• Long-term solution for roof repairs. Ideal for quick repairs and general maintenance.
  • Stops leaks instantly and permanently, even in ponding weather.
  • Extremely tough Kevlar® reinforced all weather repair coating for all types of roofs, gutters and gullies.
  • The integral fiber reinforcement bridges gaps and cracks forming a continuous membrane which is strong and flexible.





Categories: , , Tags: , , Product ID: 978






RUBBERKOTE 1047 is an extremely tough and durable waterproofing repair coating uniquely designed to be applied on roofs of all types in even the most difficult conditions. Rubberkote 1047 will cure below water and in freezing conditions. It is the ideal solution for either instant roof repairs or as a permanent roof coating. The all purpose coating may be used as a one step flashing repair solution for every type of roof situation. Primers or top coats are not necessary. Color finishes may be applied over Rubberkote 1047.


Outstanding Features

  • Will cure underwater regardless of applied coating thickness. Withstands ponding water.
  • Will not chalk, crack, or peel and is UV stable.
  • Produces a fully adhered, seamless, high density, waterproofing membrane.
  • Remains flexible, tough, and weatherproof at low temperatures and will not flow at high temperatures.
  • Apply straight out of the container by brush or roller.
  • Uses DuPont Kevlar® technology to achieve super strength and durability.
  • Will not re-emulsify or wash away with water.
  • May be used on vertical, pitched and horizontal surfaces.
  • Will not stain coatings applied over it.
  • Five year material warranty.

May be used over

BUR, capsheet, modified bitumen, steel, aluminum, tin, concrete, fiberglass and other surfaces.

For use of repair of

Surface splits and cracks, coping joints, control joints, membrane pinholes, gutter seams, rain collars, fish mouths, junctions between dissimilar materials and all pipe penetrations.


Approximate 30 to 40 sq ft/gal, depending upon substrate

Container sizes

1 gallon, 3.5 gallon


Light Gray


Preparation and Application

Surface Preparation
Although only minimal preparation is required, all loose material, stones and grease should be removed, together with as much dust, rust and standing water as is reasonably possible. Bird excrement, algae and slime mold should be scrubbed off of the surface for best adhesion results. All holes, gaps and joints should be bridged with ROOFAB sandwiched between sufficient RUBBERKOTE 1047 to provide thorough wetting of the roof surface and thorough saturation of the ROOFAB. This is best accomplished by “stippling in” with a brush. RUBBERKOTE 1047 may be applied in 2 coats of 20 wet mils thickness each over capsheet, modified, metal, transite or concrete after the above preparation is complete.

The 1st coat may be applied directly over any fresh, wet repairs as curing will proceed regardless of thickness although slower. The 2nd coat may be applied as soon as the 1st coat is sufficiently dry to walk on (normally 2-3 days at 65°F). Care should be taken not to disturb any patches or pre-treatments as they may still be wet. RUBBERKOTE 1047 may be applied over asphalt or coal tar B.U.R. after the preparation described above has been completed. The 1st coat should be applied at 66 square feet per gallon; ROOFAB laid into it and thoroughly “stippled in” by brush with a 2nd coat at 66 square feet per gallon to remove all tents and voids. The Roofab should be overlapped by at least 2 inches and thoroughly saturated with RUBBERKOTE 1047 so that no dry spots remain.

Dry time to walk on
Approximately 60 hours at 80°F (27°C) and 70% RH.

Total Curing Time
Approximately 7 days (to 36 deg. Shore ‘A”‘) 80°F (27°C) and 70% RH.

Clean up
Clean tools and equipment with Mineral Spirits.

Read the container label warning and Safety Data Sheet (SDS) for important health and safety information prior to the use of this product.


For additional information, contact the Andek Technical Department


Technical Data
VOC 400 gms/liter
Moisture Vapor Transmission  0.32 perms ASTM E-96
Tensile Strength  250 psi ASTM D-412
Elongation 65% ASTM D-412
Flexibility at Low Temperature 180 deg. bend @ -20°C ASTM C-711
Shore ‘A’ Hardness 36 degrees ASTM D-2240
Puncture Resistance
50 psi ASTM  D-154-79
Viscosity at 70°F
10,000 cps ASTM D-446
Solids Content
60% (B.W.); 58% (B.V.) ASTM D-1044