Laticrete Spectralock Grout Part C - Mushroom #39 Color is a high-performance, epoxy-based grout designed to provide vibrant, long-lasting color and superior stain resistance. Ideal for both residential and commercial applications, this grout part enhances the strength and durability of the overall Spectralock system, ensuring a smooth, consistent finish that resists cracking, fading, and discoloration over time. The Mushroom #39 color offers a soft, neutral tone that complements a wide variety of tile and stone surfaces. Perfect for use in wet and high-traffic areas, Spectralock Grout Part C delivers unmatched performance, ease of cleaning, and a beautiful, lasting appearance.