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Thompson's

Thompson's® WaterSeal® Waterproofer Plus Clear Wood Protector, 3.78-L/1-Gallon

#048-8869-4
$44.99
price was $54.99
Mail-in RebateSale

Sale ends May 20, 2026

Save $10 when you purchase a 3.78L container. Maximum rebate of $60 per household.
$34.99
After Rebate
Buy Online :
Pick up at Leduc, AB
50 In Stock
Free Pick Up over $25 (before taxes)
Get it Today !

Pick up available 12:30 p.m., May 10

Quantity updated to 1
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Also Find It in Store:
50 In Stock at Leduc, AB
Aisle 47
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Thompson's

Thompson's

Thompson's® WaterSeal® Waterproofer Plus Clear Wood Protector, 3.78-L/1-Gallon

$44.99
price was $54.99
Sale ends May 20, 2026

Product Details

The Thompson's® WaterSeal® Waterproofer Plus Clear Wood Protector keeps your wood looking great for longer, while preserving its natural colouring. Thanks to its unique coating and powerful surface-preserving formula, the wood protector counteracts UV damage and mildew. Safe on a variety of wood grains, including pressure-treated wood, this DIY essential is the perfect addition to your home care maintenance routine.

  • Specially formulated for wood

  • Advanced waterproofer enables+U979:X979 you to clean and treat in one day

  • Offers one-coat coverage for efficient use

  • Product uses: decks and fences, outdoor wood furniture, exterior wood

  • Drying time: 12 hours

  • Product coverage: cedar, oak, redwood 23.2-27.9m2/3.78 L (250 - 300 sq. ft./gal), all other woods (i.e. pine, pressure-treated, plywood) 18.6-23.2m2/3.78 L (200 - 250 sq. ft./gal)

Part Number THCP43004-16
Stain Finish Semi-Transparent
Stain Type Exterior Stain
Base Material Oil
Stain Premixed Colour Not Applicable
Product Use(s) Exterior
Stain Can Size 3.7 L (1 gallon)
Stain Clean Up Mineral Spirits
Application Method Brush
Number of Coats Recommended 1
Advanced Features No Advanced Features
Shelf Life After Opening (Month) 24 mo
Shelf Life (year) 99 yr
Stain Maximum Coverage Area (sq ft) 215 ft²
Warranty:
  • This product carries a 1 year exchange warranty redeemable at any Canadian Tire store.
Online Ordering
  • Pick Up is free at most stores (some stores require a minimum order value before tax)
  • Shipping fee is based on size and weight of products and distance from address to store
  • Same-Day Delivery costs $9.99 per order
  • Online Ordering Information
Returns
  • Most products can be returned or exchanged at any Canadian Tire store within 90 days of purchase
  • Some products are non-refundable and non-exchangeable
  • The return policy outlined above may not apply to the product you are currently viewing. For complete details and eligibility, please refer to our Return Policy for exceptions.

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Ratings
Stain FinishSemi-TransparentSemi-TransparentSemi-TransparentSolidSolid
Stain TypeExterior StainExterior StainExterior StainExterior StainExterior Stain
Base MaterialOilOilOilOilOil

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Review Highlights

List of Pros Highlights
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Reviews

Rating Snapshot

Select a row below to filter reviews.
300 reviews with 5 stars.
59 reviews with 4 stars.
14 reviews with 3 stars.
9 reviews with 2 stars.
18 reviews with 1 star.

Overall Rating

4.5
149 out of 173 (86%) reviewers recommend this product

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Filter Reviews

  • application
  • wood
  • satisfaction
  • color
  • protection
  • for rainy weather
  • results
  • purchase
1 to 5 of 400 Reviews.
1 – 5 of 400 Reviews

Facile d'application

2 hours ago
C'est le meilleur imperméabilisant sur le marché. C'est le seul que j'achète depuis plusieurs années.
Helpful?

Thompsons

24 days ago
Great product easy application
Helpful?

Amazing water protection

a month ago
I built my south facing deck in 2021 and stained with Chabot, but did not apply any water sealer. The stain started pealing off after the first winter. I stained it again with Chabot last summer (after sanding and removing the old stain) and applied this product (Thompson) afterwards. WOW! I know it’s only been one winter, but I’m really impressed with the difference. I live in Ottawa and we get lots of snow… It looks as good as when I finished last summer.

Yes, I recommend this product.

Helpful?

