SEM High Build Primer for Parts 42003 (Black)
SEM High Build Primer for Parts 42003 (Black)
SEM High Build Primer for Parts 42003 (Black)
SEM High Build Primer for Parts 42003 (Black)

SEM High Build Primer for Parts 42003 (Black)

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  • $26.00
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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.