A molded urethane backing plate for excellent flexibility and balance.
These Dual-Action Flexible Backing Plates
minimize heat transfer, flexes to hug your vehicle's curves, and are built to last. And they are the best backing plates you can buy for the Porter Cable 7424 Or Porter Cable 7336 Dual-Action Polishers
Molded Urethane is where it's at. This material is flexible yet incredibly durable. This plate will last through countless, rigorous uses without falling apart or becoming unbalanced. Balancing is essential when it comes to polishers because an unbalanced plate will bounce, leaving an uneven finish. The reinforced inner construction uses steel struts molded into the center hub to give the plate stability and maintain an even surface for your pad.
Another benefit of urethane is its resistance to heat. The Flex Backing Plate minimizes the transfer of heat from the motor to the paint to prevent burning.
Spontaneous heat build-up is also reduced. Remove and replace pads easily from the hook & loop surface. The hook & loop is molded into the plate so it will not come off.