{"id":5888,"date":"2023-02-01T12:54:34","date_gmt":"2023-02-01T12:54:34","guid":{"rendered":"https:\/\/longchangchemical.com\/?p=5888"},"modified":"2026-04-28T10:42:14","modified_gmt":"2026-04-28T10:42:14","slug":"powder-coating-storage","status":"publish","type":"post","link":"https:\/\/longchangchemical.com\/fr\/powder-coating-storage\/","title":{"rendered":"Stockage du rev\u00eatement en poudre, environnement de construction, ph\u00e9nom\u00e8ne de perte de lumi\u00e8re et traitement"},"content":{"rendered":"<h1><strong>Stockage du rev\u00eatement en poudre, environnement de construction, ph\u00e9nom\u00e8ne de perte de lumi\u00e8re et traitement<\/strong><\/h1>\n<p><!-- lc-qa-start --><\/p>\n<p><strong>Quick answer:<\/strong> In most UV systems, photoinitiators are selected by balancing wavelength fit, through-cure, color control, and line speed. Buyers usually compare a blended package instead of one isolated product.<\/p>\n<p><!-- lc-qa-end --><\/p>\n<p>Le stockage des poudres a un impact important sur leur qualit\u00e9. Le stockage des poudres se fera g\u00e9n\u00e9ralement dans un endroit ventil\u00e9 et sec, et la temp\u00e9rature de l'espace de stockage ne doit pas d\u00e9passer 30 degr\u00e9s.<\/p>\n<p>&nbsp;<\/p>\n<p>Les diff\u00e9rentes vari\u00e9t\u00e9s de poudre ne peuvent pas \u00eatre plac\u00e9es ensemble pour \u00e9viter la pollution mutuelle. Diff\u00e9rents fabricants de poudre, dans la construction, la poudre doit \u00eatre recycl\u00e9e, c'est-\u00e0-dire qu'un lot utilis\u00e9 et ensuite le lot suivant, non utilis\u00e9 la poudre doit \u00eatre scell\u00e9e dans une bo\u00eete pour \u00e9viter la contamination.<\/p>\n<p>&nbsp;<\/p>\n<p>Environnement de la construction<\/p>\n<p>Les unit\u00e9s de construction de poudres ont des exigences diff\u00e9rentes en mati\u00e8re d'environnement, il y a des unit\u00e9s \u00e0 ciel ouvert et des unit\u00e9s ferm\u00e9es, il y a des ateliers de production \u00e0 travers le corps, il y en a plusieurs.<\/p>\n<p>&nbsp;<\/p>\n<p>L'environnement de construction de la poudre doit \u00eatre ind\u00e9pendant et \u00e9quip\u00e9 d'un dispositif de r\u00e9cup\u00e9ration de la poudre. La poudre non utilis\u00e9e ne peut pas \u00eatre plac\u00e9e dans la salle de pulv\u00e9risation. Chaque jour, avant et apr\u00e8s le travail, pulv\u00e9riser la pi\u00e8ce \u00e0 l'aide d'un fardage ou d'un aspirateur pour nettoyer le sol en profondeur. La concentration de poussi\u00e8re dans la salle de pulv\u00e9risation ne doit pas \u00eatre trop importante. Tout d'abord, ce n'est pas bon pour la sant\u00e9 humaine, et ensuite le point important est que la poudre dans un certain espace pour atteindre une certaine concentration produira une explosion, ce qui est tr\u00e8s dangereux. Les principaux composants de la poudre \u00e9tant des mat\u00e9riaux chimiques inflammables, la chambre de pulv\u00e9risation doit \u00eatre interdite au feu.<\/p>\n<p>&nbsp;<\/p>\n<p>Ph\u00e9nom\u00e8ne de perte de lumi\u00e8re des poudres et traitement<\/p>\n<p>(1) La poudre dans le four au-del\u00e0 de la dur\u00e9e et de la temp\u00e9rature sp\u00e9cifi\u00e9es est susceptible d'entra\u00eener une perte de lumi\u00e8re \u00e0 la surface. La temp\u00e9rature de la poudre de polyester \u00e9poxy est g\u00e9n\u00e9ralement constante et ne d\u00e9passe pas 190 degr\u00e9s. La temp\u00e9rature constante g\u00e9n\u00e9rale de la poudre de polyester pur ne d\u00e9passe pas 220 degr\u00e9s.