Coverbond 4™ is a thick, premium all-weather fabric used by Coverking for our premium level universal car covers and mid level custom car covers. This material is made in Taiwan. The technical name of this material is Spunbond Polyester laminated to 2 layers of Meltblown Polypropylene laminated to Spunbond Polyester. The specification Coverking uses for Coverbond 4™ is far superior to other 4 layer car cover materials available.
Coverking uses spunbond polyester for both outer layers. Most competitors use spunbond polypropylene. Polyropylene is inherently less UV resistant and is more likely to degrade with exposure to UV rays emitted from the sun. Coverking also adds additional UV retardant, which ensures even longer stability in the sun. Finally, Coverking insists on the heaviest inner and outer layer materials. Most other companies use materials about 15% lighter than Coverking.
Coverking uses wax coated thread in overlapped, double stitched seams. The wax coating expands in the pierced hole created during the stitching process, to help cover the hole. Once again, some competitors take the cheaper route by using an ultra-sonic welding of the material instead of sewing. This process is far cheaper, because it melts the fabric layers together. It also doesn't use any thread. Unfortunately, the area melted together becomes very hard and examples of scratching the vehicle surface are not uncommon.
Coverking offers a 1 year repair or replace warranty on universal and 2 years on custom Coverbond 4™ covers.
CARE and CLEANING
Coverbond 4™ can be easily cleaned by washing while on a vehicle. Use common carwash detergent, and air dry.