Concrete Deck System (Above Grade)

The MULTICOAT ABOVE GRADE WATERPROOFING SYSTEM is a multi-layer protective coating which combines an elastomeric waterproofing membrane, MULASTICOAT, with resin modified cementitious top coating, SCRATCH KOTE. This system is designed as a underlayment waterproofing material to be topped with lightweight concrete, hard rock or similar materials for balconies and walkways. It can be applied to plywood, OSB, concrete and most other surfaces in need of waterproofing.

*Can also be used as an Underlayment Crack Isolation System

  • Low Cost
  • Superior Waterproofing
  • Hard and Durable
  • Excellent Weather-Salt-Fire Resistance
  • Maintains Surface Integrity over Minor Surface Movements
  • Water base-Green Friendly
  • High Impact and Abrasion Resistance
  • Chemical Resistant for Pool Decks
  • Superior Bonding to Substrate
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More Information

Concrete Deck System (Above Grade)

Coverage:

MULASTICOAT: 80 to 100 sq. ft per gallon
Stitch Bond Polyester Fabric: 10″ x 324′ rolls
MULTI-BASE: 60 to 80 sq. ft. per bag
SCRATCH KOTE 2000: 175 sq. ft. per bag

Application & Use:

Flash all posts, drains, coves, penetrations, and other irregularities with MULASTICOAT. Embed stitch bond polyester fabric into wet MULASTICOAT. Then apply additional MULASTICOAT to saturate fabric, and allow to dry. Appropriate drip edges should be used as per local building codes.

PLYWOOD: Mix and install MULT-BASE into metal lathe and trowel to thickness of lathe so that the lathe is visible but not felt. Allow to dry. Apply MULASTICOAT over entire area in two coats with brush, roller, airless sprayer or hopper gun. Allow first coat to dry to touch, usually 1-2 hours depending on ambient air temperature. Apply second coat in a criss-cross pattern to first coat. Once second coat has dried, mix and apply (roller, trowel or hopper gun) a coat of SCRATCH KOTE and allow to dry (follow directions on SCRATCH KOTE and MULASTICOAT INSTRUCTION SHEET).

CONCRETE: Apply MULASTICOAT over entire area in two coats with brush, roller, airless sprayer or hopper gun. Allow first coat to dry to touch, usually 1-2 hours depending on ambient air temperature. Apply second coat in a crisscross pattern to first coat. Allow MULASTICOAT to fully dry before proceeding with SCRATCH KOTE. Mix and apply SCRATCH KOTE. (Follow directions on SCRATCH KOTE and MULASTICOAT INSTRUCTION SHEET). Once the SCRATCH KOTE has dried continue with wearing surface installation. Light Weight Concrete, Brick, Stone, Tile can be mortared and set directly onto SCRATCH KOTE. NOTE: Be careful not to puncture deck surface when applying finish material as this will compromise the waterproofing membrane and cause leaks.

LIMITATIONS: Do not apply if substrate temperature is below 40°F or above 100°F, or if ambient temperature is below 40°F or above 100°F. Do not apply if precipitation is expected within a (24) hour period.

Concrete Deck System (Above Grade) Instructions 3 Part Specifications

Advantages

  • Low Cost
  • Superior Waterproofing
  • Hard and Durable
  • Excellent Weather-Salt-Fire Resistance
  • Maintains Surface Integrity over Minor Surface Movements.
  • Water base—Green Friendly
  • High Impact and Abrasion Resistance
  • Chemical Resistant for Pool Decks
  • Superior Bonding to Substrate