Product Description

AASHTO Unsupported Calendered Neoprene Bearing Pads

AASHTO Unsupported Calendered Neoprene Bearing Pads are also available in 36″ x 36″ and 48″ x 48″ molded slabs.

– Thickness Tolerance: 1.25″ thick or less = +0.125/-0

– Width Tolerance: 36″ width = +0.25″/-0 , 48″ width = +0.5″/-0

Made in the USA.

Samples available upon request.

Key Aspects

Temperature Range:  -40°F to +220°F
Durometer (Shore A ± 5): 50 to 70
Tensile Range (psi.): 2550 to 2650
Elongation Range (%): 320 to 440
Finishes Available: Smooth
Talc: Talc Present
Specification: AASHTO Grade 3

We comply with the Buy American Act requirements.

Advanced Technical Details

(Shore A ± 5)
Estimated Weight
Per Linear Foot
(1/8" x 36")
1/8 - 1/2 36, 48 2550 440 -40°F to +220°F 2.54 lb AASHTO Grade 3 Neoprene
1/8 - 1/2 36, 48 2600 380 -40°F to +220°F 2.56 lb AASHTO Grade 3 Neoprene
1/8 - 1/2 36, 48 2650 320 -40°F to +220°F 2.60 lb AASHTO Grade 2 Neoprene

Certain states specify requirements other than standard AASHTO specifications. When ordering, identify all requirements or submit individual state specifications. Above meets the Standard Specifications for Highway Bridges, adopted by the American Association of State Highway and Transportation Officials. AASHTO M251 Unsupported Neoprene Bearing Pads are also available.

Property Durometer Hardness
50 (Shore A ± 5)
Durometer Hardness
60 (Shore A ± 5)
Durometer Hardness
70 (Shore A ± 5)
ASTM D 573
Heat Resistance
Change in durometer hardness,
max. points
15 15 15
Change in tensile,
max. %
-15 -15 -15
Change in ultimate elongation,
max. %
-40 -40 -40
ASTM D 395
Compression Set
22 hours at 212°F, max. % 35 35 35
ASTM D 1149
100 pphm ozone in air by volume,
20% strain, 100°F ± 2°F 100 hours
mounting procedure D518,
Procedure A
no cracks no cracks no cracks
ASTM D 746
Low Temperature
Grade 3
at -40°F
no failure no failure no failure
ASTM D 1043
Thermal Stiffening
Grade 3
at -40°F
Stiffness at test time shall not exceed 4 times
the stiffness measured at 73°F
Low Temperature
Quad Shear Test
Grade 3
14 days at -15°F
Stiffness at test time and temperature shall not exceed
4 times the stiffness measured at 73°F with no time delay

Compound Numbers: 050E0052, 060E0054, 070E0056

Our rubber products are a proprietary blend of various polymers formulated to meet stated physicals and specifications. The named product polymer is not necessarily the primary polymer representing the highest percentage of the polymer blend. Determination of the suitability of the goods for the uses and applications contemplated by Buyer and others shall be the sole responsibility of the Buyer or user. No guaranty is given with respect to length of service on any particular application. Suggestions or recommendations made by Seller in its product literature concerning uses or applications of the goods are believed to be reliable, but Seller makes no warranty or guaranty of results to be obtained since the conditions of the use and application by Buyer and others are beyond Seller’s control. The specification listed here, AASHTO, stands for the American Association of State Highway and Transportation Officials which represents highway and transportation departments in the 50 states, the District of Columbia, and Puerto Rico through all five transportation modes: air, highways, public transportation, rail, and water. Their website can be found here: The specification listed here, ASTM, stands for the American Society for Testing and Materials which is the developer and provider of voluntary consensus standards, related technical information, and services. Their website can be found here:

View complete Terms & Conditions of Sale for suitability of use and formulations

Other AASHTO Bearing Pads Rubber Products

AASHTO Unsupported Molded Neoprene Bearing Pads

  • Polymer: Neoprene
  • Durometer: 50 to 70
  • Temperature Range: -40°F to +220°F
  • Specs: AASHTO Grade 3 & Grade 2