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1 Gal. Aqua-Proof Prep Roof Patch Excellent for Waterproofing and Crack Prevention

  • Waterproof & Crack Prevention Membrane
  • Patch leaks, repair cracks, seal joints & finishes
  • 100% waterproof under tile and stone
  • See More Details

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Product Overview

Lanco Aqua-Proof Prep is a 1-part, ready to use, elastomeric waterproofing and crack prevention membrane. Its multi-use nature makes it ideally suited for a wide variety of applications where a waterproofing solution is needed, such as: to repair cracks and leaks, seal joints and flashings, waterproof under tile and stone and as a waterproofing shower pan liner. This monolithic flexible membrane provides excellent performance when used as a base coat over existing surfaces and performs extremely well during continuous water immersion test. Can be used for interior or exterior, on horizontal or vertical surfaces for residential or commercial applications. Waterproofs concrete and protects from silage attack.
  • Applied by brush, roller, trowel or spray
  • Non-toxic, hazardless and free of solvents or plasticizers
  • Quick drying, typically touch-dry in 1-hour
  • Durable, highly flexible with excellent crack-bridging properties
  • Low water vapor permeability
  • High alkalinity resistance
  • Non staining and stain preventive
  • Made in the USA
  • California residents

Info & Guides

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Price
Ratings
(1361)
(18)
(177)
(271)
Application MethodCaulk Gun/Dispenser,TrowelBrush On,Roll On,Spray On,TrowelTrowelCaulk Gun/Dispenser,Trowel
FeaturesAlgae Resistant,Corrosion Resistant,Extreme Cold & Ice,Extreme Heat,High Impact/Hail Resistant,High Wind Resistant,Impact Resistant,Mildew Resistant,Paintable,Rust Resistant,Water Resistant,WaterproofAlgae Resistant,Mildew Resistant,Paintable,Quick Dry,Water Resistant,WaterproofNo Additional FeaturesAlgae Resistant,Corrosion Resistant,Extreme Cold & Ice,Extreme Heat,Mildew Resistant,Rust Resistant,Water Resistant,Waterproof
Roof Repair TypeRoof SealantRoof PatchRoof PatchSBS
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Specifications

Dimensions

Container Size
1 Gallon
Product Depth (in.)
8
Product Height (in.)
8
Product Size (oz.)
128
Product Width (in.)
8

Details

Application Method
Brush On,Roll On,Spray On,Trowel
Coating Base
Solvent
Cold Applied
Cold Applied
Color Family
Light Blue
Color/Finish
Light Blue
Features
Algae Resistant,Mildew Resistant,Paintable,Quick Dry,Water Resistant,Waterproof
Returnable
90-Day
Roof Repair Type
Roof Patch
Roofing Product Type
Roofing Repair

Warranty / Certifications

Manufacturer Warranty
NONE

Questions & Answers

7Questions10Answers

I'm trying to figure out the sequence of products to fix ponding/on a flat roof that is torchhdo...

Asked by nickname December 12, 2020
2
Answers

Came spilled inside the box and dried. Poor sealing on the container

How many coats do I need?

Asked by SteveZ October 26, 2020
2
Answers

One should work, as long as you make it thick enough. It has a consistency of thick paint, I used a sponge type brush and kind of "troweled" it around.

How much do I need to cover 250 sq. ft.?

Asked by SteveZ October 26, 2020
1
Answer

Hello SteveZ, the Aqua-Proof Prep should be applied at a rate of 50 sq. ft. per gallon. If you have 250 sq. ft., the amount per sq. ft. is 5 gallons.

How to apply lanco rubber products to a flat roof

Asked by Martin October 25, 2020
1
Answer

Hello Martin, you can use a brush, roller, or an airless spray to apply the product, applying the Aqua-Proof Prep at a rate of 50 sq.ft. per gallon. It is very important that the roof should be top coated with a Lanco roof coating after the application of the Aqua-Proof Prep.

Can you use this as a below grade waterproofer on cement block?

Asked by Cosmo December 28, 2019
1
Answer

Hi, thanks to contact us. Yes, is a great product for below grade waterproofing.

does anyone know if this is safe for a epdm roof (rubber roofing) or possibly another product like black lap but cheap?

Asked by spik8185 November 2, 2019
1
Answer

Hi, yes you can use it in EPDM rubber roofs. Thanks for contact Lanco.

Can this product be colored ? How does it withstand sun exposure?

Asked by Looms September 29, 2019
2
Answers

Applied to the metal roof on the barn a year ago. It seems to be holding up well. Coated it with rubberized roof coating.

Customer Reviews

  • 4.3
    out of 18 reviews
  • 100% recommend this product
Filter by:
Showing 1-10 of 18 reviews
I use it to water proof foundation...
I use it to water proof foundation
by HomeDepotCustomer
I call this a primer, it adheres very well. top coat adherence to that I call it a great product
I call this a primer, it adheres very well. top coat adherence to that I call it a great product
by Bunkie03
Rating provided by a verified purchaser...
Rating provided by a verified purchaser
by HomeDepotCustomer
Rating provided by a verified purchaser...
Rating provided by a verified purchaser
by HomeDepotCustomer
1 person found this helpful
Poor sealing, better use Lanco Siliconizer...
Poor sealing, better use Lanco Siliconizer
by Sal
Response from Lanco Product ExpertDec 26, 2020
Hi Home Depot Customer,we're sorry to hear that it did not work as expected, but we are happy to hear that you are satisfied with the Lanco Siliconizer . But feel free to contact Lanco's technical support team at 786-495-5944 for any information that you might need.
Rating provided by a verified purchaser...
Rating provided by a verified purchaser
by HomeDepotCustomer
This was a horrible purchase. The product came spilled all...
This was a horrible purchase. The product came spilled all over the inside of the box with the lid half open and dried product all over the bucket and the packaging. I went out and bought a diffrent product. I will be returning this if possible.
by CHRISTI
Response from Lanco Product ExpertDec 24, 2020
Hi Christi, we are so sorry that you had such an unsatisfactory experience with the shipping of our product, but we really appreciate you bringing this issue to our attention, please feel free to reach out to our technical support team at 786-495-5944.
Put it on a flat roof to seal it. ...
Put it on a flat roof to seal it. Time will tell. We have one small area which we have to touch up but no other leaks during our last heavy rain fall.
by Sandy
Easy to apply and dries fast. Be aware that it...
Easy to apply and dries fast. Be aware that it is not uv rated so you have to cover it with something, I just painted it with white latex paint. I do have some cracks that formed but I think it was because it was exposed to freezing temperatures. I used it on my rv roof and have had no leaks. Good product.
by Andrew
Not sure yet as we have not had heavy rain/snow...
Not sure yet as we have not had heavy rain/snow and we just applied the product? Application was easy and event free!
by Rich
Showing 1-10 of 18 reviews