{"id":5599,"date":"2026-04-21T09:46:36","date_gmt":"2026-04-21T01:46:36","guid":{"rendered":"https:\/\/txjpcba.com\/?p=5599"},"modified":"2026-04-21T09:46:36","modified_gmt":"2026-04-21T01:46:36","slug":"how-to-apply-humiseal-conformal-coating","status":"publish","type":"post","link":"https:\/\/txjpcba.com\/zh\/how-to-apply-humiseal-conformal-coating\/","title":{"rendered":"How to apply HumiSeal conformal coating?"},"content":{"rendered":"<h2 data-start=\"0\" data-end=\"43\"><strong data-start=\"0\" data-end=\"43\">Apply HumiSeal conformal coating<\/strong><\/h2>\n<p data-start=\"45\" data-end=\"366\">Applying <strong data-start=\"54\" data-end=\"84\">HumiSeal conformal coating<\/strong>, produced by <span class=\"hover:entity-accent entity-underline inline cursor-pointer align-baseline\"><span class=\"whitespace-normal\">Chase Corporation<\/span><\/span>, requires controlled processes to ensure proper protection, adhesion, and reliability. In <strong data-start=\"226\" data-end=\"242\">PCB \u7d44\u88dd<\/strong>, <strong data-start=\"244\" data-end=\"260\">SMT \u7d44\u88dd<\/strong>, \u4ee5\u53ca <strong data-start=\"266\" data-end=\"290\">\u4ea4\u9470\u5319 PCB \u7d44\u88dd<\/strong>, correct application is critical to achieve consistent coating performance.<\/p>\n<figure id=\"attachment_5600\" aria-describedby=\"caption-attachment-5600\" style=\"width: 800px\" class=\"wp-caption aligncenter\"><img fetchpriority=\"high\" decoding=\"async\" class=\"size-full wp-image-5600\" src=\"https:\/\/txjpcba.com\/wp-content\/uploads\/2026\/04\/How-to-apply-HumiSeal-conformal-coating.jpg\" alt=\"How to apply HumiSeal conformal coating\" width=\"800\" height=\"597\" srcset=\"https:\/\/txjpcba.com\/wp-content\/uploads\/2026\/04\/How-to-apply-HumiSeal-conformal-coating.jpg 800w, https:\/\/txjpcba.com\/wp-content\/uploads\/2026\/04\/How-to-apply-HumiSeal-conformal-coating-300x224.jpg 300w, https:\/\/txjpcba.com\/wp-content\/uploads\/2026\/04\/How-to-apply-HumiSeal-conformal-coating-768x573.jpg 768w, https:\/\/txjpcba.com\/wp-content\/uploads\/2026\/04\/How-to-apply-HumiSeal-conformal-coating-16x12.jpg 16w\" sizes=\"(max-width: 800px) 100vw, 800px\" \/><figcaption id=\"caption-attachment-5600\" class=\"wp-caption-text\">How to apply HumiSeal conformal coating<\/figcaption><\/figure>\n<p data-start=\"368\" data-end=\"491\"><strong data-start=\"368\" data-end=\"413\">Surface preparation (most important step)<\/strong><br data-start=\"413\" data-end=\"416\" \/>\u7533\u8acb\u524d <a href=\"https:\/\/txjpcba.com\/zh\/%e4%bf%9d%e5%bd%a2%e5%a1%97%e5%b1%a4\/\"><strong data-start=\"432\" data-end=\"453\">\u4fdd\u5f62\u5857\u5c64<\/strong><\/a>, the PCB must be thoroughly prepared:<\/p>\n<ul data-start=\"493\" data-end=\"671\">\n<li data-section-id=\"1npesim\" data-start=\"493\" data-end=\"547\">Remove flux residues, oils, dust, and contaminants<\/li>\n<li data-section-id=\"ecs1up\" data-start=\"548\" data-end=\"632\">Use approved cleaning methods (solvent cleaning, ultrasonic, or deionized water)<\/li>\n<li data-section-id=\"1lgir88\" data-start=\"633\" data-end=\"671\">Ensure the board is completely dry<\/li>\n<\/ul>\n<p data-start=\"673\" data-end=\"752\">Poor cleaning is one of the main causes of coating defects in <strong data-start=\"735\" data-end=\"751\">PCB \u7d44\u88dd<\/strong>.