Questions on waterproofing and sealing your home and concrete masonry surfaces.

Seal-Krete Original can be applied below grade on interior walls and floors as a primer prior to painting, provided there is no evidence of hydrostatic pressure. On thin coat is recommended on basement floors. Two coats are recommended on vertical walls. Seal-Krete Original Waterproofing Sealer cannot be applied on exterior substrates below-grade

2. Can Seal-Krete Original Waterproofing Sealer be used on my concrete floor
before installing new carpet?

Yes. Seal-Krete Original Waterproofing Sealer will seal the floor and bind dust particles. It can also be used to seal concrete floors before installing tile and hardwood flooring. It also serves as a premium sealer and is compatible with most glues, thin sets and mastics required to install interior flooring products.

3. Can I use Seal-Krete Original Waterproofing Sealer on the exterior of my home
before repainting? The stucco is chalking and I want to ensure that the paint properly adheres to the stucco.

Seal-Krete Original Waterproofing Sealer is an excellent primer/sealer when repainting both residential and commercial properties. It binds chalky surfaces and can be applied over oil, as well as water-based paints and coatings. Seal-Krete Original Waterproofing Sealer can also be added to water-based paints to improve the spread rate. It contains a high quality resin and improves the quality of the paint. Four to eight ounces per gallon is recommended when mixed with the topcoat of paint.

4. I have a couple of gallons of Seal-Krete Original Waterproofing Sealer left over
from painting my home this spring, can I use it to seal my driveway?

No. Seal-Krete Original Waterproofing Sealer cannot be used on exterior horizontal surfaces as a clear finish coat. We recommend Seal-Krete Garage Floor Sealer for this application.

Yes. Seal-Krete Original Waterproofing Sealer has been used for more than 25 years to protect and preserve America’s landmarks. The buildings should be properly cleaned and free of any efflorescence before sealing. Fragile, loose, and missing mortar joints will require tuck pointing prior to application of Seal-Krete Sealer.

6. I have a wood deck that I’ve recently cleaned. Can I use Seal-Krete Original
Waterproofing Sealer to seal the deck?

No. Seal-Krete Original Waterproofing Sealer cannot be used on exterior
horizontal surfaces as a clear sealer. It can be used, however, as a stain and seal by
mixing sealer 1:1 with a water-based porch and deck enamel.

7. Can I use Seal-Krete Original Waterproofing Sealer to seal and protect my new
stockade fence?

Yes. Seal-Krete Original Waterproofing Sealer can be used to seal wood fencing.
It can be used as a clear finish coat or can be tinted to any color using exterior water-based paint. Mix 1:1 for a solid color, or 1 part paint to 1 part sealer for a transparent stain. When used as a clear coat, Seal-Krete Original Waterproofing Sealer will not prevent the natural graying of the wood.

8. Can I use Seal-Krete Original Waterproofing Sealer to seal my birdbath? Is it
harmful to birds and squirrels?

While Seal-Krete Original Waterproofing Sealer is an environmentally safe product that is not harmful to flora, fauna or humans, it is not recommended to seal
birdbaths, pools, ponds, or fountains that contain running or standing water.

9. Can Seal-Krete Original Waterproofing Sealer be applied to dull, painted aluminum?

Yes. Seal-Krete Original Waterproofing Sealer can be used as a clear coat to
revive fading aluminum or as a primer/sealer before repainting aluminum.

10. I have an older home with T-111 on the gable ends. Can I use Seal-Krete Original
Waterproofing Sealer on the wood prior to painting?

Yes. Seal-Krete Original Waterproofing Sealer is an excellent primer/sealer for
vertical wood to help seal and protect wood from the elements.

11. Can Seal-Krete Original Waterproofing Sealer be used on tilt-up and in-place concrete to waterproof these substrates?

Yes. Seal-Krete Original Waterproofing Sealer (SKO) is an excellent choice for tilt-up and in-place concrete. When applied according to specifications, SKO will completely waterproof both substrates. All chemicals and form release agents must be properly removed before application of SKO.

12. Can Seal-Krete Original Waterproofing Sealer be used on split-face block?

Due to the porosity and profile of this substrate, we do not recommend application of Seal-Krete Original Waterproofing Sealer. For split-face, decorative and fluted
block, use Seal-Krete Heavy-Duty Waterproofer, a 25% solids version of Seal-
Krete Original Waterproofing Sealer. This product was formulated specially for
lightweight, low-density block.

13. Can I use Seal-Krete Original Waterproofing Sealer to seal my canvas awnings?

No. Seal-Krete Original Waterproofing Sealer is not recommended on canvas or any type of fabric as a clear sealer.

14. Can Seal-Krete Original Waterproofing Sealer be use as a primer on ornamental
lawn statues before repainting?

Yes. Seal-Krete Original Waterproofing Sealer can be used as a primer to bind
chalking and fading paint before painting lawn statues.

15. Can I apply Seal-Krete Original Waterproofing Sealer to my asphalt shingles to
lock down the granules and prevent them from being carried away by wind-driven
rain?

No. Seal-Krete Original Waterproofing Sealer is not recommended for application
on asphalt shingles.

16. Can Seal-Krete Original Waterproofing Sealer be used on terracotta, barrel tiled
roofs as a sealer to reduce mildew?

Yes. Seal-Krete Original Waterproofing Sealer can be used on barrel tile to seal out the porosity of the substrate and to curtail mold and mildew formation. Application of SKO will also facilitate both maintenance and cleaning of the tile.

