FAQ PORC-a-FILLER PORCELAIN CHIP FILLER 1. WHAT IS THE PURPOSE OF THE PORC-a-FILLER? PORC-a-FILLER IS A PORCELAIN CHIP FILLER USED IN CONJUNCTION WITH PORC-a-FIX PORCELAIN TOUCH UP GLAZE. ITS PURPOSE IS TO FILL IN THE LARGER DAMAGES (LARGER THAN A QUARTER OR DOWN TO THE CAST IRON) PRIOR TO APPLYING PORC-a-FIX. 2. HOW LONG DOES IT TAKE PORC-a-FILLER TO DRY? YOU SHOULD ALLOW 24 HOURS DRYING TIME. 3. WHAT COLORS ARE AVAILABLE IN PORC-a-FILLER? PORC-a-FILLER IS NOT AVAILABLE IN COLORS. IT MUST BE USED WITH PORC-a-FIX, WHICH IS THE TOP COAT. 4. DOES PORC-a-FILLER COVER RUST? YES, THOUGH IT IS RECOMMENDED THAT RUST BE REMOVED PRIOR TO USING PORC-a-FILLER. RUST WILL COME BACK IF NOT COMPLETELY REMOVED.  A RUST NEUTRALIZER (OBTAINABLE AT PAINT STORES) CAN BE USED TO REMOVE THE RUST.