Beautiful Finish

2 months ago
[This review was collected as part of a promotion.] I build cedar raised garden beds and herb planters. I use Thompson Waterseal clear wood sealer for all my projects. It brings out the natural beauty of cedar while giving it a long-term waterproof and UV proof coating.

Yes, I recommend this product.

Originally posted on thompsonswaterseal.com

Great product

2 months ago
[This review was collected as part of a promotion.] This product is very easy to use. The cleanup is easy too and not messy. It brings out the natural beauty of the wood and makes the grain more noticeable. Loved the way our porch turned out. Thankful for the protection it provides.

Yes, I recommend this product.

Originally posted on thompsonswaterseal.com

1 – 5 of 400 Reviews

Questions

1 - 10 of 26 Questions

Q: What do I use to apply this product to a large deck? Will a simple paint roller do?

4 years ago
4 Answers
  • A: Canadian tire sells a 7" pad that has a handle that can also be attached to a broom stick. Saves the back!
    3 years ago
    Helpful?

Q: Will this work on untreated wood just as well? I have a chicken coop and outdoor srand I'd like to protect.

a year ago
3 Answers
  • A: Thank you for taking the time to ask a question. To determine if the surface is sealed or can be sealed, perform a "Water Test". The water test is accomplished by dripping some water on the surface of the substrate. If the water penetrates into the surface and makes it noticeably darker, then it is ready for a coat of Thompsons. If the water beads up on the surface, then hold off on the application (currently the substrate is sealed and does not require an additional layer of sealer). If you have any questions, please contact us directly at 1-800-367-6297 or info@cbgbrandreview.com. Sincerely, R.C., Digital Care Team
    a year ago
    Helpful?

Q: Can a small amount of penetrating oil based stain be added to Tompson 's clear wood sealer to give it a slight tint?

a year ago
2 Answers
  • A: You would want to how the ingredients act when mixed together. It would be best to ask the manufacturer.
    a year ago
    Helpful?

Q: Is this a good product to apply to a wood deck that is regularly exposed to chlorine in the summer months?

a year ago
2 Answers
  • A: I would strongly asking the manufacturer of Thompson WaterSeal that question as there are many chemical variables that could come into the equation.
    a year ago
    Helpful?

Q: want something that is clear and best protection for my one year old deck (pressure treated). Tossed between the waterproofer plus clear wood protector and the exterior multi-surface waterproofer clear, what is the difference and what would you recommend?

2 years ago
2 Answers
  • A: if you were putting it on pressure treated lumber (brown) then it really shouldn't turn to grey would it? Sounds like maybe the UV one would be better for a one year old pressure treated deck?
    2 years ago
    Helpful?

Q: How many square feet does one gallon of sealer cover?

2 years ago
2 Answers
  • A: 175 square feet approximately
    2 years ago
    Helpful?

Q: Can I apply the sealer under 16 degrees Celsius?

3 years ago
2 Answers
  • A: Instructions say to apply above 16 celcius. Other sealers say to apply above 10 celcius so you may be ok above 10 celcius but I don’t know. Maybe do a small area and see what results are after 24 hours
    3 years ago
    Helpful?

Q: The USA site Thompsonwaterseal.com says to apply when 50 degrees Fahrenheit or more for 48 hours. The container I bought says 16 degrees Celsius or higher. 50 degrees Fahrenheit is 10 degrees Celsius. Why the difference in temperature for application? Wh.

4 years ago
2 Answers
  • A: Thank you for your question. If you apply the Thompson's products in lower temperatures it can be a slower dry time and may not set up correctly. Regards, Linda @ Thompson's Waterseal Customer Support
    4 years ago
    Helpful?

Q: Hi What is the difference between this product and the Thompson's Original Water Seal? I am looking for protection that seals in that wet look on my deck. I don't see any difference at first except the price? Thank you

4 years ago
2 Answers
  • A: It does keep a deeper look( wet look longer) but you should redo each year to keep a deck or fence lasting twice asclong. The mildew resistant element helps jeep away the green buildup challenge in shady areas. 
    4 years ago
    Helpful?

Q: We’ve sanded an old deck down to the bare pressure treated wood can this product be applied now? Any other prep required we want the colour of the wood to be clear what it is now. 

4 years ago
2 Answers
  • A: I have used Thompson water seal with amazing results. My deck and fence were getting on in years but after applying Thompson I now have a beautiful honey coloured deck and fence. I did no other prep other than power washing. so I would say if you are down to the original wood, no other prep is required. The Thompson seal that I used was the green label.
    4 years ago
    Helpful?
1 - 10 of 26 Questions

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