17. Can I use Seal-Krete Original Waterproofing Sealer to seal my asphalt driveway?

No. Seal-Krete Original Waterproofing Sealer is not recommended for application
on asphalt substrates.

18. Can Seal-Krete Original Waterproofing Sealer be applied as a primer sealer on
Durarock before tiling shower stalls?

Yes. Seal-Krete Original Waterproofing Sealer can be used on Durarock before installation of tile and grout in a shower area. SKO will serve as an adhesion promoter for the thin set used to set the tile.

19. Can Seal-Krete Original Waterproofing Sealer be used on chalking and fading vinyl siding prior to painting?

Yes. SKO can be used as a primer/sealer before painting vinyl. It will also serve as an adhesion promoter for the topcoat of paint.

20. Can Seal-Krete Original Waterproofing Sealer be used on E.I.F.S.?

Yes. SKO can be used on E.I.F.S.

21. Can I use Seal-Krete Original Waterproofing Sealer on DRYVIT?

Yes. Seal-Krete Original Waterproofing Sealer can also be used on DRYVIT.

22. Is Seal-Krete Original Waterproofing Sealer safe to use in cafeterias and
commercial kitchens?

Yes. SKO is USDA criteria for a structural surface coating that may come in contact with food.

23. Can I use Seal-Krete Original Waterproofing Sealer on drywall before painting or
wallpapering?

Yes. Seal-Krete Original Waterproofing Sealer can be used as a primer/sealer on drywall prior to painting or installing wallpaper.

24. What is the ratio for mixing paint with Seal-Krete Original Waterproofing Sealer?

The ratio for mixing paint with Seal-Krete Original Waterproofing Sealer varies, depending on the desired aesthetics. SKO can be tinted anywhere from a transparent stain to a solid hide. For transparent stains, mix paint to sealer 1:4, respectively. For a solid color, mix paint to sealer 1:1.

25. Is Seal-Krete Original Waterproofing Sealer breathable?

Yes. Seal-Krete Original Waterproofing Sealer will allow for vapor transmission while completely waterproofing approved substrates from the elements.

26. We recently moved into a new home. The previous owners had both dogs and cats.
We are replacing the old carpeting and would like to seal the floor. Will Seal-Krete Original Waterproofing Sealer work for this application?

While Seal-Krete Original Waterproofing Sealer can be used to seal concrete floors, it is a breathable coating and will not encapsulate the odor of pet urine.

27. Can Seal-Krete Original Waterproofing Sealer be used on concrete floors in wild animal enclosures?

Yes. SKO can be used to seal concrete floors used to house wild animals as long as the floors are clean and dry prior to application. On smooth trowel floors, Seal-Krete Gator Hide, a non-skid additive, should be mixed with Seal-Krete Original Waterproofing Sealer to improve traction. Both products are environmentally safe and completely harmless to animals.

28. My contractor got over spray on the windows of my home. How do I remove the
Seal-Krete Original Waterproofing Sealer?

To remove SKO, soften the coating with Simple Green® or Water-based Goof-Off®
and carefully remove with a straight-edged razor. Windows should subsequently be
rinsed with clean water and soap to remove any residue.

29. My contractor accidentally got over spray on the hood of my car. What can I use to
remove SKO from the paint?

We recommend that you have your car professionally buffed and waxed to remove the sealer. Some cleaners contain harsh chemicals that will mar and dull the paint finish. Removal of SKO from a vehicle should be done by a professional.

30. My hardwood floors are dull and warn. I’ve stripped the floors and would like to apply a coat of Seal-Krete Original Waterproofing Sealer on them to restore the wood. Is this recommended?

No. Seal-Krete Original Waterproofing Sealer should not be used as a clear finish coat on horizontal wood floors.

31. Can I apply SKO on my exterior flagstone patio?

No. Application of Seal-Krete Original Waterproofing Sealer is not recommended for exterior horizontal surfaces. Use Seal-Krete Garage Floor Sealer or Seal-Krete Masonry Sealer for this application.

32. I’d like to apply a clear protective coat over my painted patio floor. Can I use SKO
over a painted, horizontal surface?

No. Seal-Krete Original Waterproofing Sealer should not be used over a painted, horizontal surface. Use Showroom Finish for this application.

33. Can I use SKO on my concrete paver driveway?

No. Seal-Krete Original Waterproofing Sealer should not be used on horizontal pavers as a clear sealer. We recommend Seal-Krete Garage Floor Sealer or Seal-Krete Masonry Sealer for this application.

34. I have clay pavers set in mortar on my lanai. Can I coat them with Seal-Krete
Original Waterproofing Sealer?

NO. SKO is not recommended on clay pavers due to the high density of this substrate. Use Seal-Krete Multi-Surface, clear satin finish, or Seal-Krete Showroom finish, hi-gloss urethane-fortified acrylic sealer.

35. We recently had new concrete countertops installed. Can we use
Seal-Krete Original Waterproofing Sealer to seal and protect them?

No. SKO is not recommended to seal concrete countertops.

36. What type of warranty is available for Seal-Krete Original Waterproofing Sealer?

Seal-Krete offers a limited 5-year warranty on approved substrates. These substrates include, but are not limited to, several types of brick, concrete block and masonry. Please call our Technical Department for specific details regarding warranty.

For more information contact our technical department