Seal Bond® 450 High Movement Adhesive/Sealant

• Safe to Use - solvent & Isocyanate free
• Ultra-low VOC’s, 21.22 g/L
• Non-silicone
• Non-flammable
• Primerless bonding to most surfaces
• Paint compatible
• Low odor
• Extremely low shrinkage - 100% solids
• Non-staining
• Mildew resistant
• Bonds to Kynar
• Non-slump, applies vertically and overhead
• ±50% joint movement

• Does not dry or become brittle
• Water resistant
• Permanent elastomeric bond

• Single component high solids formula.
• Easily gunnable between 40°F and 100°F.
• Cures rapidly to reach optimum strength within 7 - 14 days, full cure 21 days.
• SB 450 can be installed on damp surfaces which is defined as when no moisture is transferred to the skin when the substrate is touched.

Application

Remove all dirt, oil, loose paint, frost and other contamination from all working surfaces. Maintain SB 450 at room temperature before applying to ensure easy gunning and tooling. Test and evaluate to ensure adequate adhesion. Carefully gun the sealant with a smooth, continuous bead. If tooling is needed, do so within fifteen minutes of application.

Concrete

Prior to application remove any residual contamination by mechanical abrasion, sand blasting or power washing. On green concrete, remove all release agents and loose concrete. Dry all visible and/or standing water. Install an appropriate backer rod to avoid three-point bonding.

Metal

Prepare all metal to ensure maximum adhesion. Remove all rust, scale and residue using a wire brush. Remove films, loose or inappropriate coatings and oils with an appropriate solvent such as alcohol. Seal Bond recommends that coated substrates be tested for proper adhesion prior to starting a project to determine suitability for use.

Wood

Wood should be clean, sound and dry prior to sealant application. Allow treated wood to weather for six months prior to application. Remove all coatings and paint to ensure proper adhesion. SB 450 is not recommended for use on fire retardant lumber.

Priming

In most applications SB 450 will not require a primer. However, certain substrates may require a primer to ensure a long lasting bond and waterproof seal. It is the applicator's responsibility to determine whether or not a primer is needed in their specific application.

Clean Up

Clean tools and any uncured adhesive with mild solvent such as mineral spirits.

• ASTM C920, Type S, Grade NS, Class 50 Uses NT, T, G, A & O
• Federal Specification TT-S-00230-C Type II, Class B
• Conforms to OTC Rule for Sealants and Caulks
• May contribute to LEED V4 EQ Material Resource Credit 4.1 - Adhesives and Sealants
• Meets requirements of California Regs: CARB, BAAQMD and SCAQMD