THIN BONDING APPLICATIONS
THIN VENEER ADHESION MORTAR – XP400
Standard Preblended Polymer Modified Thin Set Mortar (VM-03)
SUPERIOR WORKABILITY & ADHESION. MAXIMUM PRODUCTIVITY.
SPEC MIX® Adhered Veneer Masonry Mortar XP400 is a premium preblended polymer modified thin set mortar specifically designed to bond masonry thin veneer units including manufactured and gauged or ungauged natural thin stone and thin brick to substrates for interior and exterior thin bonding applications. Its innovative, anti-sag formulation, and optimized sand gradation, provide superior workability, adhesion, and durability, crucial to the application. XP400 exceeds ANSI A118.4 standards and carries a 3 to 5 year extended warranty.
SPEC MIX XP400 is engineered specifically to adhere thin cut natural and manufactured masonry veneer units utilizing performance additives to increase sag resistance to speed installation and increase bond strength to reduce callbacks. SPEC MIX XP400 exceeds ANSI A118.4 and applicable requirements as well as TMS 402/602 Building Code Requirements and Specification for Masonry Structures shear strength requirements when tested in accordance with ASTM C482.
PRODUCT FEATURES
XP400 is the masonry veneer adhesive formulated to meet ANSI A118.4 standards. Backed by 3 & 5 year warranties and preferred by masons, XP400 is the mix with exceptional workability and bond strength.
Choose the Right Product with the Adhered Veneer Mortar Product Selection Guide
SPEC MIX XP400 IS THE LOW-SAG, HIGH BOND ADHESIVE MORTAR THAT MAXIMIZES DAILY PRODUCTION
SUITABLE SUBSTRATES
When mixed with clean water, SPEC MIX Thin Veneer Adhesion Mortar XP400 can be used with the following:
- Interior and exterior thin veneer installations
- Hardened scratch coats
- Concrete (properly prepared and free of curing compounds)
- Concrete masonry units
- Cement backer boards
- Gypsum wallboard with or without primer (consult with primer manufacturer for suitability) (interior installation only)
| XP400 Engineering Data (laboratory prepared) | ||
|---|---|---|
| *Due to the wide variability in natural stone physical characteristics and strengths, testing is performed with manufactured tile formats. | ||
| ANSI A118.4 Requirements | SPEC MIX XP400 (typical results) | |
| Porcelain Mosaic Tile Shear Strength, PSI | ||
| At 1 Day | > 75 PSI (0.5 MPa) | > 150 PSI (1.0 MPa) |
| At 7 Days | > 200 PSI (1.3 MPa) | > 250 PSI (1.7 MPa) |
| At 7 Days Dry / 7 Days Water Immersion | > 150 PSI (1.0 MPa) | > 200 PSI (1.3 MPa) |
| At 28 Days | > 200 PSI (1.3 MPa) | > 350 PSI (2.4 MPa) |
| At 28 Days with Freeze-Thaw Cycyling | > 175 PSI (1.2 MPa) | > 200 PSI (1.3 MPa) |
| At 28 Days Heat Aging | > 200 PSI (1.3 MPa) | > 400 PSI (2.7 MPa) |
| Quarry Tile Shear Strength, PSI | ||
| At 28 Days | > 150 PSI (1.0 MPa) | > 200 PSI (1.3 MPa) |
| At 28 Days with Freeze-Thaw Cycling | > 100 PSI (0.7 MPa) | > 150 PSI (1.0 MPa) |
| TMS 402/602 Requirements | SPEC MIX XP400 (typical results) | |
| Ceramic Tile Shear Strength, PSI | ||
| At 28 Days (ASTM C482) | > 50 PSI (0.3 MPa) | > 250 PSI (1.7 MPa) |
| XP400 Approximate Coverage Rates | |
|---|---|
| Application | 50 lb (22.6 kg) BAG |
| Scratch Coat - 1/4 in x 3/8 in (6.3 mm x 9.5 mm) NOTCHED TROWEL | 60 to 70 ft² (5.5 to 6.5 m²) |
| Scratch Coat - 1/2 in x 1/2 in (13 mm x 13 mm) NOTCHED TROWEL | 40 to 45 ft² (3.7 to 4.2 m²) |
| Coating Masonry Unit Method | 30 to 33 ft² (2.8 to 3.0 m²) |
| Note: Coverage will vary depending on the substrate, site conditions and construction practices. | |