CPI Sealing

Gaskets and lighting seals

CPI Sealing specializes in the manufacture of die-cast and molded profiles and gaskets for the lighting industry. We manufacture custom gaskets and seals for waterproof lights, wall lights, ceiling lamps, LED lighting, panel lights and fluorescents, among others.

We have over thirty years of experience working closely with customers to provide them with the most effective design, engineering and sealing solutions to meet their demands and obtain the required IP. The products provide long-term weather protection and reduce heat build-up, extending the performance life of lighting products. The gaskets and profiles have excellent compression set characteristics, along with high long-term strength to seal effectively. The main cause of lighting failures is rapid changes in external temperature which can cause pressure changes inside the luminaire. If the internal pressure is not equalized, the resulting vacuum will affect the internal working conditions, which increases condensation eventually causing the lighting unit to fail. Water, dirt, and dust can also degrade the performance of the light unit.

  • Materials for lighting, joints and profiles

CPI Sealing maintains a wide selection of materials that are UL/VO compliant or equivalent. They are also suitable for the isolation requirements for most lighting applications by obtaining the necessary IP.

The most common materials we use for the manufacture of lighting gaskets and seals are:

  • Open and closed cell sponge rubber (UL Listed).
  • Closed cell neoprene (UL94F – 1).
  • Sponge rubber (UL94HF).
  • Polyurethane foam.
  • Poron® foam (UL Listed).
  • Silicone foam (UL 94V-0).
  • Polyethylene foam.
  • Nomex® (by DuPont™).
  • Formex and Statex™.
  • Voltoid® Materials.
  • Fishpaper UL 94V-0.
  • EPDM.
  • silicone rubber
  • Nitrile (Buna-N).
  • SBR (styrene-butadiene).
  • Neoprene® (chloroprene).

* Most lighting joints are available with adhesive