Published 14 Sep 2026 · WYD Silicone, Bao'an
Market
Singapore market
Sizes
20 / 25 / 40 / 50 (+30 sheet)
Shore ref
A 50
Smaller maps
72 / 30 / 20 cav
Larger maps
150 / 130 / 70 cav
Check
Plaster demold
Spacer molds are industrial RTV, not a gummy tray with a different color. Drawings covered size families 20 / 25 / 40 / 50, with 30 on a companion sheet. Quotation used Shore A 50. Layouts in the workbook were not one universal count: examples 72 / 30 / 20 on roughly 300 mm-class concepts and 150 / 130 / 70 on roughly 600 mm-class, depending on the mix. Those numbers stay on this project.
Lock which sizes share a mold
Mixing 20 through 50 on one sheet is a cavity-map decision, not a default. Cavity count changes silicone volume, footprint, filled weight, stiffness, and tear at thin features. Shore A 50 was the quoted reference here — not a rule for every concrete tool. Plaster tests showed trapped geometry, flash, thin-feature distortion, and release without wasting a concrete batch.
What to send
- Size list, mixed vs dedicated molds, pieces per cycle, max footprint
- Whether you need a rigid jacket once the sheet is full of wet mix
- Target Shore if you already have a plant standard
FAQ
Is 72 cavities the standard spacer mold?
No. 72 / 30 / 20 and 150 / 130 / 70 were examples in this quotation mix.
Why plaster first?
It shows release and cavity close without the weight and mess of a first concrete pour.
RTV on WYD?
Yes. Send the drawing pack to /contact/. We do not bounce industrial RTV off this site.
Related: RTV mold making · plaster molds · architectural pad family · send the RFQ pack.