<\/p>\n<p>&nbsp;<\/p>\n<p>Des mat\u00e9riaux diff\u00e9rents n\u00e9cessitent une \u00e9nergie thermique diff\u00e9rente, de sorte que le temps pass\u00e9 dans le four est diff\u00e9rent. Par exemple, le temps de placement dans le four d'un type d'aluminium, d'une plaque de fer mince, etc. ne d\u00e9passe g\u00e9n\u00e9ralement pas 15 \u00e0 20 minutes. Les grandes pi\u00e8ces m\u00e9talliques sont g\u00e9n\u00e9ralement plac\u00e9es dans le four pendant 30 \u00e0 60 minutes.<\/p>\n<p>&nbsp;<\/p>\n<p>(2) Dans la construction, pour r\u00e9duire les d\u00e9chets, la poudre recycl\u00e9e est ajout\u00e9e au nouveau m\u00e9lange de poudre, ce qui entra\u00eene souvent une perte de luminosit\u00e9 \u00e0 la surface de la pi\u00e8ce. La m\u00e9thode correcte consiste \u00e0 ajouter environ 3 kg de poudre (normale), mais ne doit g\u00e9n\u00e9ralement pas d\u00e9passer 5 kg, sous peine de perte de luminosit\u00e9.<\/p>\n<p>&nbsp;<\/p>\n<p>(3) la poudre est soumise \u00e0 une temp\u00e9rature \u00e9lev\u00e9e ou \u00e0 une surextrusion, ce qui entra\u00eene un ph\u00e9nom\u00e8ne de mottage. Cette situation entra\u00eene souvent une perte de luminosit\u00e9 de la poudre. Dans ce cas, il convient g\u00e9n\u00e9ralement d'\u00e9mietter la poudre \u00e0 l'aide d'un tamis, puis de la combiner avec la poudre non \u00e9miett\u00e9e, ce qui permet de r\u00e9soudre le probl\u00e8me.<\/p>\n<p>&nbsp;<\/p>\n<p>(4) Les poudres de diff\u00e9rents fabricants sont m\u00e9lang\u00e9es les unes avec les autres, en raison des interf\u00e9rences mutuelles, la poudre perd \u00e9galement de sa luminosit\u00e9. Si vous avez besoin d'une poudre d'un autre fabricant, vous devez utiliser un g\u00e9n\u00e9rateur \u00e9lectrostatique pour nettoyer le canon, le pistolet, le tube \u00e0 poudre et le milieu environnant, puis passer \u00e0 une autre poudre.<\/p>\n<p>&nbsp;<\/p>\n<p>(5) En r\u00e8gle g\u00e9n\u00e9rale, la poudre ne doit pas \u00eatre stock\u00e9e trop longtemps. Un stockage trop long modifie l'\u00e9clat, l'\u00e9clat g\u00e9n\u00e9ral de la poudre la plus \u00e9lev\u00e9e, la construction produit souvent un ph\u00e9nom\u00e8ne de perte de lumi\u00e8re. La poudre peu brillante, telle que le noir sans lumi\u00e8re, le gris sans lumi\u00e8re, etc., stock\u00e9e trop longtemps, est susceptible de pr\u00e9senter le ph\u00e9nom\u00e8ne d'ondulation du sable.<\/p>\n<p>&nbsp;<\/p>\n<p>(6) Poudre transparente et interf\u00e9rence avec d'autres poudres, dans la construction, tant que vous avez utilis\u00e9 de la poudre transparente, vous voulez changer les autres poudres, il faut que le pistolet, le canon d'alimentation en poudre et la chambre de pulv\u00e9risation soient bien nettoy\u00e9s.<\/p>\n<p><!-- lc-commercial-start --><\/p>\n<h2>A practical selection route for photoinitiator-related projects<\/h2>\n<p>When technical buyers or formulators screen photoinitiators, the most useful decision frame is usually cure quality plus application fit: which package cures reliably, keeps appearance acceptable, and still works under the lamp, film thickness, and substrate conditions of the actual process.