Bostik Chem-Calk 916 White Textured Urethane Sealant, 10.1 Oz Case

Description

Chem-Calk 916 is a white, one-component textured urethane sealant supplied in 10.1 oz cartridges for masonry, concrete, window, door, control, and expansion joints. The textured finish helps the bead blend into concrete and masonry surfaces better than a smooth sealant in many repair details.

Chem-Calk 916 Benefits

• Textured polyurethane bead supports transitional sealing on concrete, masonry, and rough surfaces.
• Class 25 movement rating gives flexibility for properly designed building joints.
• Moisture cure forms a tough, flexible rubber after exposure to atmospheric moisture.
• Non-sag toothpaste-like consistency helps the bead stay placed on vertical joints.
• Cartridge packaging works with standard professional caulk guns for field service and construction crews.

Manufacturer information describes 916 as capable of dynamic joint movement totaling 50 percent of original joint geometry, or plus and minus 25 percent. Its physical properties are listed as stable across a broad weather range when applied within the technical limits.

Chem-Calk 916 Applications

• Perimeter sealing in masonry construction.
• Window and door perimeter joints in concrete or masonry walls.
• Construction joints, control joints, and expansion joints.
• Concrete weather sealing where a textured bead helps match the surface.
• Repair work where white color is required in a textured urethane sealant.

Surface Preparation and Use

Remove laitance, dust, oil, old failed sealant, and loose material before applying. Use backer rod or bond breaker tape where the joint design calls for two-sided adhesion. Tool the bead after placement to press material against both sides of the joint and shape the textured transition before skin forms.

Technical Details and Documentation

Published data lists ASTM C920 Type S, Grade NS, Class 25, Use NT, plus Federal Specification TT-S-00230C Type II, Class A. For manufacturer background, visit Bostik. Review the technical data sheet before approving primer, joint depth, paint timing, or exposure limits.

Dispensing and Ordering Help

This SKU is the white 10.1 oz cartridge format packed 24 per case. Confirm color, texture, joint size, and expected movement before ordering for a project. For related construction options, browse Chemical Concepts sealants.

For help matching Bostik sealants to concrete, masonry, window, or door work, call (800) 220-1966 or email [email protected].