Clean the area of debris and contaminants that would act to de-bond HT-CRR; oils, loose materials, dirt, rubber etc. Expose clean rough asphalt for best results. A vertical edge is helpful of approximately ½" deep, around perimeter of area to be repaired but is not absolutely necessary. Make sure the area is dry.
Mix "B" Side First: Use a Jiffy Mixer for 1 - 2 minutes in bulk containers, or vigorously shake the gallon container 30 - 40 seconds. Then, mix equal amounts of part A and part B in a 5 gallon bucket for 30 seconds. Add dry silica sand to thicken the product, (pea gravel is acceptable for deep repairs). Pour mixture into the area to be repaired and use a squeegee to trowel smooth. While curing, broadcast sand over the top for a non-skid surface. Sweep up any excess sand.
HT-CRR is slightly moisture sensitive and should not be applied to very wet surfaces while curing.
Viscosity (Mixed) 300 cps
Hardness, durometer (ASTM D2240) 70 to 73D
Tensile Strength, PSI (ASTM D412) 4600
Tear Strength (ASTM D624) -lb/mil 489
Elongation % (ASTM D412) 7% to 9%
Compressive Strength (neat) 3800 psi
(ASTM C109) (with sand) 4900 psi
Bond Strength (ASTM 882-99) 3600
Test Procedure; ASTM D-1308 @72°F
R=Recommend
RC=Recommend Conditional =some swelling or discoloration
N=Not Recommend
1=Some discoloration only
Chemical Result
Acetic Acid 10 % R
Acetone RC
Battery Acid (Sulfuric Acid) RC
Brake fluid R
Chlorine (2,000 ppm in water) R
Citric Acid R
Gasoline R
Hydraulic Oil R-1
Methanol (5%) Gasoline RC
Motor Oil R-1
Toluene RC
Vinegar R
Water R
Xylene R
