Customer solutions

L&L Products is the industry leader in the formulation of innovative, high performance sealing solutions. Our three-dimensional molded or extruded parts are typically installed in the body shop or paint shop. Upon heating to the e-coat curing temperature, the material expands to close the cavity. Their primary purpose is to provide a barrier against water, dust and noise.

HOT SEALS L&L Products developed a cost effective solution for cavity sealing; our chemists have developed an innovative material that expands up to 2000% with good acoustic properties. An integrated carrier allows shaping and fixing the material to fit most pillar sections. This patented technology provides for multiple applications with a single design. L&L Products can supply prototypes in as little as 24 hours.
Stick-on tapes This is a self-supporting easy to apply baffle concept. The material base contains the expandable formulation and adhesive. The expansion rate exceeds 1000%. Assembly is fast and easy thanks to a meltable film over the part. Our tapes have excellent adhesion on any body substrate: steel, aluminum, magnesium, and even oily panels.
Baffles Typical applications include body pillar cavities, such as roof side rails and rocker panels. The expandable material is die-cut or injection-molded and assembled onto a carrier (nylon, steel and more). The “race track” or “sandwich” baffle obtained is clipped or welded in the body shop.
Key attributes Good sealing relies on many factors. We offer a complete line of sealants in customizable shapes, sizes and forms. In the curing oven of the OEM’s e-coat process, they will expand at different rates and volumes to fill hollow cavities. Expansion ranges from 0% to 2000%. We offer materials with differents densities and cell structures depending on body-in-white and closure applications, such as sealing, sound absorption and damping.