RP Type 4 Elt

Hot Applied Sealants

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RP TYPE 4 ELT HOT APPLIED SEALANT is formulated with selected asphaltic resins, synthetic polymeric rubber, plasticizers, stabilizers, and a blend of organic, reinforcing fillers. This flexible material is a hot applied, one-part sealant that provides excellent results under extremely varying conditions. RP TYPE 4 ELT is the perfect joint and crack sealant for large scale projects experiencing maximum joint movement in the coldest of temperatures.


  • Superior bonding characteristics
  • High resiliency and weather resistance
  • Excellent results throughout freeze and thaw cycles

RP TYPE 4 ELT meets all requirements of: ASTM D6690 Type IV, AASHTO M324 Type IV, and ASTM D3405 Modified.

Recommended Pour Temperature370 - 390 °F
Maximum Safe Heating Temperature410 °F
Penetration at 25 °C110 – 150
Penetration at -18 °C40 min.
Resilience60 % min.
Bond, -29 °C/200% Ext.Passes 3 cycles
Flow at 140 °F3.0 mm max.
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