香港大寶集團金耐寶汽車專用原子灰產品說明
產品用途及特性Application&characteristic：
金耐寶汽車專用原子灰產品是我公司針對汽車原廠制造，整車涂裝，大面積修補等作業而設計的專用原子灰，具有涂刮性能好，可操作時間長，良好的耐溫變性能、優異的附著力和彈性，能耐一定的烘烤性。用于中涂前，底材凹坑、針縮孔、裂紋和小焊縫等缺陷的填平與修飾，滿足面漆前底材表面的平整、平滑。
This product is specially designed for automobile factory manufacture, whole-painting, large surface repair. Good apply property, outstanding adhesion & flexibility, excellent temperature variation resistance, long handling time. It is used for the filling and leveling up as well as decoration of the deficiencies such as sand holes, shrink holes and cracks on the surface of polyester putty before closing the undercoat in the painting dressing of cars, so as to strengthen the flatness and smoothness of the surface of polyester putty.
Scope of construction:It can be used in iron panel,steel plate,aluminium plateandon any painted metallic surface.
金耐寶汽車專用原子灰主要技術指標：
項 目 指  標 試驗方法
柔韌性（mm） 50 GB/T1748
耐沖擊性（kg?cm） ≥25 GB/T1732
耐熱性（140℃烘烤1h） 無鼓泡、無開裂 GB/T1735
附著力 一級 彎曲法
耐溫變性（三個循環） 無鼓泡，無開裂 目測
打磨性 易打磨，出粉明顯 手感
注：耐溫變-40℃1h—常溫1h—120℃1h為一循環
Main performance indexes: