SAY GOODBYE TO INTENSIVE DECK AND CONCRETE MAINTENANCE. Deck staining and power washing look good temporarily, but they always leave you with future hassle and expense. This is because staining and power washing only address the surface level appearance of wood and concrete, leaving them open to moisture. PermaSeal®’s proprietary solution penetrates deep into the pores of wood and concrete, and creates a molecular bond that permanently prevents water rotting. PermaSeal your wood and concrete structures permanently™.