Custom Silicone Mold for Solid Shampoo Bar Cavities
Shampoo bars that swell and lock. Draft, Shore, and lye vs syndet notes at MOQ 20.
Kyler Yang · Founder12 min read
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The bar demolds on day one and locks on week two after a humidity swing. Solid shampoo is not melt-and-pour soap. Call syndet vs lye and any salt load on the RFQ.
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.
Swell After Humidity Is a Cavity Lock
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.
Lye vs Syndet Changes Stick
| Input | What it does to the tray |
|---|---|
| Zero draft + salt | Lock |
| Draft 2-3 deg | Usual |
| Logo too deep + brittle bar | Chip on demold |
| Same as CP soap loaf | Different fill and cure |
Craft default. Not a plant mogul line. MOQ 20.
Drain Channels If You Cure in the Tray
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.
Shampoo Bar RFQ
Bar OD, chemistry family, cure in-tray or not, weekly bars.
FAQ
Conditioner bar on same tool?
Only if fill matches. Usually a second design.
Food-grade?
No unless you quoted food-contact material for an edible SKU.
Prototype?
3-7 days after CAD lock.
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.