Drywall Patching

By Robert Robillard on Home Repairs And Remodeling

Drywall Patching Question

Hi Robert ~I have a question for you. When I remodeled one of my rooms last year, I have one spot where two pieces of drywall meet that I didn’t put enough compound down to hide the edge tapers.The joint is fine but you can see a valley from the tapers. I have already primed & latex but now I would like to fix.Can compound be put on top of latex? Should I rough it up? Take it off? or just apply more compound?

Thanks in advance
Dave

Hi Dave,

Thanks for question.

I have asked my painting contractor friend Mark from O’LALOR PAINTING COMPANY to respond to your question.

Hiding Drywall Patch Edges

Mark replies:

Yes compound can be applied over a painted surface but it is very important to scuff the area and wash it with TSP so that maximum adhesion can take place.

If you don’t properly prepare it beforehand it will lift off in sheets within a couple of years.

The washing phase is important for two reasons. First, the TSP cuts the latex sheen and second it removes any ambient dust that would create a barrier between the wall compound and the painted surface.

Good Luck, Mark O’

MARK E. O’LALOR
O’LALOR PAINTING
(978) 944-1569

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About the author

Robert Robillard

Carpenter / Remodeler / Editor

Rob Robillard is “The Concord Carpenter” Rob is a builder, general contractor, carpenter, woodworker, and editor of Concord Carpenter and ToolBoxBuzz As a General Contractor and carpenter, Rob owns and operates Concord Carpenter LLC. A full-service remodeling and construction company. Rob is a recognized leader in home building best practices and a source for how-to information for building professionals. On this website, Rob covers all aspects of home construction, building science, home improvement, woodworking, remodeling, and some of the best product and tool reviews. Rob is in charge of our Tool and Product Review series - Concord Carpenter Videos where we post all of our tool reviews and video tutorials. Rob approaches remodeling and building construction with a pragmatic and problem-solving approach. He enjoys using his knowledge and experience to help and educate building professionals as well as DIYers on best practices in the construction and remodeling industry. He's a strong advocate for "raising the bar" in the construction trades and promoting the trades to youth. #BeAMentor #Green2Great Craftsmanship, quality, and pride guide his journey on this channel The Concord Carpenter's motto: "Well done is better than well said!" : Read more about Rob If you have a building or remodeling question you can have rob respond to your answer via video. Click here for more information. https://jointruly.com/robillard Invite code: x22r2

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