Why ASEAN for rubber and silicone parts
Thailand is the world's largest natural rubber producer, and that raw-material base has grown into a deep moulding industry: compression, transfer and injection moulding for seals, gaskets, grommets, bellows, anti-vibration mounts and food-grade silicone. Vietnam has strong low-to-mid volume moulding with competitive tooling prices, and Malaysia leads in medical and cleanroom silicone.
For buyers in the US, UK, EU and Australia, the practical advantage is not only the piece price. It is that a technical part can be tooled, sampled and validated close to the compound supplier, which shortens the loop when a formulation needs adjusting.
Country strengths
| Country | Best fit | Typical strength |
|---|---|---|
| Thailand | NR, EPDM, NBR, silicone; automotive and industrial seals | Raw material base, IATF 16949 shops |
| Vietnam | Consumer and general industrial mouldings | Lower tooling cost, fast turnaround |
| Malaysia | Medical grade silicone, gloves, cleanroom | ISO 13485 capability |
| Indonesia | Large-volume commodity rubber goods | Domestic demand scale |
Specify the compound, not just the part
Most disputes we see come from vague material calls. A drawing that says "rubber gasket, black" gives the factory freedom you do not want. Specify:
- Polymer family and grade (EPDM 70, NBR 70, VMQ 60)
- Hardness in Shore A with tolerance (±5)
- Temperature range and media exposure
- Compression set requirement (ASTM D395)
- Tensile and elongation minimums (ASTM D412)
- Colour, and whether food contact (FDA 21 CFR 177.2600) or drinking water (WRAS, KTW) approval is required
Tooling and MOQ reality
Compression tooling for a simple O-ring or flat gasket is often USD 400–1,500. Multi-cavity injection tools for silicone run USD 3,000–12,000 depending on cavitation and part complexity. MOQs are usually driven by compound batch size — a typical minimum mix is 25–50 kg, which can mean 5,000–20,000 small parts.
Ask for the tool to be quoted with cavity count, steel grade and expected shot life, and confirm in writing that the tool belongs to you once paid.
Quality control that actually catches problems
- First article inspection with a dimensional report on a shadowgraph or vision system
- Material certificate per batch, plus a compound traceability code moulded into the part where space allows
- Compression set and hardness testing at agreed intervals
- Visual AQL for flash, tearing, mould release residue and inclusions
Landed cost view
Rubber parts are light but bulky. Air freight is rarely justified for anything above prototype quantities. Plan sea freight, and consolidate rubber components with other categories in the same container — that is where a trading partner running multiple factories on one purchase order saves real money. Also confirm your HS code early, since rubber articles fall across several headings with different duty rates.
How TUSKO handles a rubber programme
You place one order with TUSKO. We qualify the moulder, review the compound spec with the factory's technical team, manage tooling and sample approval, inspect production in country, and ship under one document set at a landed price. Our fee is built into the order price — there is no separate advisory charge.
Frequently Asked Questions
What is the minimum order for custom rubber parts from ASEAN?
Usually driven by the compound batch, typically 25–50 kg of mixed rubber. For small seals that can be 10,000+ pieces; for larger mouldings it may be only a few hundred.
How long does rubber tooling take?
Simple compression tools are commonly 2–3 weeks, silicone injection tools 4–6 weeks, plus 1–2 weeks for sampling and approval.
Can ASEAN factories supply food-grade or medical silicone?
Yes. Malaysia and Thailand both have shops working to FDA 21 CFR 177.2600, LFGB and ISO 13485 requirements. Ask for the certificate scope, not just the logo.
Who owns the mould?
If you pay for it, you should own it. Put ownership, storage and return conditions in the purchase order before tooling starts.
Ready to price a rubber or silicone programme? Request a consultation or run the numbers with our landed cost calculator.