Farecla G-SCUFF Paint Preparation PasteFarecla G Scuff Paint Preparation Paste 1L. G Scuff Preparation Paste is used for preparing a surface before painting to provide an even key for optimum paint adhesion. It minimises rogue scratches and its fast action formula cleans away all wax and grime. Abrades to approximately P1200. Its foaming action is a visible indication of cleaning power. G Scuff is non hazardous and non-irritant.