Order before 12PM for Next Business Day Delivery  Call us:  +44 (0) 1638 750679

Polyurethane Casting Resin




Poly Plasti-Flex is a flexible polyurethane casting plastic that is most often used for making slightly flexible and impact-resistant parts such as decorative trim, flex molding and millwork. Poly Plasti-Flex also works well for casting props and display items requiring high impact resistance. This product can be machined, drilled, and sanded (contains no silica).

Mix Ratio

Shore Hardness

Pot Life

Demold Time

Cured Color

Mixed Viscosity

Specific Gravity

Specific Volume

Maximum Exotherm

35A:100B by weight


3 min. (1-lb mix)

~15 min.


3,000 cP


34 in³/lb

190°F (2-lb mass)

This is a 35A:100B mix ratio product that must be measured by weight. Shake or stir Part A & Part B before use. The color of polyurethane Part Bs may change in color from batch to batch or may darken with age, but product performance is not affected. For additional physical property specifications, refer to the Physical Properties Bulletin.

  • Weight:
Not yet reviewed
Write an online review and share your thoughts with other shoppers!
Be the first to review this product