CRL 3M® 8" 400 Grit PSA Mount Flexible Diamond Disc Silicone Sealants Backer Rod is typically used

Backer Rod is typically used in expansion/control joints where cold-applied sealants are used

neutral cure sealant for use in most common weatherproofing applications on a wide variety of materials

and are compatible with most silicone sealants

120 Degree Hone Angle

CRL 3M® 8" 400 Grit PSA Mount Flexible Diamond Disc Silicone Sealants Backer Rod is typically usedVery Aggressive Grinding Pad Diamonds Offer Longer Life The CRL 3M Diamond Disc offers tremendous life compared to a standard silicon carbide disc. In addition, the edge quality is consistent throughout the life of the disc. This is because diamonds wear much slower than silicon carbide. Since diamonds cut rather than scratch like sandpaper, less pressure is required to accomplish the same material removal. Disc life and finish will always be improved