Messages and Online Forum Q&A

Re: Cleaning construction adhesive - Liquid Nails or PL400

From: info@builderswebsource.com
Category: Other/Misc
Date: 02 Aug 2000
Time: 22:11:14
Remote Name: 63.198.181.43

Comments

Removing dry construction adhesive from sheetrock, such as Liquid Nails or PL400 (or equivalent), can be a painstaking process.

First, carefully try to remove any large clumps with a sharp razor blade or putty knife, being careful not to damage the sheetrock surface.

Next, try using paint thinner (mineral spirits) or a caulk and adhesive remover such as Liquid Nails LN595 or similar product. Wear gloves since this will be a tedious and messy process and be sure to provide ample ventilation.

Using clean white rags, apply generous amounts of solvent to the area and let it soften the adhesive. After a few applications, you should be able to wipe most of it away, although a residual stain or thin layer may persist. Clean up with warm soapy water.

Prior to painting, you may need to repatch the ceiling with a thin layer of sheetrock mud...and sand to a smooth finish (assuming your ceiling is smooth). Then, apply a good primer and paint as you normally would. Let us know how it turns out.

Good luck!

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