Wenzhou Jintong Complete Appliances Co., Ltd.

Wenzhou Jintong Complete Appliances Co., Ltd. One-stop solutions from material, mold to finished products.

With high strength, fire resistance, electrical insulation, corrosion resistance, and durability, widely used in electrical,automotive, new energy, construction, and industrial components.

Sourcing BMC from China? The lowest quote is rarely the cheapest part.A molded thermoset part is not a commodity. The co...
28/09/2026

Sourcing BMC from China? The lowest quote is rarely the cheapest part.
A molded thermoset part is not a commodity. The compound, the mold and the molding process interact — and if a supplier is strong in one while outsourcing the other two, you absorb the cost as warping, porosity or dimensional drift.
Before you compare prices, check three things:
🔹 Is it a real manufacturer, or a trading company? Ask for the production address, and ask which workshop runs which process.
🔹 Can the qualifications be verified? Ask for the UL Yellow Card number and look it up yourself — ours is E504820.
🔹 Are material, mold and molding under one roof? A molder that formulates its own compound can fix a warping problem instead of negotiating whose fault it is.
We put the full 8-point checklist together here 👇👇👇👇
Wenzhou Jintong has manufactured BMC/SMC components in Wenzhou, China since 2001, with material, mold and molding in-house.
📧 [email protected]

Sourcing BMC or SMC from China? Use this 8-point checklist to verify a supplier before comparing quotes: qualifications, capability, tooling, consistency.

⚡ A meter box sits outdoors for 20 years. The material decides whether it lasts that long.Three things worth checking be...
21/09/2026

⚡ A meter box sits outdoors for 20 years. The material decides whether it lasts that long.
Three things worth checking before you compare suppliers:
UL94 V-0 flame retardancy — even at 0.4 mm wall thickness
CTI ≥600 V — condensation and dust inside the box make tracking a real hazard
Weather resistance and dimensional stability — no warping, no cracking
BMC is a thermoset: it does not melt, it barely creeps, and it holds its shape outdoors. We have molded BMC/SMC since 2001 — material, mold and molding under one roof.
Working on meter box or outdoor electrical enclosures? Let's talk.
📧 [email protected]

Choosing a BMC enclosure for an electricity meter box? Check UL94 V-0 at 0.4 mm, CTI ≥600 V tracking resistance and outdoor dimensional stability first. Wenzhou Jintong supplies flame-retardant BMC and molding for smart meter boxes — UL Yellow Card E504820. | Wenzhou Jintong

⚡ A busbar carries serious current — but it is the little insulation parts that keep it safe.At short circuit, the elect...
07/09/2026

⚡ A busbar carries serious current — but it is the little insulation parts that keep it safe.
At short circuit, the electrodynamic force can hit thousands of newtons. When a switch opens, arcing and heat follow. So busbar clamps, brackets and standoff insulators have to insulate, resist arcing and hold fast — all at once.
That’s exactly what BMC is for. Electric strength ≥20 kV/mm, insulation resistance ≥1.0×10¹³ Ω (normal), arc resistance ≥180 s, PTI ≥600 V, UL94 V-0 at 0.4 mm (per our standard and GB/T 23641-2018). One molding, all of it.
We’ve been molding BMC/SMC since 2001 — material, mold and molding under one roof. Building a busbar system or switchgear? Let’s talk.
📧 [email protected]

A busbar needs reliable insulation supports. Wenzhou Jintong BMC is used for busbar clamps, brackets and standoff insulators, with electric strength ≥20 kV/mm, insulation resistance ≥1.0×10¹³ Ω (normal), arc resistance ≥180 s, PTI ≥600 V and UL94 V-0 (per Q/JTJ0001-2025 and GB/T 23641-20...

⚡ In a coal mine, static electricity is no small thing.It builds up on insulating surfaces and one tiny discharge can ig...
31/08/2026

⚡ In a coal mine, static electricity is no small thing.
It builds up on insulating surfaces and one tiny discharge can ignite methane or coal dust. That’s why mining electrical parts need to resist static — not just insulate.
Our BMC 15XX is engineered for anti-static performance, with surface resistivity of 10⁶–10⁹ Ω (in-house testing, typical) — enough to dissipate charge, with a safety margin. Black only, built for explosion-prone environments.
We’ve been molding BMC/SMC since 2001 — material, mold and molding under one roof. Working on mining electrical components? Let’s talk.
📧 [email protected]

In flammable coal-mine environments, insulation parts must resist static as well as insulate. Wenzhou Jintong BMC 15XX series offers surface resistivity of 10⁶–10⁹ Ω (in-house testing, typical), for mining flameproof enclosures and junction boxes; classification per T/CEEIA 904-2025. | Wenzho...

💧 Water is the silent enemy of electrical insulation.A little moisture seeps in. Insulation resistance drops. And one da...
24/08/2026

💧 Water is the silent enemy of electrical insulation.
A little moisture seeps in. Insulation resistance drops. And one day, a pump or valve part quietly fails.
That’s why we engineer BMC 14XX for hydrolysis resistance and low water absorption — so parts in chemical pumps, valves and underwater equipment keep their insulation where it matters most: wet.
Wet-state insulation resistance ≥10¹² Ω after 24 h (in-house testing, typical).
Molding BMC/SMC since 2001 — material, mold and molding under one roof. Facing humid-service insulation challenges? Let’s talk.
📧 [email protected]

In wet environments, hydrolysis resistance and low water absorption are critical for insulation parts. Wenzhou Jintong BMC 14XX series is engineered for hydrolysis resistance, with wet-state insulation resistance ≥10¹² Ω (24 h) and ≥1.0×10¹³ Ω normal (per Q/JTJ0001-2025 and in-house testi...

