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88 Rubberized Waterproofing (Spray grade)

88 Rubberized Waterproofing (Spray grade)

Available in: 5 gallon pail & 55 gallon drums

KARNAK #88R Rubberized Waterproofing is a solvent based elastomeric asphalt compound, manufactured with selected asphalts, stabilizers and mineral  spirits. KARNAK #88R Rubberized Waterproofing is prepared to semi-mastic consistency for easy spray application. Karnak #88R is a multi purpose, cold  applied protective waterproofing that dries to a tough 33-mil durable and flexible coating that gives excellent performance over a wide range of  temperature and weather conditions. This protective coating also functions as an air barrier as specified in a number of building codes. KARNAK #88R  Waterproofing exhibits excellent resistance to acids and alkalis in soil and in the environment.

 

Category:

Advantages

  • CHEMICAL RESISTANCE:
    Acids: Excellent
    Alkaline: Excellent
    Salts: Excellent
  • VOC: 316 g/L

Specifications

ASTM D-4479 Type I
• Fed. Spec. SS-A-694d ()
• Complies with Chapter 13 of Massachusetts Energy Code

Coverage Calculator

  • 4-4 Gallons per 100sf**

 

This is intended as a general guideline only, coverage can vary based on many factors.

Uses

KARNAK #88R Rubberized Waterproofing is designed to waterproof masonry and concrete exterior surfaces below grade and interior cavity wall surfaces above grade. KARNAK #88R also functions as a vapor barrier and air barrier. This product is also suitable as a general protective coating for wood, spray polyurethane foam, steel and for all backup materials for masonry such as stone, brick and concrete.

Physical Properties

Weight Per Gallon: 7.8 lbs.
Solids by Weight: 57.3%
Solids by Volume: 51.3%
Color: Black
Water Vapor Permeance: 0.026 perm ASTM E-96
Air Permeability (Leakage): 0.001 L/(s.m2) @ pressure difference of 75 Pa ASTM E-293
Cure Time: 24 to 48 hours @77ºF and 50% Relative Humidity
Application: Spray or Brush
Service Temp. Range: -40ºF to 160ºF
Elongation: 550-600% ASTM D-412
Tensile Strength: 150 PSI ASTM D-412
Coverage: 4 gallon per 100 sq. ft.

Preparation & Application

SURFACE PREPARATION:
Surfaces must be clean, dry and free from oil, grease, release agents, laitance, dirt, dust and debris. All cracks and imperfections should be repaired and filled with KARNAK #229AR-Elastomeric Trowel Grade prior to coating. If a primer is necessary, KARNAK recommends that KARNAK #108 Asphalt Primer be utilized to provide a firm film base prior to coating with KARNAK #88R Rubberized Waterproofing.

APPLICATION:
Apply by standard heavy-duty airless spray equipment. Equipment manufacturers should be consulted for more complete information. Spray tip should be 0.035 to 0.041 mm. Apply at the rate of 4 gallons per 100 sq. ft. Material may also be applied by masonry brush. NOTE: Allow the film to cure for at least 24 to 48 hours prior to backfilling. Care should be taken during filling not to puncture or damage the coating. A protection board is highly recommended to  protect the film prior to backfilling. Contact KARNAK Corporation for alternate product suggestions.

NOTE: Allow the film to cure for at least 24 to 48 hours prior to backfilling. Care should be taken during filling not to puncture or damage the coating. A protection board is highly recommended to protect the film prior to backfilling. Contact KARNAK Corporation for alternate product suggestions.

COVERAGE:
Apply at the rate of 4 gallons per 100 sq. ft. (64 wet mils.)

Caution/Care of Tools

CAUTION:
Do not use near open flame. Avoid breathing solvent fumes and prolonged contact with skin. Do not take internally. If swallowed, do not induce vomiting. Call a physician immediately. Keep out of reach of children. Keep container covered when not in use. Do not thin. Dispose of in an environmentally safe manner.  Cover air intakes during application and while drying.

CARE OF TOOLS:
Tools and other equipment should be thoroughly cleaned with Karna-Klean or mineral spirits, taking necessary precautions when handling combustible materials.

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