This is a GLA176-72/LT 1K Waterbourne Primer Sur. This is a 1K Primer Filler, dark grey, water thinnable. Offers excellent sandability. This reduces sanding material consumption & cuts sanding times. Can be baked, air-dried or cured with infra-red lamps. That makes it especially well-suited for repairing cosmetic damage. Is economical, has a potlife of four weeks.