RTV Molding

3D Printing for Silicone Molds

3D printing makes it possible to produce a prototype pattern in less than 24 hours. Plus, without the traditional constraints of machining, your designs can be more complex without driving up cost.

Overview of the application

RTV Molding Pattern

Silicone molding — also known as room temperature vulcanizing (RTV) molding — creates finished products for prototyping, functional testing and short-run production. Considering tool life and cycle times, it is ideal for small quantities (25 - 100 castings) because it offers lead times and costs that are well below that of machining or injection molding.

Silicone molds are made by pouring silicone rubber over a pattern. After curing, the resulting firm but flexible mold can produce parts with extremely complex geometry, intricate detail and tight tolerances. The parts are cast from a silicone mold made with thermoset materials (commonly urethanes) that are available with a vast array of mechanical, thermal and electrical properties.

Value of using FDM or PolyJet

Traditionally, patterns are fabricated from wood, plastic or metal, which can be expensive, have long lead times and require skilled labor to oversee the pattern-making process. As a result, designers may have to limit or simplify the geometry of the pattern to accommodate these factors.

Benefits & Best Fit for PolyJet+
Benefits & Best Fit for FDM+
Our Technologies+

Stratasys Ltd. © 2015. All rights reserved. See stratasys.com/legal for trademark information.