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Internet # 305230334

Model # 57500A-01

Store SKU # 1003202152

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Maximum 1 gal. Clear Exterior Waterproofing Sealer

$40.98
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  • Stain, seal & waterproof in one step with penetrating formula
  • Advanced SunBlock UV Protection with mildew resistant coating
  • Oil based stain ideal for deck, fence & exterior wood projects
  • View More Details

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Product Details

About This Product

Olympic Maximum Clear Waterproofing Sealant is #1 rated three years in a row by a leading consumer magazine among clear wood sealer stains. Features a penetrating formula that offers great protection against water damage, UV wear, scuffs and mildew stains. Promotes the natural beauty and durability of your wood. Recommended for use on exterior wood decks, fences, siding, railings, outdoor furniture and other wood surfaces. Apply to new, dry, pressure-treated wood, uncoated new or weathered wood, or previously coated wood with a weathered, clear sealant or semi-transparent stain.

Highlights

  • Stain with sealant in one protects and beautifies wood in one step
  • Clear waterproofing wood deck and fence sealer
  • Penetrating oil stain formula for lasting color and protection
  • Provides a clear, mildew resistant coating
  • Durable wood stain formula features advanced SunBlock UV defense, exclusive SCUFF GUARD technology and enhanced waterproofing protection
  • Recommended for use on exterior wood decks, fences, siding, railings, outdoor furniture and other wood surfaces
  • Apply to new, dry, pressure-treated wood, uncoated new or weathered wood, or previously coated wood with a weathered, clear sealant or semitransparent stain
  • One coat application recommended
  • Oil based stain for easy cleanup with mineral spirits
  • Pretest: apply to a small area and allow to dry to ensure applicable appearance and penetration
  • For previously stained wood: if the stain is not absorbed into the surface and is still tacky after 12 hours, the surface is not suitable for a waterproofing sealant
  • For damp wood: if wood is too damp to allow penetration, allow to dry further and retest for penetration
  • Online price includes PaintCare fee in the following states: CA, CO, CT, DC, ME, MN, OR, RI, VT, WA
  • Return Policy

Product Information

Internet # 305230334

Model # 57500A-01

Store SKU # 1003202152

Additional Resources

Shop All Olympic

Specifications

Dimensions: H 7.75 in, W 6.75 in, D 6.75 in

Dimensions

Container Size

1 Gallon

Coverage Area (sq. ft.)

300 sq ft

Product Depth (in.)

6.75 in

Product Height (in.)

7.75 in

Product Width (in.)

6.75 in

Details

Application

Wood Waterproof/Sealer

Application Method

Brush, Pad, Paint Sprayer, Roller

Base Material

Oil Based

Color Family

Clear

Color/Finish

Clear

Dry to the touch (hours)

4

Interior/Exterior

Exterior

Maximum Optimal Temperature (F)

90

Minimum Optimal Temperature (F)

50

Number per Package

1

Paint/Stain Clean Up

Mineral Spirits

Paint/Stain Features

Dries Clear, Mildew Resistant, Moisture Resistant, Waterproof

Product Weight (lb.)

8.1 lb

Recommended Number of Coats

1

Returnable

90-Day

Sheen

Natural Stain

Stain & Sealer In One

Yes

Substrate Condition

Finished Wood, Pressure Treated Wood, Unfinished Wood

Substrate/Surface Material Use

Wood

Surface Location

Deck

Time before recoating (hours)

24

Transparency

Clear

Vertical/Horizontal

Vertical / Horizontal

Warranty / Certifications

Certifications and Listings

No Certifications or Listings

Manufacturer Warranty

LIMITED WARRANTY

Questions & Answers

Is this a totally clear application
ByFeb 22, 2026
2 Answers | 
Answer This Question

Not totally clear it has a yellow tone

By|Mar 7, 2026

    It is clear, however the application of a clear product that absorbs into the wood will change the appearance of the wood. We recommend testing in an inconspicuous area before full application if this is a concern.

    By|Feb 25, 2026


      can this be used on the cedar pre-stained gazebels that the big box stores sell for better protection?
      ByFeb 15, 2026
      1 Answer | 
      Answer This Question

      For previously finished surfaces, we recommend doing an absorption test on the wood by dripping some water on the surface of the wood. If the water absorbs into the wood, this product can be used. If it beads on top of the wood, the current finish is good and this product should not be used without removing the current finish.

      By|Feb 16, 2026


        Can this be used on smart siding?
        ByFeb 4, 2026
        1 Answer | 
        Answer This Question

        I would not use a semi transparent on Smart siding, but the Maximum solid stain would be OK to use. For more information, please call 1-800-441-9695 to talk to a specialist.

        By|Feb 11, 2026


          can it be applied over a deck that was coated with thompson water seal deck sealer
          ByDec 27, 2025
          1 Answer | 
          Answer This Question

          This product needs to be able to absorb into the wood. You can test this by sprinkling water on your deck and observing the droplets on the existing coating. Your surface is: Ready to stain: If the water absorbs into the wood within about 10 minutes or the wood darkens in color, the wood is porous enough to accept the new stain or sealant. Not ready: If the water beads up on the surface and does not absorb, the old finish needs to be removed (stripped) or you must wait longer before applying a new product. Applying new stain to a non-absorbent surface will result in poor penetration and adhesion.

