RUUIPON
Custom RTV Silicone Molds Built Around the Pour
RUUIPON pours custom RTV molds in Shenzhen: master, box, keys, jacket. MOQ 20, prototype 3–7 days after CAD lock. Send STEP, pour material, and qty.
- 2018
- Founded in Shenzhen
- 20 pcs
- Minimum order quantity
- 3-7 days
- Prototype lead time
- FDA / LFGB
- Food-grade options
Most buyers ask this first
RTV or HTV - which mold process fits your job?
Liquid pour around a master is not the same as compression-molded silicone. Read the buyer guide before you freeze tooling.
Shenzhen workshop since 2018
Real factory photos from RUUIPON
Shots from our Bao'an workshop — where custom silicone molds are made. No stock photos.
Documents on request
ISO 9001 plus compound test reports — not a blanket factory stamp
Food-contact jobs get the FDA / LFGB pack that matches the compound and lot you order. We do not market RUUIPON as an "FDA-approved factory." Name US retail, EU, or craft-only on the RFQ.
Business license
Shenzhen Ruipeng Silicone Products Technology Co., Ltd. (深圳市锐鹏硅胶制品科技有限公司). Unified Social Credit Code 91440300MA5FAXCN9W. Legal representative 杨开乐. Issued 2018-09-19. Not a sister-company (WYD) license.
ISO 9001
Historical quality management system certificate scan. Compound and lot documents are issued separately on request.
FDA compound report
Lab report on mixed silicone compound — not an FDA-approved factory claim. Issued on food-contact RFQs.
Meet buyers in person
Real exhibition meetings — not stock photos
Chinaplas and overseas trade shows: RFQ notes, sample reviews, and face-to-face mold discussions with brand buyers.
Proof in motion
Demold clips from real molds
Short factory phone clips - compressed for the web. Tap Play to load a clip.
Mahjong demold
Clean release - detail stays in the cast, not stuck in the cavity.
Peony / mousse finish
Deep petal detail from platinum-cure silicone tooling.
Handmade soap cast
Finished soap from custom cavities — edge and logo hold.
Imperial-seal mousse
Sharp emboss for dessert and confectionery molds.
What you buy on this site
What you're actually buying
The object is a poured tool: master, mold box, A/B mix, vacuum degas, cavity, registration keys, and usually a support jacket. You dump chocolate, pectin, resin, wax, or soap into that cavity. A PDF full of cold-runners and heated manifolds is a molded silicone part quote - that PO belongs on wydsilicone.com.
- 1Master
- 2Mold box
- 3A/B mix
- 4Vacuum
- 5Cavity
- 6Keys
- 7Jacket
What that cavity dumps
Most inquiries are not "make this shape." They're:
- 1
Will a sticky pectin gummy leave without stretching the tray?
- 2
How deep can a logo go before thin letters tear on demold?
- 3
Does this deep candle or resin part need a one-piece glove, a keyed split, or a skin plus mother mold?
- 4
How many cavities fit before the sheet sags when every pocket is full?
- 5
Which Shore A range flexes enough without losing size?
- 6
Does this food job need 177.2600, LFGB, both, or neither?
Those are cheaper to settle before anyone weighs A/B. We work from STEP/STL, a drawing, a physical sample, or measured photos.
Don't mix three quotes
Common mix-up: RTV vs HTV vs LSR
Liquid pour around a master is not compression-molded silicone, and it is not LSR injection. A Shore number without chemistry is noise.
| Compare | RTV (this site) | HTV / HCR | LSR |
|---|---|---|---|
| Object | Cavity you pour into | Molded silicone part | Molded silicone part |
| Process | Liquid A/B around a master | Compression in steel | Injection, cold-runner |
| Quote | RUUIPON RTV tool | Parts OEM / WYD | Parts OEM / WYD |
Buyer checklist
What to ask when you're buying this mold
01 · Object
Is the quote for a poured RTV cavity I'll cast into, or for a molded silicone part?
02 · Master
Who makes and who keeps the master, and may the shop keep a copy for recasts?
03 · Structure
One-piece, keyed split, inner core - and is there a rigid jacket?
04 · Chemistry
Platinum or tin, and which food-contact path if the face touches food (177.2600 and/or LFGB / BfR XV)?
