Solution
Silicone Mold Solutions for Resin & Craft Production
RUUIPON supports resin and craft producers with custom silicone molds developed around release geometry, surface finish, casting chemistry, fragile features, production quantity and operator workflow.
Applications can include epoxy resin, polyurethane resin, plaster, decorative casting, figurines, ornaments, branded craft products and multi-cavity production.
Send Your Resin or Craft Project
Epoxy & Polyurethane Resin Molds
For resin projects, send the actual resin system when possible.
We review:
- undercuts
- master finish
- split/core strategy
- trapped air
- pour/vent access
- casting fragility
- support shell
- repeated demolding
Protect Fragile Details During Demolding
Plaster and similar mineral castings can be brittle.
DFM should consider:
- thin fingers/tips
- flat-back vs full 3D
- release direction
- split line
- casting thickness
- support during removal
A softer mold is not the only solution; geometry may need adjustment.
Use the Mold Structure That Matches the Sculpture
Possible structures:
- one-piece open-back
- slit/cut mold
- two-part mold
- removable plug/core
- silicone skin with rigid support shell
Choose the structure after reviewing the complete geometry.
The Master Defines the Casting Surface
Approve:
- smooth vs textured
- polished/cosmetic areas
- seam locations
- logos
- sculpted detail
A mold faithfully reproduces defects in the master as well as intentional detail.
Separate Mold-Side Defects From Casting-Side Bubbles
If a pit repeats in the same place, inspect the mold/master.
If bubbles move between castings, inspect:
- resin mixing
- viscosity
- moisture
- fill direction
- pressure/vacuum process
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Scale After the Single Part Is Approved
Review:
- cavity pitch
- filled weight
- tray support
- demolding sequence
- operator access
- fragile casting spacing
Validate:
- complete fill
- surface finish
- release
- seam
- fragile features
- support
- operator handling
Send:
- CAD/master/photos
- casting material
- finished size
- undercuts
- surface requirement
- cavity count
- first mold quantity
- expected casting volume
- target date
Can you make a mold from a sculpture?
Yes.
Can you make molds for plaster?
Yes. The geometry should be reviewed for fragile features and release.
Is RTV the only process RUUIPON offers?
No. This solution page focuses on flexible casting molds. RUUIPON also supports HCR/HTV, LSR and overmolding projects elsewhere in the site.
Can you create a silicone mold from 2D artwork for a plaster figure?
Yes. The 2D art can be developed into a 3D relief or sculpted model. The 3D model should be approved before the mold is made.
Can multiple Nativity/figurine characters share one multi-cavity mold?
Yes, when practical. We review depth, release, fragility, fill method and overall mold size before grouping different figures.
Can you perform a test cast before shipment?
Yes, when test casting is included in the quoted project scope. The material used for the test should be specified so the result is meaningful.
How should a flat-back decorative figure be molded?
A one-piece open-back mold is often a good starting route, but final structure depends on undercuts, depth and fragile details.