Sponge Rubber Expansion Joint

Expansion Joints & Plastics

SPONGE RUBBER EXPANSION JOINT is composed of economical re-bonded sponge rubber particles manufactured to a consistent density and size. This very workable material has a recovery rate exceeding 90% and a minimum density of 30 lbs./ft³.

  • Resilient – recovers 90% of original thickness after compression
  • Easy to handle and install
  • Resists water infiltration
  • Petroleum resistant

Sponge Rubber Expansion Joint meets all requirements of: ASTM D1752, Type I; AASHTO M153, Type I; FAA P-610-2.7; Corps of Engineers CRD-C 509, Type I; and Federal Specification HH-F-341 F, Type II, Class A.

  • Designed for high performance, low tolerance projects
  • Excellent recovery properties for installations with wide temperature variations
  • For isolation applications or between materials with dissimilar coefficients of expansion.

Sponge Rubber Expansion Joint is available at thicknesses from 1/4″ up to 6” in 1/4″ intervals and at a standard length of 120”. Slabs are manufactured at a maximum width of 36” and can be cut to size from 2” to 36” in 1/2″ increments

Compression, 50% deflection50 – 500 PSI
Recovery90% minimum
Density30 lbs./ft³ minimum
Extrusion0.25 in. maximum


10 Feet, 5 feet


1-1/2", 1", 1/2", 3/4", 3/8"