Indestructible 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。 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. 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.