PU Resin for LED Strip Potting: Waterproof, Flexible & Durable
PU Resin for LED Strip Potting – Top 3 Reasons It Beats Epoxy
PU resin for LED strip potting has become the top choice for manufacturers who need flexible, waterproof, and long-lasting protection for LED lights. Whether you’re working on signage, under-cabinet lighting, or IP-rated outdoor fixtures, polyurethane resin is the solution engineers trust to prevent cracks, water damage, and yellowing.
Why Choose PU Resin Over Epoxy?
1. Flexible and Crack-Resistant
PU cures with softness, not brittleness. This flexibility prevents cracking under heat cycles, vibration, or curved LED housing structures. Epoxy often fails in those conditions.
2. Waterproof to IP68 Standards
PU resin can seal LED modules to withstand harsh outdoor environments—rain, dust, humidity—without degrading or detaching. Our 1908AB PU resin is especially formulated for LED strip potting with excellent adhesion and waterproofing.
3. UV-Resistant and Anti-Yellowing
Sunlight can yellow traditional resin, but PU systems include UV stabilizers to protect appearance and clarity over time. That’s essential for long-term installations in exposed areas.
What Is the Best PU Resin for LED Strip Potting?
We recommend 1908AB, our flagship PU resin:
- ✅ Low viscosity – flows easily into tight LED channels
- ✅ No cracking – stays elastic over time
- ✅ High transparency and UV resistance
- ✅ Excellent bonding with aluminum, PC, and PVC
Best Practices for PU Potting
- Warm resin to 30°C before mixing for smooth flow
- Mix gently to avoid introducing air bubbles
- Degas if possible or use a heat gun on the surface
- Pour in layers if your mold is deeper than 10mm
- Cure in a clean, low-humidity environment
Resources and Further Reading
Browse our PU resin product catalog.
See external reference: LED Potting Materials (LEDs Magazine).
Ready to Upgrade Your LED Potting?
Contact us at sale5@wingwaiepoxy.com for TDS, pricing, or bulk sample requests.
