PRODUCT DESCRIPTION
Bostik BST™ Wood Flooring Adhesive and Moisture Vapor Retarder is an easy-to-trowel urethane adhesive and moisture control membrane. Its superior properties provide a tough, flexible, tenacious bond to a variety of surfaces. Bostik’s BST™ elastomeric characteristics allow the adhesive to move with the wood as it expands and contracts over the life of the floor. Bostik BST™ exhibits exceptional green grab making installation easier as it minimizes slipping of the flooring. This adhesive has low VOC’s (as calculated per SCAQMD Rule 1168) and does NOT contain any water.
FEATURES of Bostik BST™
- Great green grab minimizes slipping
- Moderate moisture vapor protection
- Low VOC
APPLICATIONS of Bostik BST™
- Bostik’s BST™ may be used to adhere all engineered, solid (adhesive only), bamboo (adhesive only), cork, and parquet hardwood flooring (adhesive only) designed for glue-down applications. This adhesive can also be used to install plywood as described, as well as ceramic tile, marble, and stone inlays for light commercial and/ or residential applications.
- Bostik’s BST™ may be used over all properly prepared substrates common to hardwood flooring installations including: concrete, plywood, OSB, well bonded vinyl/VCT and ceramic tile, cement backer board, gypsum underlayments (dry, above-grade), cement patch/underlayments, radiant-heat flooring, and properly prepared terrazzo.
About Prostech
Prostech offers specialty materials (adhesives, tapes, thermal interface materials, insulating materials, sealants, PCB protection materials, …) along with manufacturing solutions. We proudly serve a wide range of industries and are an authorized distributor for leading global manufacturers of industrial materials and equipment. Our product range is designed to deliver customized solutions that address each customer’s unique needs.
With years of experience and a successful project history, we are confident in our ability to provide comprehensive material solutions. These solutions effectively tackle the challenges manufacturers face. To explore our full product catalog, simply click here. Our dedicated team is ready to assist with:
- Provide quotation, sample, TDS/MSDS, and technical consultation
- Testing sample quality and verifying product compatibility in our laboratory
- Customizing material formulas for special applications
- Adapting product sizes, quantities, and packaging to meet specific needs
- Offering expert advice on suitable equipment and automation processes
- Delivering technical training and on-site support for optimal product use
Moreover, Prostech ensures the safe and accurate global delivery of all materials, including “dangerous goods”, in compliance with legal regulations. For personalized technical support or to receive a quotation, please contact us today.
CHEMICAL & PHYSICAL PROPERTIES | |||
Use Environments | Residential | Yes | |
Offices/Light Commercial | Yes | ||
Heavy Commercial | Yes | ||
Hospital | No | ||
Exterior | No | ||
Wet Areas | No | ||
Substrates | Concrete | Yes | |
Plywood | Yes | ||
OSB | Yes | ||
Recycled Rubber Underlayment | Yes | ||
Well-Bonded Vinyl | Yes | ||
Terrazzo | Yes | ||
Ceramic Tile | Yes | ||
Cement Backer Board | Yes | ||
Gypsum Underlayments* | Yes | ||
Cement Patch/Underlayment | Yes | ||
Flooring Types | Solid Hardwood | Yes | |
Engineered Hardwood | Yes | ||
Bamboo | Yes | ||
Cork | Yes | ||
Parquet | Yes | ||
Plywood | Yes | ||
Ceramic Tile, Marble, Stone Inlays** | Yes | ||
Cured Physical Properties | Cure Time*3 |
| |
Light foot traffic | 6 to 8 hours | ||
Normal foot traffic | 8 to 12 hours | ||
Water Vapor Permeability*4 | < 0.9 | ||
Concrete Moisture Vapor Limits for subfloor moisture vapor protection: | |||
For engineered hardwood | |||
ASTM 1869 Calcium Chloride Method | ≤ 15 lbs/ 1000 sq ft /24 hrs | ||
ASTM 2170 Relative Humidity Test | ≤ 87% RH | ||
For solid hardwood or bamboo | |||
ASTM 1869 Calcium Chloride Method | ≤ 3 lbs/ 1000 sq ft /24 hrs | ||
ASTM 2170 Relative Humidity Test | ≤ 75% RH | ||
Elongation | >180% | ||
Service Temperature | -40°F to 150°F (-40°C to 66°C) | ||
Uncured Physical Properties | Ease of Troweling | Easy | |
Odor | Mild | ||
Open/Working Time*5 | 180 minutes | ||
Color | White | ||
Density (lbs/gallon) | 13.7 | ||
Percentage of Water*6 | 0% | ||
Percentage of Adhesive Coverage Required: | For Moisture Protection | For Bond | |
Engineered | 100% | >80% | |
Solid | 100% | >95% | |
Application Temperature | 50°F to 100°F (10°C to 38°C) | ||
Chemical Properties | Chemistry Type | 1-Part Urethane | |
Adhesive Type | Moisture Cure | ||
VOC Compliant (tested per EPA Method 24) | Yes (22 g/L) | ||
Flash Point, closed cup | 142°F (61°C) | ||
