Never before has a pre-mixed grout offered the superior strength and performance of an epoxy grout, now found in SPECTRALOCK 1! This patent pending, professional grade grout offers all the benefits of SPECTRALOCK epoxy grout without the hassle of mixing. It provides exceptional durability, extreme versatility, and excellent color consistency – even grouting in the most demanding applications. Features & Benefits Locks in color and blocks out stains - Available in all 40 LATICRETE colors, 12 SPECTRALOCK DAZZLE and glow-in-the-dark grout options. SPECTRALOCK 1 has uniform color consistency using SPECTRALOCK sand and is stain-proof^. It is professionally formulated to ensure a long-lasting appearance, year after year. Strongest pre-mixed grout on the market (meets ANSI A118.3) - Tested and evaluated in accordance to ANSI A118.3, SPECTRALOCK 1 outperforms traditional premixed grouts currently available on the market. With a PSI rating 10X higher than standard premixed grouts, it’s the strongest grout available in a pre-mixed formula! It is resistant to cracking and rated for extra heavy foot traffic for an installation that can last a lifetime. No mixing required - Provides quick and easy installations, with no stirring or mixing, and easy water clean-up. The resealable package reduces waste and overall material costs, and can be opened and reused for up to 6 months. No sealing required - Eliminates discoloring, blotches, shading and includes anti-microbial technology to protect the treated article. Low VOC and low odor - Easy and safe to use grout with no epoxy resins. ^ Stainproof (residential installations only) to common household cleaners, liquids and other goods. Clean all spills immediately.