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Mapei Ultrabond ECO 811 Universal Carpet Tile Adhesive
Ultrabond ECO 811 is a high-performance, acrylic latex adhesive designed to provide an aggressive tack for installing all types of carpet tile. Provides a secure, releasable adhesive base for standard PVC-backed carpet tile as well as non-PVC, polyolefin, felt, and bituminous-backed carpet tile. Also suitable for bonding fiberglass-reinforced vinyl sheet flooring.
Works for both permanent and releasable installation systems, and resists high-moisture conditions. Includes Mapei's BioBlock technology, tested to ASTM G21 standards, so it doesn't support mold, mildew, or fungal growth after install (regular cleaning and maintenance still required).
Approved substrates include concrete, plywood, embossing levelers over properly bonded ceramic tile or sheet vinyl, single-layer VCT, primed gypsum underlayments meeting ASTM F2419 compressive strength requirements, and installed Mapei moisture barrier products.
| Spec | Detail |
|---|---|
| Type | Acrylic latex, releasable carpet tile adhesive |
| Use | All carpet tile backings (PVC, non-PVC, polyolefin, felt, bituminous); fiberglass-reinforced vinyl sheet |
| Substrates | Concrete, plywood, embossing levelers, VCT, primed gypsum underlayment, Mapei moisture barriers |
| Installation type | Permanent or releasable |
| Technology | BioBlock (ASTM G21 tested — resists mold/mildew/fungi) |
| Moisture resistance | High |
| Coverage (smooth-backed, U-notch) | 185–245 Sq. Ft. per gallon |
| Coverage (rough-backed/underlayment, square-notch) | Consult trowel chart — varies by backing |
| Package sizes | 1 gallon, 4 gallon |
Can I use this for a releasable (loose-lay) install? Yes — it's formulated to support both permanent and releasable installation systems.
Does it work with all carpet tile backings? Yes — PVC, non-PVC, polyolefin, felt, and bituminous-backed carpet tile are all approved.
Can I use it over existing ceramic tile or sheet vinyl? Yes, with an embossing leveler applied over properly prepared and fully bonded ceramic tile or sheet vinyl.
Does it resist mold and mildew? Yes — BioBlock technology, tested to ASTM G21 standards.
Sku: 1949904
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