How to Paint Unpaintable Caulk

Written By
C
Contributor
Published: Mar 31, 2008
Updated: Nov 20, 2021
3 minute read

However, everybody makes mistakes and one of the easiest to make is using the wrong kind of caulking. If you ever make the mistake of using silicon caulking in an application you want to paint (around a window for example) or you've moved into a home where a previous owner used upaintable caulking, before you start digging out that unpaintable silicon caulk, you might try one of these ideas. You may just save yourself a lot of work.

Things You Will Need

  • Mineral spirits or paint thinner
  • Rubbing alcohol
  • Oil-based (alkyd) paint primer
  • Shellac
  • Latex caulk
  • Cloths
  • Acrylic latex paint
  1. Rub a cloth dampened with mineral spirits or paint thinner over the silicon caulking. Allow it to dry and then apply two thin coats of an oil-based (alkyd) primer. Be sure to allow the first coat of primer to dry before applying the second.

  2. Once the primer has dried, apply your chosen paint color, again allowing the first coat to dry before applying the second.

  3. Alternatively, use rubbing alcohol on the silicon caulk and after it has dried apply two coats of shellac. Once the shellac has dried you can apply your chosen paint color.

  4. Use latex caulking right on top of the silicon. Apply a bead of the latex caulking, then use your fingers dipped in liquid dish soap to spread it thinly over the surface of the silicon caulking.

  5. Once the latex caulking has dried, you are now ready to paint it the color of your choice.

The Drip Cap

  • How to Paint Unpaintable Caulk.
  • If you ever make the mistake of using silicon caulking in an application you want to paint (around a window for example) or you've moved into a home where a previous owner used upaintable caulking, before you start digging out that unpaintable silicon caulk, you might try one of these ideas.
  • Once the primer has dried, apply your chosen paint color, again allowing the first coat to dry before applying the second.
  • Alternatively, use rubbing alcohol on the silicon caulk and after it has dried apply two coats of shellac.

Resources

Sponsored
HomeSteady Logo

HomeSteady is the ultimate guide for all your household needs, from cleaning and HVAC to electrical, DIY and maintenance.

Property of TechnologyAdvice. © 2026 TechnologyAdvice. All Rights Reserved

Advertiser Disclosure: Some of the products that appear on this site are from companies from which TechnologyAdvice receives compensation. This compensation may impact how and where products appear on this site including, for example, the order in which they appear. TechnologyAdvice does not include all companies or all types of products available in the marketplace.