<\/p>\n<p data-start=\"754\" data-end=\"825\"><strong data-start=\"754\" data-end=\"789\">Masking (protect no-coat areas)<\/strong><br data-start=\"789\" data-end=\"792\" \/>Certain areas must not be coated:<\/p>\n<ul data-start=\"827\" data-end=\"903\">\n<li data-section-id=\"1m91ked\" data-start=\"827\" data-end=\"853\">\u9023\u63a5\u5668\u548c\u63d2\u5ea7<\/li>\n<li data-section-id=\"1ebxk1\" data-start=\"854\" data-end=\"869\">Test points<\/li>\n<li data-section-id=\"11xzfmp\" data-start=\"870\" data-end=\"903\">Switches and contact surfaces<\/li>\n<\/ul>\n<p data-start=\"905\" data-end=\"991\">Use tapes, boots, or masking materials to protect these areas during <strong data-start=\"974\" data-end=\"990\">SMT \u7d44\u88dd<\/strong>.<\/p>\n<p data-start=\"993\" data-end=\"1026\"><strong data-start=\"993\" data-end=\"1026\">Choose the application method<\/strong><\/p>\n<p data-start=\"1028\" data-end=\"1114\">HumiSeal coatings can be applied using several methods depending on production volume:<\/p>\n<p data-start=\"1116\" data-end=\"1157\"><strong data-start=\"1116\" data-end=\"1155\">Spray coating (manual or automated)<\/strong><\/p>\n<ul data-start=\"1158\" data-end=\"1273\">\n<li data-section-id=\"1v8xkmv\" data-start=\"1158\" data-end=\"1200\">Most common method in <a href=\"https:\/\/txjpcba.com\/zh\/pcb-%e8%a3%9d%e9%85%8d\/\"><strong data-start=\"1182\" data-end=\"1198\">PCB \u7d44\u88dd<\/strong><\/a><\/li>\n<li data-section-id=\"1ploabm\" data-start=\"1201\" data-end=\"1230\">Provides uniform coverage<\/li>\n<li data-section-id=\"7b5ws9\" data-start=\"1231\" data-end=\"1273\">Suitable for both low and high volumes<\/li>\n<\/ul>\n<p data-start=\"1275\" data-end=\"1310\"><strong data-start=\"1275\" data-end=\"1308\">\u9078\u64c7\u6027\u5857\u5c64\uff08\u81ea\u52d5\u5316\uff09<\/strong><\/p>\n<ul data-start=\"1311\" data-end=\"1446\">\n<li data-section-id=\"1nz0far\" data-start=\"1311\" data-end=\"1357\">High precision using programmable machines<\/li>\n<li data-section-id=\"12ncfal\" data-start=\"1358\" data-end=\"1413\">Ideal for <strong data-start=\"1370\" data-end=\"1394\">\u4ea4\u9470\u5319 PCB \u7d44\u88dd<\/strong> \u751f\u7522\u7dda<\/li>\n<li data-section-id=\"1f3rpmr\" data-start=\"1414\" data-end=\"1446\">\u964d\u4f4e\u906e\u853d\u9700\u6c42<\/li>\n<\/ul>\n<p data-start=\"1448\" data-end=\"1465\"><strong data-start=\"1448\" data-end=\"1463\">\u6d78\u5857<\/strong><\/p>\n<ul data-start=\"1466\" data-end=\"1563\">\n<li data-section-id=\"isgqjh\" data-start=\"1466\" data-end=\"1503\">PCB is immersed in coating liquid<\/li>\n<li data-section-id=\"93xwv0\" data-start=\"1504\" data-end=\"1529\">Ensures full coverage<\/li>\n<li data-section-id=\"4qjjwg\" data-start=\"1530\" data-end=\"1563\">May result in thicker coating<\/li>\n<\/ul>\n<p data-start=\"1565\" data-end=\"1584\"><strong data-start=\"1565\" data-end=\"1582\">\u5237\u5857<\/strong><\/p>\n<ul data-start=\"1585\" data-end=\"1664\">\n<li data-section-id=\"84yolm\" data-start=\"1585\" data-end=\"1621\">Used for small batches or rework<\/li>\n<li data-section-id=\"1vlihig\" data-start=\"1622\" data-end=\"1664\">Less consistent than automated methods<\/li>\n<\/ul>\n<p data-start=\"1666\" data-end=\"1695\"><strong