August Race LR SEALER UV is a liquid-applied protective UV treatment for all types of PVC or Hypalon rib tubes that gives long-lasting protection against both salt and UV damage and leaves a hydrophobic finish to sheet water away. LR Sealer UV is a mixture of polymers and UV absorbers that cross-link together to provide a glossy, durable finish that sheets water away from the tubes. LR Sealer UV has been independently tested and is proven to help reduce UV damage to tubes.