Thompson's WaterSeal TH.024111-03 Multi-Surface Waterproofer, 1.2 Gallon BF20 but you don't have to

but you don't have to be one of them

1/4" Standard

Auto-ground clip assures positive ground

attaches easily in minutes

Sticks to wet surfaces

Thompson's WaterSeal TH.024111-03 Multi-Surface Waterproofer, 1.2 Gallon BF20 but you don't have toThompsons WaterSeal Clear Multi Surface Waterproofer provides proven waterproofing protection for wood, concrete and brick. Highlights: Size: 1. 2 Gallon Sheen: Flat Color: Clear Indoor or Outdoor: Outdoor Full Cure Time: 24 hours Time Before Recoating: 45 days VOC Level: Low VOC Paintable: Yes Coverage Area: 468 square feet Transparency: Fully Transparent Applicable Materia: Brick, Wood Application Method: Brush, Roller, Spray Prevents water damage