data-start=\"1666\" data-end=\"1695\">\u63a7\u5236\u5857\u5c64\u539a\u5ea6<\/strong><\/p>\n<p data-start=\"1697\" data-end=\"1744\">Maintain proper thickness (typically 25\u201375 \u00b5m):<\/p>\n<ul data-start=\"1746\" data-end=\"1844\">\n<li data-section-id=\"15nuh1p\" data-start=\"1746\" data-end=\"1790\">Avoid too thin (insufficient protection)<\/li>\n<li data-section-id=\"8f6ow8\" data-start=\"1791\" data-end=\"1844\">Avoid too thick (risk of cracking or heat issues)<\/li>\n<\/ul>\n<p data-start=\"1846\" data-end=\"1920\">Thickness control is essential for consistent quality in <a href=\"https:\/\/txjpcba.com\/zh\/smt-%e7%b5%84%e8%a3%9d%e6%9c%8d%e5%8b%99\/\"><strong data-start=\"1903\" data-end=\"1919\">SMT \u7d44\u88dd<\/strong><\/a>.<\/p>\n<p data-start=\"1922\" data-end=\"1940\"><strong data-start=\"1922\" data-end=\"1940\">\u56fa\u5316\u904e\u7a0b<\/strong><\/p>\n<p data-start=\"1942\" data-end=\"1987\">After application, the coating must be cured:<\/p>\n<ul data-start=\"1989\" data-end=\"2134\">\n<li data-section-id=\"1utugq7\" data-start=\"1989\" data-end=\"2037\"><strong data-start=\"1991\" data-end=\"2005\">\u7a7a\u6c23\u4e7e\u71e5<\/strong> (common for acrylic coatings)<\/li>\n<li data-section-id=\"swp17g\" data-start=\"2038\" data-end=\"2081\"><strong data-start=\"2040\" data-end=\"2055\">\u71b1\u56fa\u5316<\/strong> (for urethane or epoxy)<\/li>\n<li data-section-id=\"a7o9fh\" data-start=\"2082\" data-end=\"2134\"><strong data-start=\"2084\" data-end=\"2097\">UV \u56fa\u5316<\/strong> (for UV-curable HumiSeal coatings)<\/li>\n<\/ul>\n<p data-start=\"2136\" data-end=\"2218\">Follow manufacturer specifications for time and temperature to ensure full curing.<\/p>\n<p data-start=\"2220\" data-end=\"2254\"><strong data-start=\"2220\" data-end=\"2254\">\u6aa2\u9a57\u8207\u54c1\u8cea\u63a7\u5236<\/strong><\/p>\n<p data-start=\"2256\" data-end=\"2290\">After curing, inspect the coating:<\/p>\n<ul data-start=\"2292\" data-end=\"2441\">\n<li data-section-id=\"d8s4gr\" data-start=\"2292\" data-end=\"2353\">Use UV light to verify coverage (if UV tracer is present)<\/li>\n<li data-section-id=\"1q1v8bn\" data-start=\"2354\" data-end=\"2399\">Check for bubbles, voids, or missed areas<\/li>\n<li data-section-id=\"bonlw4\" data-start=\"2400\" data-end=\"2441\">Ensure no overcoating on masked areas<\/li>\n<\/ul>\n<p data-start=\"2443\" data-end=\"2506\">Inspection ensures coating quality in <a href=\"https:\/\/txjpcba.com\/zh\/%e4%ba%a4%e9%91%b0%e5%8c%99-pcb-%e8%a3%9d%e9%85%8d\/\"><strong data-start=\"2481\" data-end=\"2505\">\u4ea4\u9470\u5319 PCB \u7d44\u88dd<\/strong><\/a>.<\/p>\n<p data-start=\"2508\" data-end=\"2526\"><strong data-start=\"2508\" data-end=\"2526\">\u6700\u4f73\u5be6\u8e10<\/strong><\/p>\n<ul data-start=\"2528\" data-end=\"2701\">\n<li data-section-id=\"npr140\" data-start=\"2528\" data-end=\"2566\">Maintain clean working environment<\/li>\n<li data-section-id=\"11dym5k\" data-start=\"2567\" data-end=\"2622\">Control humidity and temperature during application<\/li>\n<li data-section-id=\"n4nxoh\" data-start=\"2623\" data-end=\"2659\">Use proper equipment calibration<\/li>\n<li data-section-id=\"rd68vg\" data-start=\"2660\" data-end=\"2701\">Train operators on coating techniques<\/li>\n<\/ul>\n<p