Custom Silicone Caps and Plugs
A silicone cap or plug that masks a thread, seals a port, or covers a connector is a molded *part* - usually HCR compression, sometimes LSR. An RTV cavity you fill with food, resin, wax, or plaster is a different object. We will not treat a chocolate-cup cavity as a masking plug.
Send the drawing or sample, intended use, material requirements and expected quantity. RUUIPON will review the manufacturing route, tooling scope and inspection needs before confirming the quotation.
Common mix-up
A chocolate "cap" cavity and a masking plug for powder-coat both look like little cups. One is a dump tray. The other is the part that ships to a line.
Typical shop values
| Object | Who quotes | Typical process |
|---|---|---|
| RTV cavity (food/resin cup) | RUUIPON | resin master to RTV casting mold |
| Silicone cap / masking plug | HTV product RFQ here, or ask us | HCR compression (often) |
Reference values only. Confirm material-specific limits against the supplier’s technical data and agree project acceptance criteria before production.
Quoted as a molded silicone article
This page quotes a molded silicone article, not an RTV casting cavity. We would not recommend using a food-tray Shore 10A-20A skin as a high-temp masking plug. We would not recommend a RUUIPON cap catalog.
Path: RTV mold vs finished part
- What ships? - silicone cap or plug part -> HTV product or mold RFQ
- Stay on RUUIPON: /contact/ -> MOQ 20 / $50 CAD when in scope / 3-7 days after CAD lock
- HTV product or mold RFQ -> MOQ, tooling cost and lead time are confirmed for the selected process, design and production quantity. RTV casting-mold terms do not apply automatically to finished silicone products.
Where to send the RFQ
Parts: thread/OD, temp, qty - send an HTV product RFQ here.
Molds: contact.
Send the drawing or sample, intended use, material requirements and expected quantity. RUUIPON will review the manufacturing route, tooling scope and inspection needs before confirming the quotation.
FAQ
Do you sell silicone masking plugs? HCR/HTV articles are an HTV product RFQ here. High-volume LSR: ask us. Cavities: RUUIPON.
I want a mold to pour resin bottle-stopper blanks. That's an RTV cavity here. Send pour material and qty to /contact/.
Mold numbers? MOQ 20, $50 modeling when in scope, 3-7 days after CAD lock.
High-temp paint-mask plugs? Send an HTV product RFQ here, or ask us. Don't copy food-mold platinum into that brief.