RP Gray Hot Applied Sealant

Joint Sealants

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RP GRAY HOT APPLIED SEALANT is composed of selected non-asphaltic resins, synthetic polymeric rubber, plasticizers, stabilizers, and a blend of organic, reinforcing fillers. This material is a hot applied sealant that provides excellent results under varying conditions. RP Gray Sealant is the perfect joint and crack sealant for recessed concrete joint applications.

  • Superior bonding characteristics
  • High resiliency and weather resistance
  • Gray in color
  • Aesthetically pleasing on concrete and bleached out asphalt pavements

RP Gray Sealant meets all requirements of ASTM D 6690 Type I, AASHTO M324 Type I, ASTM D 1190, and AASHTO M173.

Recommended Pour Temperature370 - 390 °F
Maximum Heating Temperature400 °F
Penetration at 25 °C90 max.
Softening Point176 °F min.
Flow at 60 °C5.0 mm max.

Use an agitated, oil-jacketed unit that has separate temperature gauges for both the sealant and the heat transfer fluid.  Take the plastic bag of sealant and load into the kettle one at a time.  Melt only enough material for the day’s activities.  Once melted, additional material can be added as needed.  Material can be safely reheated within the sealants service life. NOTE:  Prolonged heating of the sealant above the maximum safe heating temperature may cause it to gel in the kettle.

To facilitate proper adhesion, the joint or crack should be dry and clear of any dirt, dust, or other contaminates.  Substrate and ambient temperatures must be 40 °F or above.  Proper sizing of the joint will cause the maximum extension/compression to not exceed 50% of the width.  Joints or random cracks of ¼” or less are difficult to properly clean prior to applying the sealant.

The service life when heated to application temperature is approximately 12 hours. Adding fresh material to the melter as sealant is being used will extend the service life. Product shall be agitated during installation.  Any material that has exceeded the service life should be removed from the melter and discarded.

Coverage Width Coverage Depth Coverage Pounds/100 Lineal Feet
3/8"3/8"6.9
3/8"1/2"9.3
1/2"1/2"12.3
1/2"1"24.7
3/4"1/2"18.6
3/4"3/4"27.8

Packaging

35 lbs. per unit - 60 Units per Pallet - 2100 lbs. per Pallet