<\/p>\n<ul>\n<li><strong>Match the package to the lamp first:<\/strong> mercury lamps, UV LEDs, and visible-light systems can rank the same photoinitiators very differently.<\/li>\n<li><strong>Check depth cure and surface cure separately:<\/strong> a film that feels dry on top can still be weak underneath.<\/li>\n<li><strong>Balance yellowing with reactivity:<\/strong> the strongest deep-cure route is not always the best commercial choice if color or migration risk becomes unacceptable.<\/li>\n<li><strong>Use the final formula as the benchmark:<\/strong> pigment load, monomer package, and film thickness can all change the apparent ranking of the same initiator.<\/li>\n<\/ul>\n<h3>Recommended product references<\/h3>\n<ul>\n<li><strong><a href=\"https:\/\/longchangchemical.com\/fr\/product\/photoinitiator-819-irgacure-819-cas-162881-26-7\/\">CHLUMINIT 819<\/a>:<\/strong> Useful when a formulation needs stronger absorption and deeper cure support.<\/li>\n<li><strong><a href=\"https:\/\/longchangchemical.com\/fr\/product\/irgacure-1173-cas-7473-98-5\/\">CHLUMINIT 1173<\/a>:<\/strong> A practical comparison point for classic short-wave UV initiation.<\/li>\n<li><strong><a href=\"https:\/\/longchangchemical.com\/fr\/product\/photoinitiator-itx-cas-5495-84-1\/\">CHLUMINIT ITX<\/a>:<\/strong> A useful long-wave support route in many printing-ink packages.<\/li>\n<li><strong><a href=\"https:\/\/longchangchemical.com\/fr\/product\/photoinitiator-cq\/\">CHLUMINIT CQ<\/a>:<\/strong> A direct reference for visible-light and color-sensitive curing discussions.<\/li>\n<\/ul>\n<h3>FAQ for buyers and formulators<\/h3>\n<p><strong>Why are blended photoinitiator packages so common?<\/strong><br \/>Because one product may control yellowing or lamp fit well while another improves cure depth or line-speed performance, so the full package is often stronger than any single grade.<\/p>\n<p><strong>Should incomplete cure always be solved by adding more initiator?<\/strong><br \/>Not automatically. The real limitation may be the lamp, film thickness, pigment shading, or the rest of the reactive system rather than simple under-dosage.<\/p>\n<p><!-- lc-commercial-end --><\/p>\n<h2><strong><b>Contactez-nous d\u00e8s maintenant !<\/b><\/strong><\/h2>\n<h4><strong><b>Si vous avez besoin de Price, veuillez indiquer vos coordonn\u00e9es dans le formulaire ci-dessous. Nous vous contacterons g\u00e9n\u00e9ralement dans les 24 heures. Vous pouvez \u00e9galement m'envoyer un courriel <span style=\"color: #00ccff;\"><a style=\"color: #00ccff;\" href=\"mailto:info@longchangchemical.com\">info@longchangchemical.com<\/a><\/span>\u00a0pendant les heures de travail ( 8:30 am to 6:00 pm UTC+8 Mon.~Sat. ) ou utilisez le chat en direct du site web pour obtenir une r\u00e9ponse rapide.