Tough-Cast 75D

Made in the USA

When you buy from SRC, you'll receive fresh American-made materials every time, direct from the source.

Tough-Cast 75D polyurethane casting resin features high impact resistance, abrasion resistance, strength, and chemical resistance. Perfect for prototyping and precision casting.

$22.99
$22.99
Shipping calculated at checkout.
Size: 2 Pint 32 oz
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$22.99

Tough-Cast 75Dis an incredibly strong and durable 1:1 ratio two-component polyurethane casting resin. It features high impact resistance, strength, and chemical resistance.

Tough-Cast 75D is the best casting resin for durable prototyping and precision casting. It contains zero solvents, and the clear amber color makes for easy coloring.

With a 6 to 7-minute work and 60-minute cure time, Tough-Cast 75D can be hand-mixed or used with automated dispensing equipment and works with resin casting molds created with RTV silicone.

Tough-Cast 75D has a low, easy-to-mix viscocity, which ensures minimal bubble entrapment when casting. Cast with confidence with this high-performance urethane casting resin.

The Toughest Resin for the Job:

  • Virtually Indestructible (Will NOT Shatter or Deform)
  • High Impact Resistance & Strength
  • Low Viscosity for Easy Pouring and Mixing
  • Low Odor & Great Chemical Resistance
  • High Detail for Fine & Complex Molds
  • Easy to Color, Easily Pigmented
  • Cost Effective
  • Long Work Time (6-7 minutes)

Tough-Cast 75D Common Uses:

  • Prototype Parts
  • Taxidermy Replicas
  • Models & Figurines
  • Sculptures
  • Reproductions
  • Industrial Parts
  • Automotive Parts

Tough-Cast 75D vs Tough-Cast 65D :

Both Tough-Cast 75D and Tough-Cast 65D have excellent strength, durability, and impact resistance. Choosing the right one for the job depends on the application and properties you are looking for in your finished part.

Tough-Cast 75D is ideal for applications where you need both toughness and stiffness. It has a lower viscosity than 65D, making it the ideal choice for finer more detailed molds. 75D has a longer working time than 65D and is also virtually odorless. For example, Tough-Cast 75D is a smart choice for a highly detailed, impact resistant prototype. Tough-Cast 75D is comparable to Smooth-on TASK™ 9 high performance casting resin.

Tough-Cast 65D is ideal for applications where you need a small amount of flexibility as well as more abrasion resistance. It also has a higher heat deflection than 75D. For example, Tough-Cast 65D is a smart choice for knuckle guards on a dirt bike. Tough-Cast 65D is comparable to Smooth-on Smooth-Cast™ 65D semi-rigid urethane casting resin

Mix Ratio 1:1 by weight / volume
Working Time 6.0 minutes
Demold Time 60 minutes
Heat Deflection °F
Shrinkage Low
Color Clear Amber
Hardness 75-D
Viscosity Low
Safety Data Sheet - Tough-Cast 75D

Customer Reviews

Based on 10 reviews
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100.0
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P
Paul Arlton
Great stuff!

I had many problems casing a small part (about 15 grams) from Alumilite 65D and 80D. 65D was too soft and 80D was terribly sensitive to moisture (many small bubbles) and became brittle like glass. Tough-cast 75D was easy to use, stiff and durable (4mm test medallions flex 10 to 20 times before breaking). I post-cured the material in-mold the next day (don't remove from mold!) for 2 hr at 120F, 2 hr at 150F and 2 hr at 190 F. Parts look and feel great.

T
Toxic water
It's tough!

It's hard, it's tough and machines well.
Worked good for making replacement gears for my Chinese milling machine. At a fraction of the cost and time. Still doesn't hold up quite as well as the factory parts. But it does get my machine back up and running. Maby they could point me in the right direction for a more suitable resin for making gears that can absorbed heat/ friction. Still a good product.

V
Vicki Brunetti

Worked very good the 6 to 9 minutes Work time is what I needed. Very good rigidity. And super tough. Thanks, guys.

J
James Stahl
Tough-Cast 75D

Awesome product. Super fast shipping. I have purchased from you for over 15 years and don't plan on going anywhere else. 👍💪 Jim

D
D.B.
used for casting miniatures in 2 part molds

Super tough stuff. Although it says it cures in an hour, it's still very soft. I leave this resin in the mold for 4 hours and it's fully hardened.

Small pieces on the miniatures like, horns, swords or spikes are very tough and do not snap easily. Perfect for handling small detailed pieces.

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