How to Use Lye As Paint Remover

Written By
Ryan Lawrence
Ryan Lawrence
Published: Feb 20, 2010
Updated: Nov 20, 2021
2 minute read

Because lye can dissolve glue and make wood soft, it is generally not a very useful chemical unless you need to remove a particularly stubborn paint stain or you need to strip a large amount of paint from a very large surface. Because lye can burn skin, you need to know the proper way to use it or you may end up having to visit the emergency room with severe burns.

Things You Will Need

  • Acid-resistant gloves
  • Metal putty knife
  • 5-gallon bucket
  • Measuring cup
  • Corn starch
  • Lye powder
  • Wooden stir stick
  • Oil-based paintbrush
  • Vinegar
  • Water hose
  • Respirator with acid-grade filters
  1. Put on acid-resistant gloves.

  2. Work outdoors or in a well-ventilated area.

  3. Fill a 5-gallon bucket with two gallons of water.

  4. Stir in one cup of lye powder and one cup of corn starch using a wooden stir stick.

  5. Apply the solution to the surface using an oil-based paintbrush.

  6. Allow the solution to soak into the paint for five minutes.

  7. Scrape away the paint using a metal putty knife.

  8. Apply a solution of one-part vinegar and one-part water to the surface, effectively neutralizing the lye.

  9. Rinse the surface with a water hose.

  10. Neutralize the solution in the 5-gallon bucket by stirring in three cups of vinegar.

The Drip Cap

  • Lye, or sodium hydroxide, is one of the oldest used paint strippers.
  • Because lye can burn skin, you need to know the proper way to use it or you may end up having to visit the emergency room with severe burns.
  • Apply the solution to the surface using an oil-based paintbrush.
Ryan Lawrence

Ryan Lawrence is a freelance writer based in Boulder, Colorado. He has been writing professionally since 1999. He has 10 years of experience as a professional painting contractor. Lawrence writes for High Class Blogs and Yodle. He has a…

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.