Description
Key Features
- Use to set all types of ceramic, porcelain, granite, slate, marble, limestone, and dimensional stone tile
- For interior and exterior use on vertical and horizontal surfaces
- Exceeds ANSI A118.4 and A118.11 requirements
Description
Bostik PM Multi-Purpose Polymer-Modified Thin Set Mortar is for interior or exterior installations to set all types of ceramic, porcelain, granite, slate, marble, limestone, and dimensional stone tiles. Use over properly prepared concrete; structurally-sound, exterior grade plywood (interior/dry use only); cementitious backer board; Bostik Ultra-Set Advanced, Bostik Black-Top, Bostik GoldPlus and existing, well-bonded vinyl composition tile (VCT) or ceramic tile.
Application
Apply a thin coat of Bostik PM™ with flat edge of trowel to achieve a good mechanical bond to substrate. Apply additional mortar with the appropriate size notched trowel. If any evidence of skinning or setting occurs, remove and re-apply fresh mortar. Apply mortar to an area no greater than can be tiled in 30 to 40 minutes. Apply tile using a twisting motion into a fresh bed of mortar to ensure maximum contact and bond. Periodically check back of tile to ensure proper transfer (interior applications—minimum 80% coverage; exterior, wet, or plywood applications—minimum 95% coverage). Temperatures must be between 50°F (10°C)–100°F (37.8°C) during installation.
Note: If the appropriate coverage is not achieved, a larger trowel notch may be required. It may be necessary to back-butter the tile to meet these requirements. For tiles over 15” in any dimension, backbutter with mortar. A finished mortar bed thickness of 3/32” to 1/8” is required
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