Dura Block 1/3 block 1-1/2 H X2-5/8 W X 5-1/2 L

Q: What kid of sand paper do I use with these blocks? A:Use 2-1/2″ wide Adhesive backed paper such as our 87′ rolls 31370 to 31377 Q: What do I need guide coat for? A: Applying guide coat will show you the highs and lows as you sand. It will make it easier to identify where you need to take down high spots or add filler to low spots.