blackjack BLACK DRY POWDER GUIDE COAT KIT 200 GRAMS 98% Pure Graphite Micro fine powder. No unhealthy additives like talc,silica,soot or lead Safe for All Paint Systems.

Works as described. Will buy again. Ive used this product when sanding primer and filler and both dry and wet sanding. Works great everytime

It also works with wet sanding

Works well finds all if any imperfections

With this I do not have to wait 20 minutes for the paint to dry, speed up the process. to get the panel in paint.

This stuff works great, easily as good as the 3M guide coat but you get a whole lot more for less money. Apply with the applicator in a back and forth or circular motion until your filler or primer is darkened, then block sand and you will see where your high spots and low spots and what needs more work. It's great for showing you scratched and pinholes you may have missed also.

The product is fine but its the case that I dont like. It does not seal by design. So you have to put the whole deal in a lock tite tupperware case. This case has holes on top so the product disperses on the foam applicater so you will lose lots of product if it tips or tilts over.

Product is useless for color/clear coat wet sanding.It is bearly visible if using grey primer...i bought it to support usa products but I'll never buy it again...i ended up tossing what was left.

Gums up with 320 grit dry.Doesn't gum up with 320 grit wet sanding.Once you remove sticker on top you will have to be carefully of how you store it for later.Other than that it works.