HongFox manufactures PDCPD (polydicyclopentadiene) UAV fuselages, robot covers, yacht hulls & EV enclosures via low-pressure RIM molding. Density 1.03 g/cm³, HDT up to 110°C, batch from 50 pcs.
Low-pressure reaction injection molding — the sweet spot between performance and economics
<1 MPa cavity pressure. Aluminum or steel molds. Wall thickness 2–12 mm. Parts up to 2 m+ in a single shot. Cure time 30s–3min.
Unnotched impact 80 kJ/m² — absorbs crash energy instead of splintering. Fully transparent to GPS, 5G & RC telemetry signals.
Density 1.03 g/cm³ — ~40% weight reduction vs steel, competitive with aluminum, yet far more impact-tolerant.
Tooling cost 60–80% lower than injection molding. Viable from 50 pcs to 5,000 pcs. No minimum run penalty.
Five core product lines, one manufacturing process — engineered for your application
Fuselages, arm covers, gimbal housings, VTOL bodies. RF-transparent, crash-tolerant, paint-ready.
Quadruped shells, sensor pods, joint housings. Design freedom for complex geometries.
Console shells, hatch covers, trim. Zero water absorption, UV-stable, salt-spray resistant.
Battery pack cases, inverter housings. Flame-retardant, IP67 sealing capable.
Verified data — test methods per GB/ISO standards
| Property | PDCPD Value | Test Standard | vs Steel | vs Aluminum |
|---|---|---|---|---|
| Density | 1.03 g/cm³ | GB/T 1033 | ~7.5× lighter | ~2.6× lighter |
| Tensile Strength | 51–60 MPa | GB/T 1040 | Lower | Comparable |
| Flexural Modulus | 2.0–2.2 GPa | GB/T 9341 | Lower | ~60% |
| Unnotched Impact | 25–80 kJ/m² | GB/T 1043 | Far superior | Superior |
| HDT (1.8 MPa) | 95–110 °C | GB/T 1634 | Lower | Comparable |
| Service Temp | −60 to 205 °C | — | Comparable | Better |
| Water Absorption | <0.1% (24h) | GB/T 1034 | Similar | Better |
| Mold Shrinkage | ~0.8% linear | — | Low warp, stable dims | |
From CAD file to delivered parts in as little as 25 days
DFM feedback in 3 working days
Aluminum (fast) or steel (long-run)
First article in 18–25 days
100% dimensional check
Paint, coat, pack — FOB in 25–35 days
Real projects delivered to real clients — details anonymized for IP protection
1.8 m span, 2.5 mm wall, 320 pcs delivered in 28 days. RF-transparent canopy for GNSS/telemetry integration.
Full body cover set, Class-A paint finish, 500 pcs annual contract. Crash-tested to 3m drop.
UV-stable marine console, foam-cored sandwich, 45 pcs pilot batch. Zero water absorption after 6 months.
Technical content for engineers and procurement teams
When does thermoset RIM beat composite layup? A data-driven comparison for structural shell applications.
Everything you need to know about batch sizes, tooling choices, and realistic delivery timelines.
Why PDCPD undercuts traditional materials for low-to-mid volume EV enclosures.
Quality assurance you can verify
Reliable minimum wall thickness is 2 mm. For small parts with support ribs, we can go down to 1.5 mm. Thick sections up to 12 mm are also achievable without sink marks due to the RIM process characteristics.
For non-primary-load skins and covers, PDCPD is cheaper to tool, isotropic in impact, and fully RF-transparent. Carbon fiber remains better for primary spars and ultra-stiff structures. Many clients use PDCPD for the fuselage skin and carbon for internal frames.
Approximately 30 days including aluminum mold fabrication and first article. Repeat batches after mold approval typically ship in 18–25 days.
Yes. We sign a standard NDA before any STEP/CAD file exchange. All client designs are kept confidential and molds are marked as client-owned property.
Yes. PDCPD accepts polyurethane, epoxy, and UV-curable topcoats directly without a gel coat. We offer primer + topcoat in any RAL or Pantone color as part of our standard service.
Minimum order is 50 pcs for aluminum mold projects. For steel molds (long-run tooling), MOQ starts at 500 pcs. We also offer CNC prototypes prior to mold commitment for design validation.
Send your requirements — we respond within 24 hours
📱 WhatsApp: +86 131 4181 1568
📍 Jiangsu, China (FOB Shanghai / Ningbo)
✅ RIM molding since 2019
✅ ISO 9001:2015 certified
✅ 500+ delivered projects
✅ 30+ export markets
✅ NDA & IP protection
✅ 24h quote turnaround
