VR-20 forms a very slight, non-greasy and practically invisible film on the treated surface. It is usually harmless to subsequent processing (e.g. paint) and can normally be allowed to remain there. However, if necessary, it can be removed by a simple water rinse.
VR-20 will give protection against ‘flash rusting’, when added into the ‘wet blasting’ water.
VR-20 contains buffer salts to maintain the correct pH value of 9.5 and can itself be used as a mild detergent. Lightly soiled articles can be cleaned in a solution of between 2%-10% of VR-20 per litre of water at 70-80 0C and dried without further rinsing to give a rust resistant product. VR-20 prevents rust during the rinsing and drying of steel articles after they have been cleaned.