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Tough-Cast 65D

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$25.99 - $605.99

Tough-Cast 65D is a two part casting resin that is virtually indestructible. It's designed to make durable prototypes, and reproductions.

Maximum Purchase: 4 units

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Tough-Cast 65D is a two component polyurethane casting resin that is virtually indestructible. It exhibits excellent impact resistance, abrasion resistance, strength and chemical resistance. Tough-Cast 65D has the look and feel of thermoplastics such as abs while maintaining a high heat deflection. It is designed for making durable prototypes, reproductions, end use production parts, rollers, etc.. It contains zero solvents and can be hand mixed or used with automated dispensing equipment. Tough-Cast 65D works excellent in rtv silicone molds.


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Mix Ratio 1:1 by weight / volume
Working Time 2.0 minutes
Demold Time 30 minutes
Heat Deflection 200°F
Shrinkage .001
Color Amber
Hardness 65-D
Viscosity 800 cps
  • 5 Rodrigo Montoya on Feb 8th 2022
    The best.

    Tough-Cast 65D is my go-to for action figure parts that need to be stiff but still have a LITTLE flex to them. It pretty closely mimics the injection molded plastic used in action figure arms and legs. It's great for anything that needs to be tough, strong and have some impact resistance. Love it!

  • 3 MATTHEW R KAPCIA on Feb 4th 2022
    Tough Cast 65D

    This resin is not as rigid as I thought it would be. It flexes more than i need it to. I'm looking for a resin that duplicates PVC strength and hardness.

  • 1 Terry Ferguson on Jan 19th 2022
    Not acceptable for my projects

    I don't think product is accurately represented in your description material. It might be great for someone wanting a less rigid casting material. Would have never purchased if it had not been listed in the rigid section.

  • 5 THOMAS BARNARD on Jul 6th 2021
    TOUGH_CAST 65D Polyurethane Casting Resin

    My lawn mower deck corroded between the 2 blade leaving a big hole. Grass would come up through this hole in the deck and plug the belts making my riding mower worhless. So I bolted sheet metal to the top side of the deck to plug the hole, turned the deck upside down, and then cast a large plug of this urethane about 3/4 inch thick to protect the sheet metal and absorb energy when the blades pick up small gravel. It was so easy to cast because one just uses equal volumes for the 2 parts to form the urethane. Once formed and set, the urethane has no problem with oil. grease, or gasoline. It also protects the sheet metal from corrosion as I later also painted a thin coat on the top side. Problem solved! I ordered online and they shipped the same day. I got it 2 days later which was outstanding. I expect that my riding mower will now last for many more years thanks to Specialty Resin and Chemical!!! A+ to you people!!