SUBSTRATE PREPARATION: Cleaning shall consist of the removal of all loose material and substrate contaminants and shall be accomplished by pressure washing (min. 5000 psi) or sandblasting. PATCHING: Patching, filling and repairing of holes, cracks, breaks, broken bricks and irregular surfaces will be accomplished by the application of Infrastructure's trowel grade 100% epoxy mastic which is formulated with ingredients that will not promote corrosion of the steel it may come in contact with.

SEALING/PRIMERS: Infrastructure's penetrating sealer is designed to penetrate the concrete, block and brick pore structures of the manhole. The 100% epoxy, zero VOC's penetrating sealer/primer is formulated to have a coefficient of expansion and contraction similar to most of the substrate.

FRAME & CHIMNEY: The frame and chimney coating is a rubber reinforced trowel grade mastic. This product is formulated to withstand vehicle traffic and freeze thaw cycles. COATING: Infrastructure's top coat application must be applied at a minimum thickness of 125 mils, or as required by a design engineer. Final thickness will increase in areas of major damage. The finished topcoat shall be uniform in color and exhibit superior bond strength to the substrates beneath the coating.

FINAL ACCEPTANCE: Acceptance criteria shall be based on properly completed rehabilitation of the manhole and in accordance with the specifications.

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