The SEI Graffiti Proofer & Concrete Curing Agent is a penetrating, permanent weatherproofing and Graffiti Proofing treatment. The SEI Graffiti Proofer & Concrete Curing Agent is a certified and accredited concrete curing agent as specified by ASTM standards. The SEI Graffiti Proofer & Concrete Curing Agent shows no deterioration from ultraviolet rays, ozone, salt spray or acid rain. SEI Graffiti Proofer allows for expansion, contraction, building movement and temperature extremes. The SEI Graffiti Proofer will allow moisture vapor to escape while not allowing moisture to enter the structure. This product is non-toxic, environmentally friendly, non-reactive and Pers onal Protection has been rated as a B.

5 gallon pail.