Tile Subfloor Tile Over Existing Finishes



The Tile subfloor anti fracture Membrane can be applied over most existing finishes providing they are sound, load bearing, and well bonded to the existing substrate.

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  • Seam Cloth 5″ x 16.6′ $19.99
  • Tile Subfloor 3’3″ x 32.8′ (108 sq. ft.) / 1m x 10m $71.28
  • Seam Cloth 5″ x 98.6′ $83.58
  • Tile Subfloor 3’3″ x 98.5′ (323 sq. ft.) / 1m x 30m $245.48
Standard USA Shipping: 3-5 days                 Standard Canada Shipping: 5-7 days

SUPERSEAL Tile Subfloor was extensively tested by the Tile Council of North America, and received the highest rating possible: “Extra Heavy.” This means you can rest peacefully knowing that the best product on the market protects your residential or commercial application.


SUPERSEAL Tile Subfloor and the tiles can be installed in a continuous non-stop installation from beginning to end.


The unique characteristics of SUPERSEAL Tile Subfloor allows modified thinsets to be used with porcelain and ceramic tiles.


The membranes special fleece layers enhance the curing process. It increases tile adhesion by up to 5 times sooner, allowing for grouting of the tiles easier.


The membrane’s unique surface also allows for pencil marks and chalk lines to stay permanent during the layout procedure. This is a huge advantage, especially when time is money.


Thousands of dimpled concrete pillars isolate the tiles from potential floor base cracks. The membrane’s unique hydrating process allows the thinset to maximize the bond within the tile floor assembly.


The preferred and most common installation of heat mats is directly on the substrate; however, you can also install heat mats on top of SUPERSEAL Tile Subfloor.

Tile Subfloor Installation Instructions

Apply Thinset

Press in tile subfloor

Install Tiles


I have linoleum or VCT in my kitchen, but would like to put tile. Do I need to remove the linoleum in area where it is not fully bonded?

Check for blisters or delaminated in the main body and remove. Rent a floor sander and scarify the surface to allow good bonding of the thinset. Use fast-set thinset mixed to a more liquid consistency so that the tile subfloor when installed is completely contact the entire surface.

Can I apply SUPERSEAL over existing tiles?

Yes, providing the tiles are clean and free of silicone and waxes. Ensure they are well bonded to the substrate and sanded with a rotary floor sander with extra course sanding disk to improve adhesion. Use fast-set thinset mixed to a more liquid consistency so that the tile subfloor when installed is completely contact the entire surface.

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For Higher Volume orders contact us directly at info@superseal.ca

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