850,000 Cans of Thompson Waterproofing Sealer Recalled


If you want to keep that brand-new deck looking fresh, you might be tempted to reach for a can of Thompson’s WaterSeal, a popular waterproofing protector that comes in an aerosol can.

Unfortunately, more than 850,000 units of both the Wood Protector and Masonry Protector formulas of WaterSeal have just been recalled due to fire risk.

What Caused This Recall?

According to the United States Consumer Product Safety Commission, Thompson’s WaterSeal aerosol cans may become compromised as the product inside causes the seam of the can to rust.

If that happens, pinhole leaks may develop that allow the aerosol propellant to escape. Not only could this leak cause property damage, but if the cans are near a source of ignition (a lit cigarette or fire pit, for example) they could catch fire.

The company received 18 reports of leaking containers directly from retailers. Currently, there are no reports of injury or fire as a direct result of this recall.

Products Covered in This Recall

All the Thompson’s WaterSeal products are impacted by this recall. The products are sold in 11 oz aerosol cans with either a green or blue cap.

Check the information on your products against the following list to see if you need to take action:

Thompson’s WaterSeal Waterproofing Wood Protector Aerosol

  • Item #: TH.041800-18
  • UPC: 032053418006

Thompson’s WaterSeal Signature Series Aerosol

  • Item #: TH.091800-18
  • UPC: 032053918001

Thompson’s WaterSeal Waterproofer Plus Wood Protector Aerosol

  • Item #: TH.011800-18
  • UPC: 032053118005

Thompson’s WaterSeal Waterproofer Plus Masonry Protector Aerosol

  • Item #: TH.023100-18
  • UPC: 032053231001

What You Should Do Next

The sealants were sold across the country at a number of stores including Lowes, Home Depot, and Walmart for about $8. However, instead of taking the potentially dangerous products back to the retailers, you’ll need to contact The Thompson’s Company directly for a refund.

If you purchased Thompson’s WaterSeal Wood Protector or Masonry Protector between February 2014 and September 2019, you should stop using it immediately. You’ll need to dispose of it safely according to your local regulations; just throwing the can in the trash is not a safe option.

The Thompson’s Company toll-free at 888-304-3769 from 9 a.m. to 5 p.m. ET, Monday through Friday, email at thompsonsaerosolrecall@sherwin.com, or online at www.thompsonswaterseal.com and click on “RECALL” for more information.