SEM High Build Primer for Parts 42003 (Black)

  • Sale
  • Regular price $26.00
Shipping calculated at checkout.


High-Build Primer Surfacer is a flexible acrylic coating for priming steel, aluminum, urethane, fiberglass and plastics.   Black. 20 oz.  Useful if you have stripped a frame or part to steel or are adding a fabricated part, especially raw aluminum.

  • Provides superior adhesion
  • Excellent filling properties
  • Works on multiple substrates, including metal and plastic
  • Easy to sand
  • Topcoat with most refinish material

Do I Need Another Product With This?

  • Is there good paint on it but you just want to paint over? No. No primer is needed.  You can use a scuff pad, wipe that clean, and then lay down your base coat.
  • Is it bare metal? Yes. You will need SEM Self Etching primer first. The self-etching primer bonds to steel and aluminum and you shoot any other primer over it. You can buy the SEM Self-etching primer in a bundle with the Flex and save $4.

Paint products are shipped only with in the US and sent by UPS ground.