SikaColor® 664620 SikaColor® R19 Russet Antiquing Release - SikaColor® antiquing release is a colored powder bond breaker used with SikaStamp® tools. The accent color complements or contrasts with the underlying concrete surface. Additionally, it enhances the transfer of the detailed pattern and texture, and prolongs the surface life of the stamping mat or texturing tool. It is compatible with integrally colored concrete and color hardened concrete.