Description Cromax 131SR 1K Acrylic Primer Surfacer Grey 4LT 1K primer Colour: grey Composition based on modified acrylic resin. Very fast drying Very easy sandability Good filling properties and good adhesion Can be tinted up to 10 % maximum with AM Centari MasterTints Ideal spot and panel repair primer Recommended to repair thermoplastic acrylic finishes Substrates OEM finishes, including thermoplastic acrylic finishes Cured repaired finishes Axalta wash primers