SEM 42003 Black High Build Primer - 16 oz.

Nice primer for the money

This is one of the best primers I've ever used in a spray can. It has great bonding to any surface material, awesome build up properties to level off those small scratches, is self leveling and Sands beautifully wet or dry. What I like about the black is you can see very easily where you missed sanding before you start painting. A lot easier than White or Grey primers to notice. I used it under a silver metallic on aluminum rims and it covered perfect. Consider I've also used 2K primer in a can and would take this over that whenever possible. Did an especially nice job on plastic to fill the deeper scratches. SEM makes a great product, worth every penny of extra money.

I tested 4 types of primer filler and this is the only brand that did not cause cure inhibition on the platinum-cure silicone molds. It works well in light coats and dries extremely fast. The consistency is good in light coats, this is important. Heavy coats cause the filler to foam and the finish will show small air bubbles when sanded. This only happens if the coat is sprayed on too fast and heavy.

This primer is EXCELLENT! I use it to prime small metal parts in my auto restoration shop. It has a high build quality and is easy to sand. It dries quickly and the coverage is great! Buy this product!!

The primer is very good; dries quickly covers and fills well, sands well. Unfortunately, 2/3 cans I purchased I couldn't use as the nozzles kept clogging. I kept cleaning them but would get barely 1-2 seconds of spray before they blocked again. I tried swapping nozzles thinking maybe it was just a nozzle issue but it was not. The other can I used completely with no nozzle blockage. Ended up having to use a different primer that I picked up locally which wasn't as good but it did come out of the can to finish the job.