<\/b><\/strong><\/h4>\n<p>&nbsp;<\/p>\n<table style=\"border-collapse: collapse; width: 435.77pt;\" border=\"0\" width=\"581\" cellspacing=\"0\" cellpadding=\"0\">\n<tbody>\n<tr style=\"height: 13.50pt;\">\n<td style=\"height: 13.50pt; width: 215.25pt;\" width=\"287\" height=\"18\"><a href=\"https:\/\/longchangchemical.com\/fr\/product\/photoinitiator-tpo-cas-75980-60-8\/\"><span style=\"color: #00ccff;\">Photoinitiateur TPO<\/span><\/a><\/td>\n<td style=\"width: 220.50pt;\" width=\"294\">CAS 75980-60-8<\/td>\n<\/tr>\n<tr style=\"height: 13.50pt;\">\n<td style=\"height: 13.50pt;\" height=\"18\"><a href=\"https:\/\/longchangchemical.com\/fr\/product\/cas-270586-78-2\/\"><span style=\"color: #00ccff;\">Photoinitiateur TMO<\/span><\/a><\/td>\n<td>CAS 270586-78-2<\/td>\n<\/tr>\n<tr style=\"height: 13.50pt;\">\n<td style=\"height: 13.50pt;\" height=\"18\"><a href=\"https:\/\/longchangchemical.com\/fr\/product\/photoinitiator-pd-01-cas-579-07-7\/\"><span style=\"color: #00ccff;\">Photoinitiateur PD-01<\/span><\/a><\/td>\n<td>CAS 579-07-7<\/td>\n<\/tr>\n<tr style=\"height: 13.50pt;\">\n<td style=\"height: 13.50pt;\" height=\"18\"><a href=\"https:\/\/longchangchemical.com\/fr\/product\/photoinitiator-pbz-cas-2128-93-0\/\"><span style=\"color: #00ccff;\">Photoinitiateur PBZ<\/span><\/a><\/td>\n<td>CAS 2128-93-0<\/td>\n<\/tr>\n<tr style=\"height: 13.50pt;\">\n<td style=\"height: 13.50pt;\" height=\"18\"><a href=\"https:\/\/longchangchemical.com\/fr\/product\/photoinitiator-oxe-02-cas-478556-66-0\/\"><span style=\"color: #00ccff;\">Photoinitiateur OXE-02<\/span><\/a><\/td>\n<td>CAS 478556-66-0<\/td>\n<\/tr>\n<tr style=\"height: 13.50pt;\">\n<td style=\"height: 13.50pt;\" height=\"18\"><a href=\"https:\/\/longchangchemical.com\/fr\/product\/photoinitiator-ombb\/\"><span style=\"color: #00ccff;\">Photoinitiateur OMBB<\/span><\/a><\/td>\n<td>CAS 606-28-0<\/td>\n<\/tr>\n<tr style=\"height: 13.50pt;\">\n<td style=\"height: 13.50pt;\" height=\"18\"><a href=\"https:\/\/longchangchemical.com\/fr\/product\/photoinitiator-mpbz-6012\/\"><span style=\"color: #00ccff;\">Photoinitiateur MPBZ (6012)<\/span><\/a><\/td>\n<td>CAS 86428-83-3<\/td>\n<\/tr>\n<tr style=\"height: 13.50pt;\">\n<td style=\"height: 13.50pt;\" height=\"18\"><a href=\"https:\/\/longchangchemical.com\/fr\/product\/photoinitiator-mbp-cas-134-84-9\/\"><span style=\"color: #00ccff;\">Photoinitiateur MBP<\/span><\/a><\/td>\n<td>CAS 134-84-9<\/td>\n<\/tr>\n<tr style=\"height: 13.50pt;\">\n<td style=\"height: 13.50pt;\" height=\"18\"><a href=\"https:\/\/longchangchemical.com\/fr\/product\/photoinitiator-mbf-cas-15206-55-0\/\"><span style=\"color: #00ccff;\">Photoinitiateur MBF<\/span><\/a><\/td>\n<td>CAS 15206-55-0<\/td>\n<\/tr>\n<tr style=\"height: 13.50pt;\">\n<td style=\"height: 13.50pt;\" height=\"18\"><a href=\"https:\/\/longchangchemical.com\/fr\/product\/photoinitiator-lap-cas-85073-19-4\/\"><span style=\"color: #00ccff;\">Photoinitiateur LAP<\/span><\/a><\/td>\n<td>CAS 85073-19-4<\/td>\n<\/tr>\n<tr style=\"height: 13.50pt;\">\n<td style=\"height: 13.50pt;\" height=\"18\"><a href=\"https:\/\/longchangchemical.com\/fr\/product\/photoinitiator-itx-cas-5495-84-1\/\"><span style=\"color: #00ccff;\">Photoinitiateur ITX<\/span><\/a><\/td>\n<td>CAS 5495-84-1<\/td>\n<\/tr>\n<tr style=\"height: 13.50pt;\">\n<td style=\"height: 13.50pt;\" height=\"18\"><a href=\"https:\/\/longchangchemical.com\/fr\/product\/photoinitiator-emk\/\"><span style=\"color: #00ccff;\">Photoinitiateur EMK<\/span><\/a><\/td>\n<td>CAS 90-93-7<\/td>\n<\/tr>\n<tr style=\"height: 