          By|Jan 2, 2026


            what is the best brush to use with this product? preferably 3 or 4 inch brush
            ByDec 8, 2025
            1 Answer | 
            Answer This Question

            Thank you for reaching out! This product can be applied in several ways depending on your project. For brushes, we recommend our deck brushes: that can be found here: https://www.olympic.com/products?product_type=applicators Fence: Apply with a 3/8"" nap roller and immediately backbrush using a stain brush on an extension pole. Pump spraying with backbrushing is also an option, but for large projects, it may require extra pumping effort. Deck: Apply using a pump or airless sprayer, then backbrush with a 4"" deck brush on an extension pole. Furniture: Use a stain brush, following the wood grain for best results. Rails/Spindles: Apply carefully with a 2"" brush for precision. The most important step is proper surface preparation to ensure a lasting, penetrating finish. If we can assist further with your project, please don’t hesitate to contact us at techservicerequests@ppg.com or 1-800-441-9695.

            By|Dec 8, 2025


              How many coats of the semitransparent need to be applied.
              ByNov 17, 2025
              1 Answer | 
              Answer This Question

              Hi there, for our Maximum Semi-Transparent Stain & Sealant in one, we recommend one coat application. If we can help with anything else for your project, please do not hesitate to contact us directly at techservicerequests@ppg.com or 1-800-441-9695.

              By|Nov 19, 2025


                Can I use this project at about 38°?
                ByNov 12, 2025
                1 Answer | 
                Answer This Question

                Apply when no precipitation is expected for 8 hours, and when air and surface temperatures are 35°F to below 120°F (2°C to 49°C) and will remain above 35°F (2°C) for the next 24 hours.

                By|Nov 12, 2025


                  Can you apply the sealer with a sprayer
                  ByNov 6, 2025
                  1 Answer | 
                  Answer This Question

                  Yes, this can be applied with a high quality brush, paint / stain pad or by spray equipment. When spraying, always back brush for best results. To help avoid lap marks, apply to only a few boards at a time, and maintain a wet edge.

                  By|Nov 10, 2025


                    Viewing 1-8 of 708

                    Customer Reviews

                    4.3 out of 5

                    • 4.3 out of 2,973 reviews
                    • 75% recommend this product
                    Filter by:
                    Showing 1-10 of 2,973 reviews
                    This product really sealed my fence and looks awesome.
                    by
                    We use this stain with our Pavilions and Pergolas and it is very good quality and lasts a long time.
                    by
                    This Olympic stain goes on easily and one gallon will cover approximately four 6x8 cedar fence panels when applied with a brush. The Red Brick color looks a bit brown at first, but lives up to the name when dry. Home Depot’s free, same-day delivery was a lifesaver when I realized that I was going to need a bit more stain to complete the project.
                    by
                    Horrible, doesn't last, terrible customer service and warranty fulfillment.
                    We had a licensed fence contractor install new pickets and stain with this stain in timberline. She had to use double the amount she usually does, compared to other colors. After 6 months it looks absolutely terrible. Splotchy, faded, and sad. She contacted the manufacturer to see about getting reimbursed or refunded so she can buy a color that she knows works. They told her that she applied it wrong, and tried to gaslight her into saying it is not their fault and they will do nothing. This is a small business, who did a great job. The issue is with the stain. Really disappointed in the customer service. This stain is supposed to last 8 years on a fence. It didn't last 6 months. DO NOT USE. Many boards also warped, likely due to lack of protection from stain due to manufacturing errors.
                    by
                    Response from Olympic TeamNov 14, 2025
                    Hi Kylee, our team wants to help. When you’re unhappy, we’re unhappy, and we’d like to talk about your issue continue the discussion with you. Please reach out to our technical services team for solutions at 1-800-441-9695 between 8am-5pm ET. They have the knowledge and resources to deal with your product issue. Sincerely, The Olympic Team OlympicPaint
                      Easy application and looks great!
                      by
                      • Verified Purchase
                      It gives the wood a beautiful natural color unlike others .
                      by
                      • Verified Purchase
                      This customer chose to rate the product and not provide text.
                      by
                      • Verified Purchase
                      DOESNT LAST
                      Terrible product. I am a fencing contractor, I used this stain 6 months ago on a newly installed cedar fence. It already looks 10 years old, contacted the company because their warranty claims it’s for 8 years, but they will find any excuse not to refund you. It looks great at first, but it doesn’t hold up. $2500 in stain down the drain.
                      by
                      Response from Olympic TeamOct 29, 2025
                      Hi , thank you for your review. We appreciate your feedback and we're sorry to hear about this experience. We'd like to speak with you to make this right, please contact us at techservicerequests@ppg.com or 1-800-441-9695. OlympicPaint
                        I have been using this product for years to protect the deck from the elements. It has done a good job of maintaining the appearance and helping prevent rot.
                        by
                        Excellent product we used it to seal 1636 feet of horse fencing and our pool deck We used clear and it looks very lovely My cousin is a professional painter and told us this was the product to use His pool deck is over 20 years old Great product
                        by
                        • Verified Purchase
                        Showing 1-10 of 2,973 reviews

                        Compare Key Features

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                        Product Snapshot

                        Ideal for exterior wood protection, this sealer offers UV defense, mildew resistance, and waterproofing in one coat.
                        Ideal for eco-conscious homeowners seeking long-lasting wood protection, ensuring natural aging without decay for up to 10 years.
                        Ideal for decks, patios, and basements, this durable, fade-resistant enamel offers excellent water and blister resistance.
                        Ideal for homeowners looking for durable floor enamel, making floor painting easier and more efficient.

                        UV Protection

                        SunBlock UV defense
                        Fade-resistant
                        Fade-resistant

                        Water Resistance

                        Coverage Area

                        300 sq ft/gallon
                        Up to 350 sq. ft. per gallon
                        400 sq ft/gallon
                        400 sq ft/gallon

                        Drying Time

                        4 hours
                        1.5 hours to touch, 6 hours recoat
                        4 hours to touch, 24 hours recoat
                        4 hours to touch, 24 hours recoat

                        Mold and Mildew Resistance