Window channels are industrial rubber products that help secure window frames to vehicle bodies and hold window glass in place. These extrusions eliminate rattling while providing protection against dust, rust, moisture, and drafts. Rubber window channels may include beaded and unbeaded products with or without stainless steel beads. Rubber channels can also include flocked or coated linings.
Window Channel Selection
When choosing window channels, verify the minimum bend radius required in the corners. Otherwise, problems may occur if the profile is too soft in a tight radius. Custom-fabricated window channels save time on your assembly line because they arrive ready-to-install with hand tools and lubrication.
In addition to product weight and physical dimensions, specifications for windows channels include shape, material, and durometer (duro). Choices for shape include locking channel, self-locking channel, glazing seal, and zipper strip. EPDM rubber is the most common material used. Durometer, a measure of hardness, typically ranges from 50 to 80 duro (Shore A) for rubber window channels.
Remember to identify application requirements such as seal color and glass width. Original equipment manufacturers (OEMs) publish this information along with product specifications for parts such as window seals. In addition to the vehicle or equipment make and model, consider window type (sliding or rolling) and position (front, side or rear).
Window Channel Applications
Windows channels are designed for use with mobile equipment that contain specific types of window glass. These rubber products seal out wind and weather while reducing or eliminating noise and vibration. Window channels also help to protect interiors while ensuring operator comfort and safety.
When selecting rubber products for vehicles such as skidders and logging equipment, consider regulatory requirements and custom specifications for roll-over protection structures (ROPS). Windows channels for military vehicles perform similar functions but may have different application requirements. For example, the window channels used in armored personnel carriers must be able to hold and secure window glass in the event of nearby explosions with significant blast waves and vibrations.
Rubber windows channels are also used on buses and in the rail industry, including passenger cars and high-speed trains. Depending on the application, you may need to select rubber compounds that meet Bombardier SMP 800-C or other fire, smoke, and toxicity requirements (FST).