Custom Silicone Resin Molds

RUUIPON develops custom silicone molds for resin casting from CAD, samples and dimensioned references. The project starts with the part you want to cast and the resin you intend to use. We review release geometry, surface requirements and support before confirming the mold structure and quotation.

This service supplies the mold into which you cast resin. If you need finished resin parts, state that separately so the requested deliverable can be clarified.

Request a resin mold quote: Send your CAD or reference images, finished dimensions, resin type, required surface finish and number of molds through contact.

Define the casting and its release path

A shallow coaster and a full-3D figurine need different mold structures. Show all sides of the part, especially holes, overhangs and fragile details. Mark the cosmetic face and where a seam would be acceptable.

The structure should let the casting release without relying on excessive stretching. Hardness follows the geometry and process; there is no single Shore A value that suits every resin mold.

Surface finish starts with the master

Show the surface you want to reproduce and identify the features that must remain unchanged. Printed layers, damage or texture on a master may affect the reproduced surface. Agree whether master preparation, finishing or additional modeling is included before work starts.

Photos need a reliable size reference. For fit-sensitive geometry, a physical sample or additional measurements may be needed. A photograph alone does not establish exact dimensions.

Specify the resin and processing conditions

Share the resin product information available, intended casting thickness, cure conditions and any release agent. Epoxy and polyurethane systems should not be treated as interchangeable. Assess compatibility for the selected silicone and process, including heat generated during curing where relevant.

No fixed mold-life claim is made without a defined resin, geometry and evaluation method. If repeatability or a surface standard matters, include it in the prototype acceptance criteria.

Agree the prototype and test-casting scope

Specify whether the quotation includes a test casting, who provides the resin, and what will be inspected. Useful checks include complete fill, seam visibility, reproduced detail, release of fragile features and support of the filled mold.

A test on a different resin or casting thickness may not represent your production conditions. Record the approved material, setup and acceptance points so later orders have a clear reference.

Quote and order requirements

Applicable custom RTV production has a standard MOQ of 20 molds per design. Confirm prototype quantity and arrangements separately. Modeling, master preparation, mold structure, support, test casting, unit price, lead time and shipping are confirmed for the actual project.

Include:

• CAD/STL, drawings, sample details or dimensioned images;
• finished casting size and any critical dimensions;
• resin type and processing information;
• required finish and acceptable seam locations;
• mold quantity and any support requirement;
• test-casting request, delivery country and target date.

Resin mold questions

Can you make a mold from a sculpture?

A physical sculpture can be reviewed as a starting point. Its condition, dimensions and suitability for molding need checking before the master and mold-making scope are confirmed.

Is a softer mold always easier to use?

A softer mold may peel around some details but can need support while filled. Review release strain and dimensional support together.

How many castings will the mold produce?

Service life varies with resin chemistry, geometry, heat, handling and cleaning. Agree any durability evaluation for the intended application rather than relying on a universal cycle count.

Can you test with my resin?

Request this in the brief. Resin supply, handling and acceptance criteria must be agreed in the quotation before a test casting is included.

Send your resin mold project.