RIM Molded for Zero Water Absorption, UV Stability & Corrosion Resistance. MOQ from 50 pcs, 25–35 day lead time.
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Zero water absorption, salt-spray resistant, and 40% lighter than traditional materials
<0.1% water absorption in 24h testing. No swelling, no delamination, no foam core saturation.
Proven 12+ month marine exposure with zero degradation. Gel coat or paint finish available.
Density 1.03 g/cm³. Reduces draft, improves fuel efficiency, easier handling.
No rust, no electrolysis. Outperforms aluminum in saltwater environments.
Gel coat or paint-ready. UV-stable topcoats in any RAL/Pantone color.
Single-shot parts up to 2 m+. Console shells, hatch covers, trim in one molding cycle.
Real marine parts molded by HongFox
| Property | Value | Note |
|---|---|---|
| Material | Polydicyclopentadiene (PDCPD) | Thermoset RIM |
| Density | 1.03 g/cm³ | vs 1.2 FRP |
| Water Absorption (24h) | <0.1% | GB/T 1034 |
| Unnotched Impact | 25–80 kJ/m² | GB/T 1043 |
| HDT (1.8 MPa) | 95–110 °C | Marine grade |
| Salt Spray Resistance | 1000h no degradation | ASTM B117 |
| UV Stability | 2000h QUV, ΔE<2 | ASTM G154 |
| Service Temp | −60 to 205 °C | stable |
| Wall Thickness | 2–12 mm | foam core optional |
| Cure Time | 30–180s + 5–20min demold | RIM |
STEP/IGES input → DFM in 3 days. Aluminum (prototype) or steel (production) molds.
Gel coat, paint (RAL/Pantone), foam-core sandwich, gasket grooves, stainless inserts.
100% dimensional inspection, salt-spray test reports, batch traceability.
MOQ: 50 pcs (aluminum) / 200 pcs (steel). First article 18–25 days. Batch 25–35 days FOB.
Ergonomic console shells with integrated dash mount, waterproof sealing grooves.
Watertight hatch covers, decorative trim, zero water absorption after years of service.
Large-format structural components. Foam-core sandwich for stiffness without weight.
PDCPD has zero water absorption vs FRP's 0.5-1%. No gel coat blistering, no osmotic degradation. 40% lighter than steel-reinforced FRP. Lower tooling cost than hand-layup mold setup.
Yes. We can mold over PU foam cores for sandwich structures — excellent stiffness-to-weight ratio for large panels and hull sections.
UV-stable topcoats tested to 2000h QUV with ΔE<2 color shift. Suitable for Caribbean, Southeast Asia, Middle East.
~30 days including aluminum mold and first-article approval. CNC foam model available for design validation pre-mold.
Yes. 1000-hour salt spray testing per ASTM B117 available for every marine batch. Report included with shipment.
Yes. Minor damage can be repaired with epoxy fillers and paint blending. For structural repairs, we provide patch molding service.
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WhatsApp: +86 131 4181 1568 · Email: sales@hongfox.com
