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WhiteLight Design

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Rapid Molding or RTV Prototype

Rapid Molding or the RTV (Rapid Thermal Vulcanizing) –  Cast Urethanes Prototype
RTV or rubber urethane soft tooling molding process uses our CAD program’s export files to move directly to prototype tooling or soft tooling.  WhiteLight Design also delivers direct access to rapid injection molding services.  We have access to molder referrals of local Georgia and U.S.A. based  injection molding companies including presses ranging in size from 40 tons to 1500 tons with all the necessary auxiliary equipment to process the full range of engineering resins.   The current molding facilities are within 10 miles of our main office location in the Lawrenceville, Atlanta, GA area.

RTV Cast Urethane Molding
RTV or Rubber Cast Modeling is a low volume prototyping technique that can produce parts from soft to hard using Polyurethane rubber polymer mold materials to cast Polyurethane and Silicone custom color plastics. These parts can appear just like injection molded plastic parts with similar surface finish, color, properties.  RTV models are recommended when a Client needs more than between 10-20 or up to hundred units.   The process consists of creating a “master” model from which a two piece clam-shell mold is created with a rubber like material.  The molds are then used to gravity or vacuum feed to cast multiple parts of a desired product component. After molding, final clean-up and finishing is necessary. WhiteLight Design’s model-makers have been using Rapid Molding and RTV Molding for years and we are happy to lend our experience to your project. Please contact our team with any questions or inquiries.

For questions or to schedule an initial consultation or request a Model Making or Prototype quotation please call us at (770) 277-7097.

We typically create design 3D CAD files or drawings before we can go to the shop  For questions or to schedule an initial consultation or request a Model Making or Prototype quotation please call us. We will need to review your design – drawings, prototype or CAD information to provide a quotation. Remember—for product development prototyping services that won’t let you down, choose WhiteLight Design. We’re looking forward to working with you!

Prototype Development Confidence
Prototype or prototyping development – new product development is about building confidence.  Prototyping is about proving out the design leading to confidence of proceeding to mass production.  Prototyping is also limited to the additive or block materials available not always able to simulate the actual materials or mechanical performance of the injection molded or diecast part.  The RTV or BETA prototypes are getting close to simulated injection mold plastic production materials performance, used to prelaunch or test market before mass production and tooling investment.

Prototypes Developed in Stages.
RTV Prototypes are developed in stages with different levels of complexity.  Mechanical or electrical powered prototypes are used when integrated with  Electronics – AC 100V or battery powered Hardware and Software – Graphic User Interface program development   Mechanical Prototype development stages:

  1. Working – full ID appearance – PCB (Printed Circuit Board) display – 1 unit plastic printed prototype enclosure
  2. Working – BETA full ID appearance quality  1 – 20 units PCB (Printed Circuit Board) display –  RTV Cast Urethane (rubber tools), urethane prototypes.  Simulate injection molded part with color and graphics.


New RTV cast materials and production technologies are used to meet the simulated production materials and mechanical performance.  Our Designers look for the highest quality prototype process possible with sincere commitment to solutions that exceed expectations.  WhiteLight Design always aims to  create efficient and elegant prototype solutions. From SLA to FDM to plastic to metal to aluminum to titanium, metal to plastic conversion our engineers work to model up the invention from the patent.  If you and company are looking for prototype design shop give the shop a ring.   

ASK WhiteLight Prototype Shop – General Questions:  Willis Whiteside willis@whitelightdesign.com