Question: “I applied Thompson’s clear water seal for wood to my stamped concrete steps and sidewalk today by mistake. Can I try power washing it before it dries?? Anything else I can try?”
Thompson’s WaterSeal is made for protecting outdoor surfaces from rain and other wet conditions, but most of their products are made for wood. It is easy to get some of it onto surrounding surfaces accidentally when applying it or grab the wrong kind when you wanted the multi-surface version. Here’s how to remove the wood sealant from your sidewalk or other concrete surface.
You Will Need:
- Mineral spirits
- Concentrated degreaser
- A scrub brush
- A wire brush
- Concrete etcher
- A hose
Steps to Remove the Sealant:
- To use mineral spirits, wipe the spirits over the area with a cloth. Let it sit for a few minutes, then scrub the area with a scrub brush.
- To use a concentrated degreaser, follow the instructions on the label of your selected product. Some good choices for this are Krud Kutter or Simple Green. Use a scrub brush to increase the effectiveness of the degreaser.
- If the scrub brush is not strong enough, you can use a wire brush instead.
- Thoroughly rinse the area after scrubbing to remove the residue from the sealant and cleaner.
- If the mineral spirits or general degreaser doesn’t work, you can use a concrete etcher, such as Krud Kutter Clean & Etch or Quikrete Cleaner, Etcher and Degreaser. Follow the instructions on the label of your selected product.
- Always wear gloves when working with strong chemicals and read the labels to find any other safety precautions that may be needed.
- Another option is to sand off the sealant either by hand with sandpaper or by using an electric sander. Be sure that the sealant has dried first before sanding.
- If you have a pressure washer, another option is to use a sandblast kit to sandblast the concrete and remove the sealant.
- If you want to use a Thompson’s WaterSeal Waterproofer on your concrete, use the Multi-Surface version.
- The Cleaning Encyclopedia by Don Aslett
- Ultimate Guide to Masonry and Concrete by Creative Homeowner