Dynaflex SC Joint Sealant is an advanced one-part, non-sag, tamper-resistant elastomeric sealant based on silyl-terminated polyurethane (STPU) technology. It combines the high durability and security of two-component sealants with the simplicity and ease of a one-component system. This sealant is specifically engineered to deliver high tensile and tear strengths, excellent abrasion resistance, and an average ultimate hardness of 55, while accommodating up to 25% total joint movement.
Key Features and Benefits:
- High Strength and Durability: Offers significant resistance against abrasion and tearing, ensuring longevity and maintenance of performance in demanding environments.
- Tamper Resistant: Specially formulated to resist idle tampering and acts of vandalism, ideal for use in high-security areas like correctional facilities.
- Flexible Application: Maintains flexibility better than epoxy, suitable for a variety of public and institutional settings.
- Customizable Appearance: Available in two standard colors and can be painted to match adjacent surfaces for aesthetic coordination.
Applications: Dynaflex SC is primarily used in institutional and correctional facilities where high security and durability are necessary. It is also effective in other public buildings and facilities susceptible to vandalism.
Installation Tips:
- Surface Preparation: Ensure all surfaces are clean, dry, and free of contaminants. Use appropriate methods for removing old caulking from masonry and ensure metal surfaces are free of rust and corrosion.
- Priming: Use P-75 primer on porous substrates and P-100 on steel, aluminum, and glass to ensure strong adhesion.
Limitations:
- Not suitable for active joints experiencing movement greater than 12.5% in compression or extension.
- Avoid use in areas exposed to harsh chemicals like acids, strong alkalis, and ketones.
Technical Data:
- Complies with Federal Specification TT-S-00230C, Type II, Class B, and ASTM C920, Type S, Grade NS, Class 12.5, Use T1, M, G, A, and O.