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不銹鋼304手噴PU掉漆 金屬處理劑耐百格 附著力4B
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2016/12/22

現(xiàn)有一批不繡鋼產(chǎn)品噴PU,百格掉漆,附著力達(dá)不到理想中的效果,要求耐百格等測試,附著力必須達(dá)到4B。

操作一:金屬處理劑兌甲苯1:5開稀,素材表面用白電油清潔干凈。

操作二:噴涂本品膜厚約3-5UM,60-70度烘烤5分鐘,噴PU。

操作三:百格刀在表面劃劃10X10個1mm*1mm的小網(wǎng)格,每條劃線深及素材;用粘附力350 g/cm2~400g/cm2的膠帶(3M 610號膠紙或等同)進(jìn)行3次百格測試。

金屬處理劑是針對金屬底材與油漆性能所研發(fā)的一款底水,操作時不恰當(dāng)或者外部環(huán)境因素等,都會引起涂層附著不良,這時可使用金屬處理劑噴涂打底,此工藝簡單,方便,而且附著力可達(dá)到4B以上,無需擔(dān)心假性附著。具體操作可參考:《鋅合金噴烤漆假性附著解決方案 JS-630金屬處理劑


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