Indestructible 700-155-003 Rockhard Chromate Primer已在航空航天工业中服务40多年。 尽管一般的趋势是远离铬酸盐，但该行业没有发现任何能击败该底漆和相关面漆体系的防腐性能的。 700-155-003适用于镁合金，钢，铝和其他金属。 通常作为多涂层系统的一部分与其他Rockhard Stoving产品一起使用。Rockhard Zinc Chromate Primer has had 40+ years of service in the Aerospace Industry. Although the trend generally is away from Chromates, this industry has found nothing to beat the anti-corrosive properties of this primer and associate topcoat system. 700-155-003 is suitable for use on Magnesium alloys, Steel, Aluminium and other metals. Usually used in conjunction with other Rockhard Stoving products, as part of a multi-coat system.