The Impact Resistance tester is useful for mild abused products inoffices, households or labs after years of normal use. It is useful forchecking resistance to impact surface damage and penetration for constructionmaterials viz. plastic, fiberglass, metal sheet, resin and plywood. PrestoâsImpact Resistance Tester is used for direct testing on plating and coating tocheck the crack formation, break resistance/adhesion and flexibility. A hump isformed in the metal sheet by a hemispherical falling weight. The coating can beeither outside or inside the hump. The force of waft can be varied by usingdifferent dropping weights or different heights. The instrument is used mainlyfor mildly abused products in offices, households or labs after years of normaluse.