Is Interior Primer Ok For Exterior Molding?


Yes, there is no issue using exterior primer inside the home. However, exterior primer will be more expensive and add functionality that may not be needed inside the home like mildew, temperature, and weather resistance. If you want to find the best Exterior Primer, click here.


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Frequently Asked Questions

Can you use interior paint on exterior trim?

Wondering can you use interior paint outside? Although the short answer is yes, it's not recommended. Interior paint isn't designed to withstand rain, snow, wind, UV, mildew, or temperature extremes. It has less pigment and binding resins than outdoor paints, and the finish is too porous .

What is the best primer for exterior trim?

The Top 7 Primers for Exteriors

  1. KILZ Exterior Latex Primer. KILZ General Purpose Exterior Latex Primer/Sealer,... ...
  2. Diamond Brite Paint Oil Primer. ...
  3. Rust-Oleum 286258 Primer. ...
  4. INSL-X Acrylic Water Sealer Primer. ...
  5. RTG 3014 Exterior Primer. ...
  6. Prestige Paints Exterior Paint and Primer. ...
  7. Duckback Peeling Paint Exterior Primer.

Can you use mold resistant paint over mold killing primer?

Once your mold killing primer is dry, you’ll want to paint over the area with a mold resistant paint. If you use regular paint over your primer, you are actually giving new mold a surface to consume and start new growth on.

Can a primer be used on a porous surface?

On a porous surface, however, it may not come into contact with all mold. It also isn’t meant to be a sealer, meaning it seals in the mold stain. So an ideal solution is to also seal the mold stain before painting. When it comes to mold killing primers, there aren’t many products on the market that claim to actually kill mold.

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