Custom Silicone Mold for Resin Bookend Blocks
Bookends that undercure in the core. Depth vs heat, Shore, MOQ 20.
Kyler Yang · Founder12 min read
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A 70 mm block that cured as a 12 mm coaster stays soft in the core and then you post-cure until the tray warps. Depth is a chemistry limit, not a 'better silicone'.
RUUIPON cuts custom silicone molds in Shenzhen since 2018 for brand and Shopify buyers, not kitchen DIY kits. MOQ 20 trays per design. Complete RFQs typically get a reply in about 24 hours. Prototype is commonly 3-7 business days after CAD lock. Drawing deposit ~$50 USD when we must model cavities.
Soft Core in Thick Blocks
This section is the failure mode we see on restock, not a keyword definition. If the first sample looked fine, wait until cavity 8-20 before you approve a production sheet.
Post-Cure vs Tray Warp
| Input | What it does to the tray |
|---|---|
| 70 mm one-shot epoxy | Soft core risk |
| Layer pour | State it |
| One-piece undercut statue | Split |
| MOQ 20 | Per design |
MOQ 20. Prototype 3-7 days after CAD lock.
Split Tools for Deep Blocks
Do not reuse a Shore band from a different fill. Platinum-cure is the default production sheet. Shrink is compensated in CAD (~0.1%) when you send a solid. We do not lock a marketing cycle-life number.
Bookend RFQ
Block XYZ mm, resin system, peak C, whether layered.
resin molds. jewelry cavities are the opposite scale.
FAQ
Wood insert in the block?
Send the insert envelope in mm.
MOQ?
20.
UV resin?
Usually the wrong path for 70 mm.
Quote: contact or WhatsApp +86 135 3006 2969.
Ready to order custom silicone molds?
Free quote for OEM/ODM projects. MOQ 20 · Prototype 3-7 days · FDA/LFGB available.