No matter what the commercial application, foundation to finish, Bostik has the high-performance adhesive and sealant to meet and exceed the challenges posed by weather, moisture, joint movement or dissimilar materials. Our broad line of adhesives and sealants provides unsurpassed adhesion, durability, flexibility, weatherability and water resistance — and we’ve got the industry-recognized validations to prove it. Available in two- and one-component, pourable and non-sag formulas, and a broad spectrum of colors, Bostik has the product to appease even the most particular architect and the most demanding commercial application.
 

Chem-Calk® 955-SL - Self Leveling
A one-component, pourable, urethane sealant. Its tear and abrasion resistance characteristics, along with its strong bonding ability to concrete, delivers an ideal sealant. Its adhesion ability to many common building materials allows it to be specified for various horizontal sealing projects of dissimilar substrates. Chem-Calk 955-SL is also an excellent crack repair sealant.
Chem-Calk® 2020 - Architectural
A one-component, moisture curable advanced hybrid sealant that offers superior adhesion to vinyl siding, vinyl trim board and a variety of dissimilar surfaces. It is suitable for most building materials, including stone, masonry, wood engineered wood, hardboard, aluminum and a variety of other metals. Chem-Calk 2020 has a non-sag consistency suitable for most vertical applications. Chem-Calk 2020 meets ASTM 920, Type S, Grade NS, Class 50.
Chem-Calk® 915 - Construction
A one-component, polyurethane, non-sag sealant, Chem-Calk 915 meets ASTM C-920, Type S, Grade NS, Class 25, Use NT, as well as US Federal Specification TT-S-00230C, Type II, Class A. Key applications include perimeter sealing of windows and doors, as well as masonry applications such as expansion and control joints.
Chem-Calk® 2000 - Construction
A one-component, advanced hybrid sealant. It is colorfast and has long lasting elastomeric qualities for construction grade applications. Chem-Calk 2000 meets ASTM C-920, Type S, Grade NS, Class 25, Use NT, as well as US Federal Specification TT-S-00230C, Type II, Class A. Primary applications include vinyl window perimeter sealing and engineered trim board applications. Chem-Calk 2000 is also available as textured Chem-Calk 2000T.
Chem-Calk® 1200 - General Purpose
A one component, RTV, general purpose, silicone sealant primarily formulated to be used on non-porous surfaces. Its inherent superior weathering properties allow it to be used on exterior applications that must withstand the harshest of atmospheric conditions. Chem-Calk 1200 has particularly good adhesion to substrates, such as glass, metals, ceramics and most plastics.