Unique Polyurethane blade design can apply pressure at an aggressive angle without the belt is in danger of ripping. The scraped surface into a plane can effectively remove residual and stick materials on the belt. The material maintains its resiliency even when it goes up against UV rays, chemicals, or dirt. Polyurethane blades are durable and lasting. You might have a different aluminum shape, blade shape, no worries, just send us your drawings, we will produce them for you.