Case study · Bao'an

Epoxy RTV family: inner and outer STEP before anyone pours a master

Five shape families and a pile of sizes will burn money if you price one 'resin mold' and guess wall thickness. This Netherlands pack stayed at engineering review.

Published 14 Sep 2026 · WYD Silicone, Bao'an

Market

Netherlands

Path

RTV silicone molds

Families

Hex / arch / emerald / bookend / square

Files

Paired inner/outer STEP

Finish options

Matte vs glossy master

Stage

Engineering / quotation

WYD quotes RTV on this site. This job is not a finished production trophy. At the archive stage it was size-family review and quotation. The buyer sent paired inner/outer STEP so wall and envelope were explicit. Shore A and a single cavity height were not locked for public use. Matte vs glossy master was split on the quote.

Family references in the file set (project-specific, not a catalog): hexagon 15/17, 20/22, 25/27 cm inner/outer; arch 28+18 / 30+20 and 23+16 / 25+18; emerald 22+15 / 24+17 and 30+22 / 32+24; left/right bookends; squares roughly 15/17 through 25/27 cm.

Pink RTV silicone arch mold beside a clear resin casting
Arch RTV mold beside a clear casting — mold/casting relationship. Not a claim that the full family was produced.
Pink RTV silicone mold for an emerald-style epoxy resin shape
One geometry from the multi-shape family, used to compare size and structure before quotation.
CAD geometry for an epoxy resin RTV mold
CAD used in the size-family review. Height was not locked as one public number.

Build a matrix before you price silicone

Shape, inner, outer, height, finish, split, how many RTV copies per master. Missing height is a cost hole: a deep block uses more master time and silicone than a shallow tray with the same plan view. We will not invent a height from a screenshot.

What to send

  1. Inner and outer STEP (or wall thickness written next to the cavity solid)
  2. Size matrix, cavity height per SKU, matte vs gloss on the master
  3. How many silicone copies you need to start vs later

FAQ

Was this a finished production order?

Not in the files we publish. Engineering and quotation. Photos show family geometry, not a completed SKU list shipped.

Do you send RTV quotes off this site?

No. RTV and HTV RFQs stay on wydsilicone.com.

Why no Shore A?

It was not locked in the archive. Copying a food-tray Shore onto a deep resin block is a new DFM.

Related: RTV mold making · resin molds · craft molds · send the RFQ pack.

Send the inner/outer pair and the height

If the quote is still a pile of STEP names, we will put them in a matrix before anyone cuts a master.