The pictures would be great and I will forward them to my representative.
On the "mass backing" the description is as follows:
"Our Mass Back is made of 40mil thick Ethylene vinyl acetate which gives the carpet a dense rubber backing to reduce heat and noise within your vehicle. The Mass Back is applied to the back of the carpet and then molded to the correct shape. This Mass Back carpet more closely duplicates the original factory materials for many later model OEM carpets. Because this is an upgraded product, there is a surcharge for this backing, as well as additional shipping costs. In most cases jute padding will be included with the carpet, and may or may not be attached to the bottom of the carpet made with Mass Back, depending on the application."
The original carpet backing was a product made from horse hair. Needless to say, that is no longer available. The regular padding is now known as "shoddy padding" and is a man made fiber material. It is not as thick as the original backing and I know some shops who purchase the shoddy padding to help with the contours of the floor boards. I know with the mass backing, some still use the shoddy padding as well for the contour forming.
The mass backing is much heavier and more difficult to cut. That is the only complaint that we have had with the product.