05 · Volume
Cavity grams or fill weight, first lot, monthly dumps, and is a recast of the skin in the price?
If the quote only says "custom silicone mold" and a number, you're not comparing the same job. Paying a tooling charge does not, by itself, give you unrestricted ownership of master, jacket, or CAD.
Who this site is for
Who buys from RUUIPON
Etsy & Shopify sellers
Launch a signature shape without factory MOQs of 1,000-5,000. First trays start at MOQ 20 per design.
Food & confectionery brands
Logo chocolate bars, branded gummies, and bakery molds with food-grade silicone and certs.
Candle, soap & fragrance makers
Pillar, container, wax melt, and soap molds engineered for clean release and repeat pours.
OEM / private-label buyers
DFM review, prototype approval, then production tooling with QC and global shipping options.
Worked example
12-cavity 18 mm bear, about 2,000 dumps a month
Food-contact pectin, target about 4.0 g. The RTV job is a CNC or fully post-cured SLA master, platinum A/B, Shore 10A-20A skin, rigid jacket so the loaded edge does not sag 0.5-1.5 mm, then a water-volume map before MOQ 20. A recast of the face after a logo change is usually cheaper than a new master if the jacket still keys.
A PDF with heaters and a cold-runner is a molded part. It will not dump pectin.
By pour
Custom mold categories by pour
Pick the category by what leaves the cavity. Full cards sit in Applications below.
Path
From drawing to working mold
1
Send the part
STEP/STL, sketch, sample, or measured photos.
2
DFM
Draft, undercuts, wall, layout, logo depth, pour.
3
Approve cavity
Simple 3D is $50 when that scope applies.
4
Prototype
Usually 3-7 business days after CAD lock.
5
Production
MOQ 20 pieces per design after sample approval.
Wrong quote
When this homepage is the wrong quote
Thousands of vulcanized silicone parts, LSR injection, or high-volume steel gummy depositing tools belong on a parts OEM or wydsilicone.com. A catalog ice cube that already matches the pocket is also the wrong spend.
Geometry can override quantity: a one-off deep-undercut resin figurine is still RTV at 20 pieces; 10,000 identical spatulas are not.
Do not send
We would not take a generic free-quote brief
- A photo titled "silicone mold" with no pour and no quantity.
- Raising Shore A first to stiffen a floppy sheet - add a jacket or cut cavities.
- An LSR spatula PDF as 177.2600 on this RTV cavity.
- Cutting LSR steel "so we can scale later" while you still need to dump pectin.
Structure
RUUIPON mold structure decision
Walk the three questions. Do not paste a mermaid chart into the RFQ.
Ask 1
Flat back?
Yes: Open-back RTV
No: Check undercuts next
Ask 2
Deep undercuts?
Yes: Two-part, plug, or inner core
No: Open-back can still peel
Ask 3
Large wet dump or soft Shore?
Yes: Mother mold / jacket
No: Tiny shallow tray can stand alone
Numbers we actually use
Typical shop values
Typical shop values, not a named lot.
- Shop
- Bao'an, Shenzhen; founded 2018
- MOQ
- 20 pieces per design after sample
- Prototype
- 3-7 business days after CAD lock
- Simple 3D
- $50 when that scope applies
- Production
- Usually 2-4 weeks
- Cavity Shore
- 10A-20A skin + jacket when loaded
- Mix
- Platinum 1:1 or 10:1; vacuum degas
- Platinum shrink
- About 0.1-0.3% after full cure
- Loaded-edge sag
- About 0.5-1.5 mm if unsupported
- Outer-row gummy
- Often 3-6% heavy if the tray sags
Applications
Custom silicone mold solutions by application
Whether you cast resin, pour candles, mold gummies, or bake themed desserts - we engineer the right silicone grade, Shore A hardness, and cavity layout.
Custom Silicone Gummy Molds
When sticky pectin stretches soft trays and piece weight drifts, you need custom silicone gummy molds cut for your grams, Shore A, and FDA/LFGB path - MOQ 20, prototype in 3-7 days.
View product →
Custom Silicone Resin Molds
Custom epoxy and UV resin molds at MOQ 20 - Shore A 20-40 for undercuts and trays, prototype in 3-7 days, platinum-cure production tooling.
