I used the mesh tape for Durock and went over all joints with the mortar mix I planned to use installing my tiles. Let the mortar dry completely. Then, just follow the directions on the bucket. I tackled a shower surround with two large niches for my first tile job. This bucket was plenty for two coats on everything as well as a section on the floor in front of the shower. Great product and easy to use. Be sure to follow the directions carefully.

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USG DUROCK Brand Liquid Waterproofing Membrane 1 Gallon

Q: Can this be used to water proof a leak on existing shower tile?

No. This product is for waterproofing the substrate behind the tile. You may need to peel off the tile to get to the substrate. But it seems you need to find the source of the leak first then use this product as part of the repair.

Q: I have cement subfloor in my shower . Can I use this instead of a shower pan liner?

Hi, A liner would be preferable, but this membrane will work too, assuming the concrete is stable, there is a natural slope to the drain and there are no breaches. If you use a Durock shower installation kit it adds a natural slope to a center drain installation. That would be preferable then use the Durock membrane over the top before using mastic and tiling.

Q: Is this like flex seal liquid?

If you are referring to the “flex seal brand” sealer that is on the market it doesn’t compare.This liquid waterproof membrane is like a very thick paint that goes on smooth with roller or brush.this is a very good product that I have used on several occasions..... it provides excellent waterproofing qualities if used as directed p,usually two coats will do the trick.

Product ID: 514739509

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Details

Material
Acrylic
Brand
USG Interiors
Style
Compact
Item weight
0.01 Ounces
Water resistance level
Waterproof

🔗Bonds seamlessly to metal & plastic drains

⏱️Fast drying for rapid project completion

🛠️Versatile application: roll, brush, trowel, spray

Frequently Bought Together

USG DUROCK Brand Liquid Waterproofing Membrane 1 Gallon

XFasten Waterproofing Membrane Sheet, 6” x 75 Ft Shower Waterproofing Membrane Tape for Underlayment Tile, EPDM Underlayment, Cement Board Tape

One Sight Waterproofing Membrane Fabric, 6 Inch X 75 Foot Roll Anti-Fracture Membrane Fabric, Non-Woven Waterproof Fiberglass Mesh Tape for Bathroom Shower Walls, Floors, Tiles

Description

💧 Seal it fast, seal it smart — waterproofing redefined.

STEAM READY SEAL - Perfect for steam rooms and showers without extra vapor barriers—built for high humidity.
RAPID DRYING POWER - Cut downtime with a membrane that dries fast, accelerating your project timeline.
COMPACT EFFICIENT - 1-gallon size with acrylic formula delivers professional-grade waterproofing in a sleek package.
MULTI METHOD APPLICATION - Apply your way—roll, brush, trowel, or spray for ultimate flexibility on site.
UNIVERSAL DRAIN COMPATIBILITY - Bonds directly to stainless steel, PVC, and ABS drains for a watertight finish.

USG DUROCK Liquid Waterproofing Membrane is a fast-drying, acrylic-based liquid membrane designed for waterproofing and crack isolation. Suitable for steam rooms and showers without additional vapor retarders, it can be applied by rolling, brushing, troweling, or spraying. It bonds directly to stainless steel, PVC, and ABS drains, ensuring a reliable, versatile seal in a compact 1-gallon container.

Specifications

Manufacturer	USG
Item Weight	0.28 g
Package Dimensions	19.81 x 19.71 x 19.2 cm; 0.28 g
Manufacturer reference	0
Size	1 Gallon
Colour	Blue
Style	Compact
Material	Acrylic
Item Package Quantity	1
Batteries included?	No
Batteries Required?	No

Have a Question? See What Others Asked

Can this be used to water proof a leak on existing shower tile?

what tape to use?

I have cement subfloor in my shower . Can I use this instead of a shower pan liner?

Is this like flex seal liquid?

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