🔧 Ever wondered why a metal insert loosens inside a molded plastic part — or cracks the plastic around it?It usually com...
17/08/2026

🔧 Ever wondered why a metal insert loosens inside a molded plastic part — or cracks the plastic around it?
It usually comes down to thermal expansion. PA66 expands 5–6× more than copper, so heat cycling slowly tears the interface apart.
BMC is different — its expansion rate sits in the same range as steel and copper. Inserts stay tight. Parts stay intact. That's why BMC insert molding is trusted in breakers, contactors and high-voltage connectors.
We've molded BMC/SMC since 2001 — material, mold and molding under one roof. Facing insert loosening or cracking? Let's talk.
📧 [email protected]

How does BMC insert molding achieve precision fit? Thermal expansion matching (BMC CLTE 13–35×10⁻⁶/℃ vs PA66 80–100), positioning accuracy (±0.02 mm cavity), preheating and interface bonding — plus failure modes and countermeasures. Wenzhou Jintong: integrated material, mold and moldin...

Ever been asked "Do you have UL certification?" — and wondered what they actually mean?Chances are, they're asking about...
12/08/2026

Ever been asked "Do you have UL certification?" — and wondered what they actually mean?

Chances are, they're asking about the UL Yellow Card — independent, third-party verification of material performance. It's the shortcut engineers use to screen materials without waiting for paper test reports.

Wenzhou Jintong's BMC 1616 grade holds UL Yellow Card certification (File E504820), publicly queryable in the UL Product iQ database.

We've broken down what a Yellow Card really certifies, why customers ask for it, and how the process works.

The UL Yellow Card is third-party verification of material performance — UL94 flammability, RTI thermal rating, CTI tracking resistance, and more. Learn what each parameter means, why customers require it, and how Wenzhou Jintong's BMC 1616 grade is UL Yellow Card certified (File E504820).

📋 Exporting BMC/SMC parts to Europe? The compliance checklist just got longer.🧪 RoHS → 10 restricted substances. Baselin...
03/08/2026

📋 Exporting BMC/SMC parts to Europe? The compliance checklist just got longer.

🧪 RoHS → 10 restricted substances. Baseline entry ticket.
⚗️ REACH → 240+ SVHCs. Every formulation must be screened.
💶 CBAM → Carbon-footprint data is now a supplier qualification question.
🔋 Battery Regulation → Carbon declarations + digital passports. Relevant for energy storage.
🚆 EN 45545-2 → Rail fire safety. Smoke density & toxicity testing — non-negotiable.
♻️ ELV revision → 25% recycled plastic content proposed for new vehicles. One to watch.

Six pathways, one roadmap. Full breakdown at the link.

Exporting BMC/SMC parts to Europe now requires navigating RoHS, REACH, CBAM, the EU Battery Regulation, EN 45545-2, and the revised ELV directive. This article maps all six, explains what each means for thermoset molders, and outlines a four-tier compliance action framework.

Your insulator is also a thermal bottleneck. Here's how to fix that.Standard BMC and SMC are great electrical insulators...
27/07/2026

Your insulator is also a thermal bottleneck. Here's how to fix that.

Standard BMC and SMC are great electrical insulators — and terrible heat conductors (0.2–0.6 W/m·K). For an EV onboard charger or an 800 kW charging connector, that's a problem.

The new T/CEEIA 905-2025 standard defines "thermally conductive BMC" for the first time: ≥ 1.3 W/(m·K). That's a 2–6× jump in heat-transfer capability — without sacrificing V-0 flammability or PTI ≥ 600 V.

We break down the phonon physics, the filler systems (alumina + boron nitride), and a five-step selection framework for engineers.

T/CEEIA 905-2025 sets the first quantitative benchmark for thermally conductive BMC (≥1.3 W/m·K) and SMC (≥1.0 W/m·K). This article explains the phonon physics, filler systems, and application logic behind heat-dissipating insulation—from EV onboard chargers to motor encapsulation.

Why is almost all anti-static BMC black? And can you get it in another color?Static discharge can destroy a chip, ignite...
23/07/2026

Why is almost all anti-static BMC black? And can you get it in another color?

Static discharge can destroy a chip, ignite methane, or shut down a production line. Anti-static BMC solves this by embedding a conductive network inside the polymer — dropping surface resistivity from 10¹³ Ω down to 10⁵–10¹¹ Ω.

The new T/CEEIA 904-2025 standard defines three grades (AS-1, AS-2, AS-3) for the first time. But here's the part most engineers don't know: the industry standard anti-static filler — carbon black — locks you into one color. Black.

We've changed that. Non-black anti-static BMC meeting AS-3 requirements is now possible.

Static discharge can destroy electronics and ignite hazardous atmospheres. The new T/CEEIA 904-2025 standard defines three anti-static grades for BMC/SMC molding compounds. Learn how to specify AS-1, AS-2, or AS-3 materials — and why non-black anti-static BMC is now achievable.

Address

No. 7 Shuangyu Road, The Gulf Of Yueqing
Wenzhou
325600

Opening Hours

Monday 08:00 - 17:00
Tuesday 08:00 - 17:00
Wednesday 08:00 - 17:00
Thursday 08:00 - 17:00
Friday 08:00 - 17:00
Saturday 08:00 - 17:00

Telephone

+8657762927561

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