View product →
Custom Silicone Chocolate Molds
Food-grade custom chocolate molds at MOQ 20 - logo bars, bonbons, cocoa bombs, FDA/LFGB docs, prototype in 3-7 days for seasonal launches.
View product →
Custom Silicone Candle & Soap Molds
Custom candle molds at MOQ 20 - soy/paraffin Shore A 30-40, heat-resistant platinum, prototype pour in 3-7 days for pillars and figurines.
View product →
Custom Silicone Baking Molds
Food-grade custom baking molds at MOQ 20 - Shore A 35-45, FDA/LFGB docs, prototype bake in 3-7 days for seasonal trays.
View product →
Custom Silicone Soap Molds
Custom soap molds at MOQ 20 - Shore A 25-35 for clean peel, logo bars and loaves, prototype in 3-7 days.
View product →
Custom Silicone Ice Molds
Food-grade custom ice cube, sphere, and branded ice molds for bars, restaurants, and beverage brands - FDA/LFGB available, MOQ 20.
View product →
Custom Silicone Wax Melt Molds
Custom wax melt molds at MOQ 20 - consistent cavity grams for clamshells, Shore A 30-40, prototype pour in 3-7 days.
View product →Multi-Cavity Silicone Molds
Multi-cavity trays sized for fill weight and tray stiffness - not the highest cavity count on a floppy sheet. MOQ 20 per design.
View product →Why RUUIPON
Why order custom silicone molds from us?
Design flexibility without MOQ 5,000
Most factories push high minimums. We accept orders from 20 pieces so you can test a line before scaling.
Prototype before you commit
Send STEP/STL or a sample. CAD approval, then a working prototype mold in 3-7 business days.
Material matched to your application
Platinum-cure for resin & crafts; food-grade for chocolate, candy, and baking with FDA/LFGB on request.
Clear quotes within 24 hours
Share your design and casting material - we confirm silicone grade, hardness, cavities, and lead time so you can decide fast.
Process
How custom mold manufacturing works
- 1
Share your design - sketch, photo, sample, or 3D file
- 2
DFM review & quote within 24 hours
- 3
Prototype mold in 3-7 days for test casting
- 4
Production tooling with QC + test cast
- 5
Ship worldwide - FOB/EXW or DDP
Materials & quality
Silicone grades built for your casting process
The right silicone grade and Shore A hardness protect detail, demolding speed, and food-contact compliance - we specify both during DFM, not after tooling.
Platinum-cure silicone
Low shrinkage, long shelf life, and clean release - preferred for resin, crafts, and most production molds.
Food-grade silicone
Formulated for chocolate, candy, baking, and ice contact. FDA and LFGB documentation available on request.
Shore A hardness matching
Softer grades for deep undercuts; firmer grades for sharp edges, multi-cavity trays, and high-cycle demolding.
Multi-cavity & production tooling
From single-cavity prototypes to multi-cavity trays sized for your fill weight and packaging line.
Get a quote faster
What to send for an accurate custom mold quote
Complete briefs get clearer pricing and fewer revision loops. Include as much of the checklist below as you can - even a sketch is enough to start.
Design file or reference
STEP, STL, AI, PDF, photo of a sample, or a rough sketch - we can refine CAD with you.
Target material to cast
Resin, chocolate, gummy, wax, soap, dough, plaster, or another compound - this drives silicone grade.
Quantity & timeline
Prototype only, first production run, or ongoing OEM. Share target ship date if you have one.
Certification needs
FDA, LFGB, or none. Food-contact vs craft use changes material and documentation.
Solutions
Built for your buyer journey
Food & Confectionery
Food-grade custom molds for chocolate, candy, gummy, and bakery brands that need certification-ready silicone and low MOQ.
Crafts & Resin
Precision resin and craft molds for makers, Etsy sellers, and product designers scaling from prototype to small production.
Candle & Soap
Durable molds for pillar candles, wax melts, and soap bars - built for makers launching signature collections.
OEM & Small Business
OEM/ODM mold design for Shopify, Etsy, and DTC brands - low MOQ, sample-before-production, global shipping.
Hospitality & Beverage
Branded ice, drink garnish molds, and food-safe silicone tools for hotels, bars, restaurants, and beverage brands.
