Opaque Elastomer

At a Glance


Lead Time





10 days
All colors; precise pantone color matching available
Shore A 20, 30, 40, 50, 60, 70, 80, 90
Wearables, gaskets, overmolds

About the Material

Opaque Elastomer is a polyurethane plastic that simulates all kinds of rubber-like materials such as TPE, TPU, and silicone rubber. This material is great for wearables, gaskets, and overmolds and is available from Shore 20A to Shore 90A in 10A increments.

Material Properties


Elongation at Break

Shore A 20, 30, 40, 50, 60, 70, 80, 90

Design Recommendations

Min Wall Thickness

Rib Dimensions

Min Boss Dimensions (height, diameter)

1.5 mm for guaranteed parts
1.0 mm minimum
Thickness: < 60% nominal wall thickness.
Height: < 3x thickness
1 x 1 mm
0.039 x 0.039 in

For a complete list of design recommendations for urethane casting, download our free Urethane Casting Design Guide.

Related Resources

Urethane Casting Material Datasheet
Urethane Casting Design Guide