First, ground rubber is lighter than the sand or quartz mix you will find in other liners, so it stays suspended in the bed liner through the application process so that you don't have to constantly remix your liner to keep it consistent. Al's Liner is a true DIY product and the rubber crumb additive is key to ensuring ease of application when you need that extra protection.
Second, sand and quartz can be very abrasive. If you've
worked on a boat deck or trailer floor that was coated with a different
liner, you probably know the frustration of scraped knees and knuckles
that comes with these substances. These abrasive materials can put
scratches in other materials and tears in your skin, while at the same
time wearing down easily with repeated use. The Al's Liner Rubber Crumb
Additive is a soft material that will not scuff your skin or your tools
upon contact. It provides long lasting traction and protection and is
derived from recycled tires. Just another way Al's Liner maintains an
environmentally friendly approach to supplying truck bed liners.
The Al's Liner Rubber Crumb is only available in black.