Mapei 5221 Moonbeam Mapesil T Plus Silicone Caulk is a professional-grade, 100% silicone sealant designed for superior adhesion and flexibility across multiple substrates. Engineered for heavy-traffic and expansion/movement joints, this sealant exceeds ASTM and ANSI standards, making it ideal for demanding residential and commercial applications. Its low-sheen finish is color-matched to MAPEI’s grout palette for a seamless look, while advanced formulation ensures durability in both wet and dry environments.
Perfect for interior and exterior installations, Mapei 5221 Moonbeam Mapesil T Plus Silicone Caulk offers excellent elongation and flexibility for change-of-plane and joint applications in tile or stonework. It is freeze/thaw-resistant after curing and can even be used in pools and spas with proper water chemistry. With built-in mold and mildew resistance, this sealant offers long-lasting protection and performance.
- 100% silicone sealant for maximum flexibility and durability
- Color-matched to MAPEI’s grout palette for a coordinated finish
- Low-sheen formulation complements grout joints for a uniform look
- Rated for heavy-traffic and expansion/movement joints
- Suitable for interior and exterior installations, wet or dry conditions
- Excellent elongation for change-of-plane and joint applications
- Can be used in pools and spas (requires 7-day cure and proper pH/chlorine levels)
- Mold and mildew resistant for long-term protection
- Freeze/thaw-resistant after a 72-hour cure at 73°F (23°C) and 50% RH
- Ideal for countertops, vanities, sinks, bathtubs, showers, steam rooms, backsplashes, and fixtures
Mapei 522 1 Moonbeam Mapesil T Plus Silicone Caulk delivers exceptional performance and versatility for sealing applications where flexibility and durability are critical. Its advanced formulation ensures a professional finish that withstands moisture, movement, and time.
