Cast Epoxy, Silicone & Urethane Tooling
Cast Epoxy, Silicone
& Urethane Tooling
Attributes
Creative Strategy
Size & Complexity
- Maximum Epoxy, Silicone and Urethane molds are 18” x 18” x 12”. Molds can be constructed as single or multiple cavity
- Considerations: charge port location, hardware, parting lines and substrates
Molded Materials
- Composites, Concrete, Epoxy, Foams, Plaster, Polyester, Silicone, Urethanes, Vinyl Ester
Draft
Amount of taper for molded or cast parts perpendicular to the parting line. An angle is incorporated into a wall of a mold so that the opening of the cavity is wider than its base. Draft angles allow for easier ejection of the part from the mold.- Epoxy: 1° draft required minimum
- Silicone: 0° draft acceptable in some cases, 1° draft preferred minimum
- Urethane: 1° draft preferred minimum
Surface Finish
Dents or markings distort the plane of a surface, causing light to reflect in a way that our eyes instantly identify as an inconsistency. Added texture aids in concealing blemishes and creates a friction factor on the surface of finished parts providing anti-slip qualities.Tolerances
Allowable variation for any given size in order to achieve proper function when considering the design intent. As with all molded products, part material’s shrink value should be considered when building your pattern and mold.- Epoxy: ±.030”
- Silicone: ±.010”
- Urethane: ±.010”