This is a 20-liter bucket of Insucoat Water Based Primer manufactured by Insutech, a specialized bituminous emulsion for waterproofing.The primer is used to prepare surfaces like concrete, brick, and wood before installing bituminous APP waterproofing membranes.It dries to form a flexible, black protective film that acts as a barrier against water vapor transmission.The product is applied cold using a brush, roller, or spray, and covers approximately 70 square meters.