Date | 2026-05-05 08:37:07
Find the right BMC grade for your application in seconds — from electrical insulation to automotive components, from high-temperature environments to hazardous areas.
Selecting the right BMC (Bulk Molding Compound) is a critical step in balancing performance, safety, and cost. Different applications require different priorities—flame retardancy, thermal resistance, dimensional precision, creep resistance, or chemical durability.
This quick-reference guide is based on the full BMC portfolio (14XX–20XX series) from Wenzhou Jintong, helping engineers and buyers identify the optimal solution in under 30 seconds.
| Application | Recommended Series | Key Properties | Typical Grade | Color Options |
|---|---|---|---|---|
| Smart meter enclosures / MCB housings | 16XX | 0.4 mm thin-wall V-0, CTI ≥600V, 20-year outdoor durability | BMC 1616 | All colors |
| Motor terminal boards / high-temp insulation | 18XX | Continuous ≥170°C, peak 230°C, no creep | BMC 1810 | Custom |
| Precision instrument housings / appliance covers | 17XX | Shrinkage ≤0.2%, high dimensional accuracy | BMC 1715 | Custom |
| Automotive lighting structures | 19XX | Heat resistance up to 200°C, insert-friendly | BMC 1910 | Mainly black |
| Water treatment / chemical-resistant parts | 14XX | Low water absorption ≤0.2%, hydrolysis & corrosion resistant | BMC 1415 | Custom |
| Explosion-proof electrical equipment | 15XX | Surface resistance 10⁶–10⁹Ω, אנטistatic | BMC 1510 | Black only |
| High-temperature structural components | 18XX | Long-term ≥170°C, short-term 230°C | BMC 1820 | Custom |
| General industrial structures | 20XX | Balanced mechanical performance, cost-effective | BMC 2010 | Custom |
| Energy storage battery components | 16XX / 18XX | V-0, high insulation, no melting or dripping | BMC 1616 / 1810 | Custom |
| Outdoor cable supports / distribution boxes | 16XX | UV-resistant, flame-retardant, lightweight | BMC 1620 | Gray / white |
| Composite manhole covers | 20XX | High strength, lightweight, corrosion-resistant | BMC 2015 | Custom |
Water absorption ≤0.2%
Excellent hydrolysis and corrosion resistance
Ideal for: pumps, valves, water treatment systems
Surface resistance: 10⁶–10⁹ Ω
Designed for hazardous environments
Ideal for: mining, oil & gas, explosion-proof enclosures
0.4 mm UL94 V-0
CTI ≥600V
Glow wire: 960°C
Ideal for: MCBs, meters, switchgear, EV charging
Shrinkage ≤0.2%
High dimensional stability
Ideal for: precision housings, tight tolerance components
Continuous use ≥170°C
Peak resistance up to 230°C
Ideal for: motor components, engine compartments
Designed for lighting and structural parts
Strong metal insert bonding
Ideal for: headlamp brackets, reflectors
Balanced strength and impact resistance
Ideal for: industrial housings, structural parts
| Your Priority | Recommended Series | Alternative |
|---|---|---|
| Ultra-thin flame retardancy | 16XX | — |
| Maximum temperature resistance | 18XX | — |
| Lowest shrinkage | 17XX | — |
| Antistatic / explosion-proof | 15XX | — |
| Chemical resistance | 14XX | 20XX |
| Automotive lighting | 19XX | 18XX |
| Cost-performance | 20XX | 16XX |
| Outdoor durability | 16XX | 14XX |
Need UL94 V-0 at ≤1 mm → choose 16XX
Operating above 150°C long-term → choose 18XX
Tight tolerance (<0.1 mm/100 mm) → choose 17XX
Exposure to water / chemicals → choose 14XX
Explosion-risk environments → choose 15XX
Automotive lighting components → choose 19XX
No special requirement → choose 20XX
These recommendations are based on typical performance benchmarks. For precise selection based on temperature, voltage, environment, and mechanical load, we provide:
Custom material development
Sample validation
Full technical data sheets
Wenzhou Jintong Electrical Co., Ltd.
Specialists in BMC/SMC thermoset composites and precision molding
Delivering integrated material + component solutions
📧 wendy.qiu@smcbmc.com
📞 +86 13868305300
🌐 smcbmc.net
