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​Providing water-blocking systems for automotive wire harness feed-through locations.

Shawcor understands that sealing wire bundles against water and environmental factors like noise and vapors is important to our customers. We have developed a group of products and techniques to seal these critical areas between the wires of large bundles, preventing capillary action of water climbing the harness and entering the vehicle interior. No matter the size of your bundle, Shawcor can help give you the tools, materials and know-how to completely seal your firewall, door, headlight and body harnesses from water intrusion.


A product preview image for Shawcor's DERAY®–ColdMelt I 105°C

DERAY®–ColdMelt I 105°C

DERAY®-Coldmelt is the ultimate water-blocking system for automotive wire harness feed-through locations. This specially designed heat shrink tube, mastic strip and shrink equipment system ensures 100% sealing performance. It also reduces total installed cost by eliminating drip loops.


A product preview image for Shawcor's DERAY®-Autoseal


An automatic sealing system for automotive electrical systems, DERAY®-Autoseal consists of a superabsorbent polymer, integrated in cellulose or a similar material, which is able to absorb up to 300 times its own weight in water, depending on its concentration and granulation.

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Automotive Catalog - for EMAR

Automotive Catalog - for EMAR

Download our Automotive Catalog for the EMAR region here!

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