/wp-json\/wp\/v2\/categories?post=2903"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.jcinjectionmolding.com\/vi\/wp-json\/wp\/v2\/tags?post=2903"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}