Decision guide
Custom silicone molds vs off-the-shelf
Off-the-shelf molds win on speed and low upfront cost for generic shapes. Custom molds win when branding, cavity consistency, or production layout matters - logo bars, signature resin forms, multi-cavity trays matched to fill weight, and private-label packaging.
If you are launching a differentiated product or scaling past one-off crafts, custom tooling usually pays back in fewer rejects, clearer brand identity, and repeatable output.
Read the full comparison →| Factor | Custom | Off-the-shelf |
|---|---|---|
| Brand / logo | Yes | Rarely |
| MOQ | From 20 pcs | Usually 1 unit |
| Cavity consistency | Engineered | Varies by SKU |
| Lead time | Prototype 3-7 days | Immediate if in stock |
| Best for | Launch & OEM | Generic crafts |
FAQ
Frequently asked questions about custom silicone molds
Straight answers on MOQ, lead time, food-grade options, files, and shipping - the questions buyers ask before requesting a quote.
What is the MOQ for custom silicone molds?
Our standard MOQ is 20 pieces per design. Smaller test runs may be possible - contact us with project details.
How long does a custom silicone mold take?
Prototypes typically ship in 3-7 business days after design approval. Production is usually 2-4 weeks depending on cavities and quantity.
Can you make food-safe silicone molds?
Yes. We use platinum-cure food-grade silicone and can supply FDA and LFGB documentation for chocolate, candy, baking, and ice applications.
What files do I need for a quote?
STEP/STL is ideal. We also work from PDF drawings, AI/SVG logos, photos of physical samples, or hand sketches. Share the material you will cast and target quantity.
Custom silicone molds vs off-the-shelf - which should I buy?
Buy off-the-shelf for generic shapes and fast retail availability. Choose custom when you need a logo, unique geometry, consistent cavity weight, or brand differentiation. See our full comparison guide on the blog.
Do you ship internationally?
Yes. We ship worldwide from Shenzhen with FOB, EXW, or DDP options. Lead times and duties depend on destination and Incoterms.
What silicone hardness (Shore A) do I need?
It depends on undercuts, detail, and demolding force. Soft grades suit deep undercuts; firmer grades suit sharp edges and multi-cavity production trays. We recommend hardness during DFM review.
Do you compete with large gummy factories?
RUUIPON focuses on custom design, low MOQ, and multi-category molds (resin, candle, chocolate, baking, crafts). For high-volume gummy steel mold production, see our sister site wydsilicone.com.
Learn
Guides that attract organic search traffic
Long-form guides capture buyers researching process, cost, and certification - then route them to a quote.
2026-09-03 · 12 min
How Much Does 3D Modeling Add to a Silicone Mold Project?
3D modeling cost depends on whether the factory is cleaning CAD, rebuilding geometry, reverse engineering a sample or sculpting an organic form. Learn what buyers are actually paying for.
2026-09-03 · 12 min
Why Two-Part, Mother-Mold and High-Cavity RTV Tools Cost More
Why two-part molds, removable cores, FRP mother molds and high-cavity RTV trays cost more-and when the added structure is actually justified.
2026-09-03 · 12 min
What Should Be Included in a Silicone Mold Tooling or Setup Fee?
A custom RTV tooling fee may cover CAD, DFM, master production, prototype, cores, mother molds and test casting. Learn what buyers should ask to see itemized.
2026-09-03 · 12 min
Total Cost of Ownership for Custom Silicone Molds (Not Just Unit Price)
Compare custom silicone molds by cost per good casting, not only unit price. Include usable cycles, operator labor, rejects, downtime, freight and replacement cost.
2026-09-03 · 12 min
DDP Shipping Custom Silicone Molds From China to the USA or Europe
DDP, DAP, FOB and EXW for custom silicone molds explained: volumetric weight, carton size, deformation-safe packing, destination data and when freight must be re-quoted.
2026-09-03 · 12 min
STL vs STEP vs OBJ for Custom Silicone Mold Development
Which 3D file should you send for a custom silicone mold? STEP is best for editable dimensions, STL for meshes/printing, and OBJ for sculpted/textured geometry.
Start your custom silicone mold project
Send your design, target material, and quantity. We confirm silicone grade, hardness, and certification needs - usually within 24 hours.
Custom Silicone Molds for Brands, Makers & Small Businesses