About · The entity behind the parts

A factory you can name

Legal entity, street address, one person who answers

Most suppliers give you a trading company, a P.O. box and an info@ address. This page gives you the registered name, the street, the plant and the man who signs the quotation.

Visits are welcome with two days’ notice — we would rather you saw the floor than a brochure.

01 — The entity

As it appears on the contract

Who you are actually buying from

The name on the quotation, the invoice and the packing list is the same name on the business licence. If a supplier cannot show you that match, the warranty has no address.

  • Legal nameDongguan Yuanhong Zhizao Technology Co., Ltd.
  • Registered addressNo. 3 Qipan Street, Liaobu Town, Dongguan, Guangdong, China
  • WorksSame site: mixing, molding, finishing, inspection and packing under one roof, plus named partner processes.
  • ContactClark · owner-level · +86 132 1533 5550 · clark@arcsilicone.com
  • Reply timeFirst reply within 24 hours, including when the answer is that we cannot make it.
  • What we are notA trading company, a broker, or a marketplace listing. No part is quoted that we cannot run or supervise.

02 — What we run

Four processes, not forty

The processes behind the six domains

We list processes rather than machine counts, because a count tells you nothing about whether the press can hold your tolerance. What matters is which process your part needs, and whether the tool was built for it.

LSR injection

Two-component platinum-cure, cold-runner, for precision parts and high cavitation.

2K overmolding

Silicone onto ABS, PC or metal in one cycle, with substrate preparation controlled.

Compression & transfer

High-consistency VMQ for large parts, thick sections and short runs.

Grinding & finishing

Rollers and precision faces ground to TIR, then measured and reported.

03 — How we check

Instruments, not adjectives

Five measurements that decide a lot

Inspection is planned per part in the DFM note: which feature, which instrument, how many samples, what happens when a value drifts. A report with no instrument named is a claim, not a record.

CheckWhat it catchesInstrumentRecord
Critical dimensionsSink, flash, tool wear, cavity-to-cavity variation.Vision system · micrometerPer lot
HardnessMix ratio drift, under-cure, compound substitution.Shore A durometerPer lot
Bond strengthInterface failure on overmolded and bonded parts.Tensile / peel rigPer lot on composites
Roundness / TIRCore bond, grinding accuracy, roller runout.Dial indicator on centresEvery roller
Visual & colourCosmetic defects, batch-to-batch colour shift.Golden sample · colourimeterPer lot

04 — Who answers

One name, one number

A person, not a mailbox

Quotations are signed by the same person who answers the technical questions, so nothing is lost between sales and engineering. If a promise is broken, there is somebody to hold to it.

Clark — owner-level, technical and commercial

Direct
+86 132 1533 5550 · WhatsApp available
Commitment
First reply in 24 hours · fit confirmation in 24 hours · quote in 48 hours

SLA, in writing

  • 24 hFirst reply to any inquiry, including a no.
  • 48 hDFM note and fixed quote, in writing.
  • 30 dT1 samples for new geometry, after drawing approval.
  • 10 dShip date on existing molds.

What he needs from you

  • PartA drawing, a 3D file, a sample or an OEM number.
  • UseWhat it seals, masks, grips or protects.
  • VolumePer order and per year — they change the tooling advice.
  • DateA real target date, so the answer is yes or no.

05 — What we don’t do

Four lines we will not cross

Said out loud, on the same page as the capability

  • Bond silicone to PP / PE29–31 mN/m surface energy. Mechanical interlock only; change the substrate.
  • Quote fuel or aromatic-oil sealsThe correct material is FKM. We name it rather than take the order.
  • Use regrind in food-contact compoundsTraceability ends at the regrind bag, so the lot cannot be certified.
  • Present a partner process as oursPartnered steps are labelled as partnered on the page and in the quote.

06 — Visit

Two days’ notice

Come and look at the floor

Liaobu is 40 minutes from Shenzhen Bao’an and 20 minutes from Dongguan Station. Bring a drawing; we will walk the process your part would take, in order, including the steps that are partnered.

  • AddressNo. 3 Qipan Street, Liaobu Town, Dongguan, Guangdong, China
  • HoursMonday to Saturday, 08:30–18:00 (GMT+8)
  • Bookclark@arcsilicone.com · +86 132 1533 5550 · two working days’ notice
Start with a question Ask the person who signs the quote

Technical questions go to the same desk as the price. No handover, no lost detail.

Write to Clark →
Start with a file Send a drawing, get a DFM note

Two pages in 48 hours, whether or not you place an order.

Start a DFM review →