13.50pt;\">\n<td style=\"height: 13.50pt;\" height=\"18\"><a href=\"https:\/\/longchangchemical.com\/fr\/product\/photoinitiator-eha-cas-21245-02-3\/\"><span style=\"color: #00ccff;\">Photoinitiateur EHA<\/span><\/a><\/td>\n<td>CAS 21245-02-3<\/td>\n<\/tr>\n<tr style=\"height: 13.50pt;\">\n<td style=\"height: 13.50pt;\" height=\"18\"><a href=\"https:\/\/longchangchemical.com\/fr\/product\/photoinitiator-edb-cas-10287-53-3\/\"><span style=\"color: #00ccff;\">Photo-initiateur EDB<\/span><\/a><\/td>\n<td>CAS 10287-53-3<\/td>\n<\/tr>\n<tr style=\"height: 13.50pt;\">\n<td style=\"height: 13.50pt;\" height=\"18\"><a href=\"https:\/\/longchangchemical.com\/fr\/product\/photoinitiator-detx-cas-82799-44-8\/\"><span style=\"color: #00ccff;\">Photoinitiateur DETX<\/span><\/a><\/td>\n<td>CAS 82799-44-8<\/td>\n<\/tr>\n<tr style=\"height: 13.50pt;\">\n<td style=\"height: 13.50pt;\" height=\"18\"><a href=\"https:\/\/longchangchemical.com\/fr\/product\/photoinitiator-cq\/\"><span style=\"color: #00ccff;\">Photoinitiateur CQ \/ Camphorquinone<\/span><\/a><\/td>\n<td>CAS 10373-78-1<\/td>\n<\/tr>\n<tr style=\"height: 13.50pt;\">\n<td style=\"height: 13.50pt;\" height=\"18\"><a href=\"https:\/\/longchangchemical.com\/fr\/product\/photoinitiator-cbp-cas-134-85-0\/\"><span style=\"color: #00ccff;\">Photoinitiateur CBP<\/span><\/a><\/td>\n<td>CAS 134-85-0<\/td>\n<\/tr>\n<tr style=\"height: 13.50pt;\">\n<td style=\"height: 13.50pt;\" height=\"18\"><a href=\"https:\/\/longchangchemical.com\/fr\/product\/photoinitiator-bp-cas-119-61-9\/\"><span style=\"color: #00ccff;\">Photo-initiateur BP \/ Benzoph\u00e9none<\/span><\/a><\/td>\n<td>CAS 119-61-9<\/td>\n<\/tr>\n<tr style=\"height: 13.50pt;\">\n<td style=\"height: 13.50pt;\" height=\"18\"><a href=\"https:\/\/longchangchemical.com\/fr\/product\/photoinitiator-bms\/\"><span style=\"color: #00ccff;\">Photoinitiateur BMS<\/span><\/a><\/td>\n<td>CAS 83846-85-9<\/td>\n<\/tr>\n<tr style=\"height: 13.50pt;\">\n<td style=\"height: 13.50pt;\" height=\"18\"><a href=\"https:\/\/longchangchemical.com\/fr\/product\/photoinitiator-938\/\"><span style=\"color: #00ccff;\">Photoinitiateur 938<\/span><\/a><\/td>\n<td>CAS 61358-25-6<\/td>\n<\/tr>\n<tr style=\"height: 13.50pt;\">\n<td style=\"height: 13.50pt;\" height=\"18\"><a href=\"https:\/\/longchangchemical.com\/fr\/product\/photoinitiator-937-cas-71786-70-4\/\"><span style=\"color: #00ccff;\">Photoinitiateur 937<\/span><\/a><\/td>\n<td>CAS 71786-70-4<\/td>\n<\/tr>\n<tr style=\"height: 13.50pt;\">\n<td style=\"height: 13.50pt;\" height=\"18\"><a href=\"https:\/\/longchangchemical.com\/fr\/product\/photoinitiator-819-dw\/\"><span style=\"color: #00ccff;\">Photo-initiateur 819 DW<\/span><\/a><\/td>\n<td>CAS 162881-26-7<\/td>\n<\/tr>\n<tr style=\"height: 13.50pt;\">\n<td style=\"height: 13.50pt;\" height=\"18\"><a href=\"https:\/\/longchangchemical.com\/fr\/product\/photoinitiator-819-irgacure-819-cas-162881-26-7\/\"><span style=\"color: #00ccff;\">Photoinitiateur 819<\/span><\/a><\/td>\n<td>CAS 162881-26-7<\/td>\n<\/tr>\n<tr style=\"height: 13.50pt;\">\n<td style=\"height: 13.50pt;\" height=\"18\"><a href=\"https:\/\/longchangchemical.com\/fr\/product\/photoinitiator-784-cas-125051-32-3\/\"><span style=\"color: #00ccff;\">Photoinitiateur 784<\/span><\/a><\/td>\n<td>CAS 125051-32-3<\/td>\n<\/tr>\n<tr style=\"height: 13.50pt;\">\n<td style=\"height: 13.50pt;\" height=\"18\"><a href=\"https:\/\/longchangchemical.com\/fr\/product\/photoinitiator-754-cas-211510-16-6-442536-99-4\/\"><span style=\"color: #00ccff;\">Photoinitiateur 754<\/span><\/a><\/td>\n<td>CAS 211510-16-6 442536-99-4<\/td>\n<\/tr>\n<tr style=\"height: 13.50pt;\">\n<td style=\"height: 13.50pt;\" height=\"18\"><a href=\"https:\/\/longchangchemical.com\/fr\/product\/photoinitiator-6993-cas-71449-78-0\/\"><span style=\"color: #00ccff;\">Photoinitiateur 6993<\/span><\/a><\/td>\n<td>CAS 71449-78-0<\/td>\n<\/tr>\n<tr style=\"height: 13.50pt;\">\n<td style=\"height: 13.50pt;\" height=\"18\"><a href=\"https:\/\/longchangchemical.com\/fr\/product\/photoinitiator-6976\/\"><span style=\"color: #00ccff;\">Photoinitiateur 6976<\/span><\/a><\/td>\n<td>CAS 71449-78-0 89452-37-9 108-32-7<\/td>\n<\/tr>\n<tr style=\"height: 13.50pt;\">\n<td style=\"height: 13.50pt;\" height=\"18\"><a href=\"https:\/\/longchangchemical.com\/fr\/product\/photoinitiator-379-cas-119344-86-4\/\"><span style=\"color: #00ccff;\">Photoinitiateur 379<\/span><\/a><\/td>\n<td>CAS 119344-86-4<\/td>\n<\/tr>\n<tr style=\"height: 13.50pt;\">\n<td style=\"height: 13.50pt;\" height=\"18\"><a href=\"https:\/\/longchangchemical.com\/fr\/product\/photoinitiator-369-cas-119313-12-1\/\"><span style=\"color: #00ccff;\">Photoinitiateur 369<\/span><\/a><\/td>\n<td>CAS 119313-12-1<\/td>\n<\/tr>\n<tr style=\"height: 13.50pt;\">\n<td style=\"height: 13.50pt;\" height=\"18\"><span style=\"color: #00ccff;\"><a style=\"color: #00ccff;\" href=\"https:\/\/longchangchemical.com\/fr\/product\/photoinitiator-160\/\">Photoinitiateur 160<\/a><\/span><\/td>\n<td>CAS 71868-15-0<\/td>\n<\/tr>\n<tr style=\"height: 13.50pt;\">\n<td style=\"height: 13.50pt;\" height=\"18\"><a href=\"https:\/\/longchangchemical.com\/fr\/product\/photoinitiator-1206\/\"><span style=\"color: #00ccff;\">Photoinitiateur 1206<\/span><\/a><\/td>\n<td><\/td>\n<\/tr>\n<tr style=\"height: 13.50pt;\">\n<td style=\"height: 13.50pt;\" height=\"18\"><a href=\"https:\/\/longchangchemical.com\/fr\/product\/irgacure-1173-cas-7473-98-5\/\"><span style=\"color: #00ccff;\">Photoinitiateur 1173<\/span><\/a><\/td>\n<td>CAS 7473-98-5<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<p>&nbsp;<\/p>\n<h2><\/h2>","protected":false},"excerpt":{"rendered":"<p>The storage of powders has a great impact on their quality. The storage of powder will generally be in a ventilated and dry, and the temperature of the storage space<\/p>","protected":false},"author":1,"featured_media":5889,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[114],"tags":[],"class_list":["post-5888","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-catalysts-chemical-auxiliary-agents"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v25.3.1 - https:\/\/yoast.com\/wordpress\/plugins\/seo\/ -->\n<title>Powder coating storage, construction environment, light loss phenomenon and treatment - Longchang Chemical<\/title>\n<meta name=\"description\" content=\"The storage of powders has a great impact on their quality. 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