Smooth-Cast™ 57D
Semi-Rigid Urethane Casting Resin
The Smooth-Cast™ Semi-Rigid line of low-cost semi-rigid urethane casting resins cure quickly to semi-rigid plastics that offer exceptional strength and impact resistance.
Smooth-Cast 45D, 60D and 61D are newly reformulated with a translucent white appearance and improved physical properties. All Smooth-Cast semi rigids are now mercury free and phthalate free.
![Smooth-Cast™ 57D - Semi-Rigid Urethane Casting Resin](https://www.benam.co.uk/pub/media/catalog/product/s/m/smooth-cast-57d-combo-533x400.jpg?width=533&height=400&store=bam_view&image-type=image)
Quick Tech Data
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1A:1B
Mix Ratio By Volume
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3 minutes
Pot Life
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30 minutes
Cure Time
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57 D
Shore Hardness
-
Translucent White
Colour
These plastics are easy-to-use (mix ratio is 1A:1B by volume) and have low viscosities for minimal bubble entrapment. Vibrant colors are possible by adding SO-Strong™, UVO™ or Ignite™ colorants.
These semi-rigid plastics are good for making impact resistant prototypes, models, toys, props, climbing holds, etc.
NOTE: Smooth-Cast™ 57D and Smooth-Cast™ 65D are also suitable for rotational casting applications. Do not use other Smooth-Cast™ semi-rigid plastics for roto casting.
![Smooth-Cast™ 57D - Semi-Rigid Urethane Casting Resin](/pub/media/catalog/product//s/m/sm-65-57d-hero_1.png)
Videos
![](https://i.ytimg.com/vi/MBWFzTfbzX8/maxresdefault.jpg)
Cold Casting a Bear Skull using Urethane Resin and Nickel Silver Powder (Making Things with Milo)
![](https://i.ytimg.com/vi/Fh1hXERB9f4/mqdefault.jpg)
Resin Casting Tutorial - Hollow Impact Resistant Casting Using Smooth-Cast® 57D
![](https://i.ytimg.com/vi/cmNTF4JkzBA/mqdefault.jpg)