WATERBAN® 60SM is a semi-fibrated asphalt emulsion for application by spray or by brush. It is asbestos free (fibers other than asbestos) and is a semi-mastic paste consistency. WATERBAN® 60 products reduce the transmission of water vapor through concrete but do not stop it entirely. It is frequently desirable not to totally halt the passage of water vapor. If liquid water has somehow found its way into the concrete, damp proofing materials can allow it to escape slowly as water vapor. Damp proofing concrete is relatively low in cost compared to waterproofing because of less total product cost, less surface preparation, and in most cases a lesser thickness of material used.