RepCon® V/O-HS

Application

Surface Preparation: The concrete must be sound and free of all foreign material, including oil, grease, dust, lai-tance or other surface contaminants. For maximum dura-bility, saw cut the perimeter of the repair 1/8” deeper than the depth of the repair, creating a notched, reinforced edge. Mechanically abrade the surface by an engineered approved method in accordance with ICRI 310.2 Guide-line to a minimum CSP 5. All concrete surfaces to be repaired must be in a saturated-surface-damp (SSD) condition with no standing water on the surface.

Priming/Scrub Coat: Thoroughly clean all exposed steel reinforcing of rust and coat with SpecPrep SB.

Prepared concrete must be SSD and primed with a spray or brush coat of SpecPrep SB and the repair mor-tar applied wet on wet or up to the recommended open time (see SpecPrep SB technical data sheet).

As an alternative, apply a scrub coat of the properly mixed repair mortar by scrubbing a thin layer into the pre-dampened substrate with a stiff brush. Place the repair mortar immediately before the bond coat dries.

Mixing: Mix 6.25 – 6.75 pints (depending on desired consistency) of clean water per 50 pound bag of material. Mix with a low speed drill. Add recommended amount of clean water into the container, followed by the RepCon® V/O-HS. Mix 2 to 3 minutes. Mix only what can be applied within the setting period.

Placement: Trowel RepCon® V/O-HS firmly into the pre-pared area, ensuring intimate contact with the bonding surface. Use slightly more material than is needed and roughly shape during placement.

After the initial set, when RepCon® V/O-HS is surface hard, shave the material to the desired final shape using a steel trowel. Maximum depth of neat repair mortar is 2” for each lift. Additional lifts can be placed after the origi-nal lift has achieved set. The original lift should be left with a rough surface to improve bond between lifts.

Finishing/Curing: Finish the repair material to the de-sired texture to match the surrounding concrete. Rep- Con® V/O-HS is self-curing under most conditions. In severe drying conditions, use an ASTM C309 compliant, water based SpecChem curing compound.