CRL Limestone Smooth Polyurethane Construction Sealant - Cartridge

  • One-Part Smooth Finish Formula with Primerless Adhesion on Most Common Construction Surfaces Including KYNAR® Coated Metals AAMA Approved
  • VOC Compliant - Only 9 g/L
  • UV Resistant/Non-YellowingSealant Estimator Chart
CRL M64 is a one-part, moisture curing, gun grade modified polyurethane sealant. It does not require a primer on most common construction surfaces. CRL M64 is durable, flexible, and offers excellent performance in moving joints.