This product is available in West Virgina only!

Please contact us if you would like additional details and/or more information.

View the WV Location Information

MasterProtect H 400 is a water-based 40% silane penetrating sealer, formerly called Enviroseal40.  MasterProtect H 400 provides long-lasting protection against freeze/thaw cycles, chloride or moisture intrusion. Ideal for traffic-bearing surfaces.