CUSTOM MANUFACTURING · PROJECT REVIEW

Rubber-Like Functional Prototypes by Vacuum Casting

A rubber-like prototype needs the right deformation and fit for its intended trial. Relia reviews silicone-mould vacuum casting around the selected material, contact features and test conditions, keeping prototype results tied to that actual configuration.

Two blue polymer prototype forms with fine protrusions and round bodies
Prototype geometry and required material behaviour need separate definitions.

RELIA · PRODUCT AND MANUFACTURING SUPPORT

Describe the flexible function

Relia's flexible-prototype references include silicone-mould vacuum casting, one-piece enquiries and drawing-based geometry. Relia connects the material choice to compression, bending, grip or handling requirements. That lets your team test a defined flexible behaviour while keeping the prototype resin's identity and limits separate from the final production elastomer.

Requirements at a glance
Your requirementRelia product and service scope
ProcessSilicone moulding and vacuum casting
Material basisSelected PU/rubber-like grade and hardness
FilesIGES/STEP with critical interfaces identified
Trial focusDeflection, fit, demoulding-sensitive details and intended handling

02 · RESIN

Set material targets with their test conditions

Material target
Define hardness or other properties with assessment conditions.
Selected grade
Review the resin data against the intended behaviour.

Share the properties your design needs and the method used to assess them. We review the selected resin data against those targets rather than treating every rubber-like option as equivalent.

Technical notes

Specify the required hardness and a representative trial feature. Review thin sections, undercuts and demoulding with the geometry. Rubber-like or silicone-mould wording describes the prototype route; it does not establish the final elastomer chemistry, fluid resistance or compression-set performance.

Close detail of fine protrusions and their roots on a blue prototype
Material targets need an applicable method and condition.

MANUFACTURING ROUTE · FEATURES AND CONTROL

Cast Flexible Detail Without Damaging It at Removal

The master and silicone mould need a parting arrangement that releases undercuts and thin flexible sections without unnecessary damage. Relia's prototype scope selects a cast resin and hardness for the trial, then uses its preparation and cure instructions. Gate removal and finishing must preserve the flexible features being evaluated. The assembled sample can then be checked for deflection, grip or compression under stated conditions. A useful result identifies the actual material, geometry and test, so it can inform the next design revision.

Manufacturing and project sequence
  1. Define the flexible taskCompression, bending, grip or contact
  2. Prepare master and mouldUndercuts, thin detail and release path
  3. Cast the selected gradeMaterial preparation, cure and careful finishing
  4. Assess the behaviourFit and deformation in the intended assembly

04 · FINISH

Keep surfaces and mating features explicit

Trial interfaces
Specify contact areas and mating dimensions.
Supplied surface
Agree the visible finish needed for the test.

Specify the contact areas, visible finish and interface dimensions needed for the trial. The supplied condition should support the intended prototype task without adding an unrequested treatment.

White polymer prototype and silicone-mould references shown separately
The trial part needs defined contact and mating requirements.

05 · CHECKS

Validate against the intended use

Agree the dimensional and functional review for the prototype. Recovery, flexibility or other behaviour should be assessed under the defined trial conditions, with the selected resin identified.

Checks that support approval
DimensionsControlled features
ConditionsDefined trial setup
BehaviourRequired prototype function
RecordMaterial and accepted results

06 · ITERATION

Record material and geometry changes together

Actual assembly
Compare fit, feel and deformation in use.
Controlled iteration
Record material and geometry changes together.

Compare fit, feel and deformation on the actual assembly. If sealing is being assessed, define test conditions and recognize the prototype material's limits. Keep material identity and the accepted sample with later revisions so appearance changes do not hide a change in flexibility.

Blue prototype forms protected separately in a plain tray
Trial results remain linked to the actual material and geometry.

07 · DEVELOPMENT

Keep the next manufacturing decision separate

The prototype informs the design, while the later production route needs its own material and process definition. Keep the evidence useful by recording the limits of the trial being approved.

Technical notes

Identify the compression, flexing or grip function and the mating surfaces. Include the intended deflection, repeated motion and exposure conditions. A soft cover, seal-like prototype and flexible clip may require different hardness and tear behaviour even at the same outside dimensions.

Options to compare
StageRetain
PrototypeResin, geometry and trial purpose
ChangesAffected features and recheck
Next routeProduction requirement to review

CONNECTED BUYING GUIDES

Continue with the next project decision

Follow the related component and purchasing guides, or open the catalogue reference to carry this requirement into a specific project enquiry.

RELIA · YOUR NEXT PROJECT

Share the flexible function and prototype geometry

Send the model, mating information, material targets and quantities. Add the test conditions and finish requirements. We can review a rubber-like prototype scope around the trial your design needs.

Start with these project details

  1. Model and mating information
  2. Material targets and quantities
  3. Trial conditions and function
  4. Contact surfaces and finish
Qingdao Relia Industries Co., Ltd.
Shuyuan Road, Qingdao, Shandong, China