data-start=\"2703\" data-end=\"2717\"><strong data-start=\"2703\" data-end=\"2717\">\u7e3d\u7d50<\/strong><\/p>\n<p data-start=\"2719\" data-end=\"3044\">Applying HumiSeal conformal coating involves careful surface preparation, proper masking, controlled application, and thorough curing. In <strong data-start=\"2857\" data-end=\"2873\">PCB \u7d44\u88dd<\/strong>, <strong data-start=\"2875\" data-end=\"2891\">SMT \u7d44\u88dd<\/strong>, \u4ee5\u53ca <strong data-start=\"2897\" data-end=\"2921\">\u4ea4\u9470\u5319 PCB \u7d44\u88dd<\/strong>, following these steps ensures optimal protection, improved reliability, and long-term performance of electronic products.<\/p>\n<p data-start=\"2719\" data-end=\"3044\">We support HumiSeal and equivalent conformal coating solutions for your PCBA projects.<\/p>\n<div style=\"background: #f8f8f8; border: 1px solid #e5e5e5; padding: 25px; margin-top: 30px; border-radius: 6px;\">\n<div style=\"text-align: center;\">\n<h3 style=\"margin-bottom: 10px; font-size: 22px;\">\u53d6\u5f97\u4fdd\u5f62\u5857\u5c64\u5831\u50f9<\/h3>\n<p style=\"font-size: 15px; color: #555; margin-bottom: 15px;\">\u4f7f\u7528\u6211\u5011\u7684\u5857\u5c64\u89e3\u6c7a\u65b9\u6848\uff0c\u78ba\u4fdd\u60a8\u7684 PCB \u9577\u671f\u53ef\u9760\u3002\u5f9e\u9019\u88e1\u958b\u59cb.<br \/>\n\u5c07\u60a8\u7684\u9700\u6c42\u50b3\u9001\u7d66\u6211\u5011\uff0c\u4e26\u7372\u5f97\u6211\u5011\u5de5\u7a0b\u5718\u968a\u7684\u5feb\u901f\u56de\u61c9\u3002.<\/p>\n<p style=\"font-size: 14px; color: #333; margin-bottom: 20px;\">24 \u5c0f\u6642\u56de\u61c9 \u2714 \u5de5\u7a0b\u652f\u63f4 \u2714 \u5c0f\u578b\u8207\u5927\u91cf\u751f\u7522<\/p>\n<\/div>\n<div style=\"text-align: left;\"><style id=\"wpforms-css-vars-2237\">\n\t\t\t\t#wpforms-2237 {\n\t\t\t\t--wpforms-field-size-input-height: 43px;\n--wpforms-field-size-input-spacing: 15px;\n--wpforms-field-size-font-size: 16px;\n--wpforms-field-size-line-height: 19px;\n--wpforms-field-size-padding-h: 14px;\n--wpforms-field-size-checkbox-size: 16px;\n--wpforms-field-size-sublabel-spacing: 5px;\n--wpforms-field-size-icon-size: 1;\n--wpforms-label-size-font-size: 16px;\n--wpforms-label-size-line-height: 19px;\n--wpforms-label-size-sublabel-font-size: 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data-field-id=\"10\"><fieldset><legend class=\"wpforms-field-label\">\u9996\u9078\u6750\u6599<\/legend><ul id=\"wpforms-2237-field_10\"><li class=\"choice-1 depth-1\"><input type=\"radio\" id=\"wpforms-2237-field_10_1\" name=\"wpforms[fields][10]\" value=\"Acrylic (AR)\" aria-errormessage=\"wpforms-2237-field_10_1-error\"  ><label class=\"wpforms-field-label-inline\" for=\"wpforms-2237-field_10_1\">\u58d3\u514b\u529b (AR)<\/label><\/li><li class=\"choice-2 depth-1\"><input type=\"radio\" id=\"wpforms-2237-field_10_2\" name=\"wpforms[fields][10]\" value=\"Silicone (SR)\" aria-errormessage=\"wpforms-2237-field_10_2-error\"  ><label class=\"wpforms-field-label-inline\" for=\"wpforms-2237-field_10_2\">\u77fd\u81a0 (SR)<\/label><\/li><li class=\"choice-3 depth-1\"><input type=\"radio\" id=\"wpforms-2237-field_10_3\" name=\"wpforms[fields][10]\" value=\"Polyurethane (UR)\" aria-errormessage=\"wpforms-2237-field_10_3-error\"  ><label class=\"wpforms-field-label-inline\" 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