RP 3725

Joint Sealants

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RP 3725 HOT APPLIED SEALANT is formulated with selected asphaltic resins, synthetic polymeric rubber, plasticizers, stabilizers, and a blend of organic, reinforcing fillers. This economical material is a hot applied, single component sealant that provides excellent results under extremely varying conditions.  RP 3725 is the perfect joint and crack sealant for many applications.


  • Superior bonding characteristics
  • Excellent cold weather properties
  • Excellent results throughout freeze and thaw cycles

RP 3725 meets all requirements of Minnesota DOT Specification 3725.

Recommended Pour Temperature370 - 390 °F
Maximum Safe Heating Temperature400 °F
Recommended Extended Heating6 Hours
Penetration at 25 °C110 - 150
Penetration at -18 °C25 min.
Bond, - 29 °C/200% ExtPasses 3 cycles
Flow at 60 °C10.0 mm max.
Resilience30 - 60 %.
Asphalt CompatibilityCompatible

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


30 lbs. per unit - 65 Units per Pallet - 1,950 lbs. per Pallet

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