Black Jack® Silicone Roof Patch Boat & Marine Supplies Provides supplemental heat

Provides supplemental heat

Durable non-conductive PVC will not rust or corrode

so this choice will also save you some money

The dummy knob has a traditional tulip shape and is ideal for installation on non-secure

concrete patcher

Black Jack® Silicone Roof Patch Boat & Marine Supplies Provides supplemental heatBlack Jack Silicone Roof Patch is a heavy duty, white rubber sealant that provides the ultimate waterproofing protection from the elements. This product has exceptional adhesion and flexibility and is compatible with most building materials. Use to make repairs on damaged roof areas. In hot or cold climates, this waterproof seal will permanently stretch to prevent cracking and peeling.