Custom Prism Ultimate Performance Grout 17 lb. Bright White

Custom Prism Ultimate Performance Grout in Bright White delivers next-level results for ceramic, porcelain, glass and natural-stone tile installations. Formulated with advanced calcium aluminate cement, this 17 lb powder grout offers uniform, true-to-shade color with no mottling or shading—regardless of tile type, temperature or humidity. Its rapid-setting chemistry builds high early strength and creates dense, stain-resistant joints up to ½″ wide. A unique blend of lightweight recycled glass and fine aggregate sand ensures a creamy, easy-to-spread consistency and makes cleanup a breeze.

Whether you’re renovating a kitchen backsplash, outfitting a spa-style shower, or relaying a feature wall, Custom Prism grout provides durable performance and effortless application. Walkable in as little as 4 hours and requiring no sealer, it resists cracking, powdering and wear so your grout lines stay bright and pristine over time.

Key Features

• Calcium aluminate, cement-based formula for high early strength
• Uniform, consistent Bright White color with no shading or efflorescence
• Rapid-setting—walkable in 4 hours, cures fully in 3–14 days
• Unique blend of recycled glass and fine aggregate sand for smooth, easy application
• Dense, stain-resistant joints up to ½″ wide
• No sealer required; resists cracking, powdering and wear
• Ideal for ceramic, porcelain, glass and natural-stone tile