QuietCoolOne

Check out the thread reply to Soulman07.

Soulman07 - Thickness is not relative to performance in these materials. Weight per square foot is. In the butyl/aluminum category - most of the brands out there are in 0.35-0.45 range in weight per square foot. HushMat Ultra foil backed damping is 0.52 pounds per square foot. 16% more material (& performance) per square foot is what you are paying for. More material per square - means less double layering and lower installed cost. Average size trunk - mid size car - 20 square feet large size car - 28-30 square feet. I hope this helps! Quiet Cool One

Characteristics of an Effective Damping Material – Make sure you examine beyond the $ per square foot. All members: [b]1. Mass [/b]– The physical science of damping requires mass over area. The greater the mass (weight per square foot) equals better performance. Focus treatment on the center of the unsupported sheet metal panels and work toward the outer edges (where the panels are welded to the structure of the vehicle. Too many products are “marketed” as effective damping materials at .20-.45 pounds per square foot. There are diminishing returns in double/triple layering the material. For example you do not get 2X the damping performance by adding a second layer. 2. Chemistry – The material must be formulated using materials to provide excellent flexibility at high and low temperature. Asphalt, acrylic and plastic resins are very poor chemistries at any temperature above 60 degrees. These materials change in composition and crack/flake over time. They also exhibit very poor adhesion characteristics. The flexibility of the material is critical given the uneven surfaces in the automobile. Ribbed floors, door frames, tunnels to mention a few. Trunk lids are all uneven surfaces that require a flexible material to adhere to the bottom surfaces in the channels. If the material bridges and does not get good adhesion/contact with the channels you will not receive the maximum benefit of the materal. Rigid materials require heat guns to create minimal flexibility and then they cut the day lights out of your hands. 3. Adhesion – The material must adhere (and stay adhered) to the vehicle for the life of the car. This is an area that many of the “marketeers” fail. How many times do you hear about taking off a door panel after a year and find the damping material sitting at the bottom of the door frame? The damping material must remain adhered to 100% of the surface to perform. If you ever have any questions don't hesitate to contact us [email protected]

Characteristics of an Effective Damping Material – Make sure you examine beyond the $ per square foot. All members: [b]1. Mass [/b]– The physical science of damping requires mass over area. The greater the mass (weight per square foot) equals better performance. Focus treatment on the center of the unsupported sheet metal panels and work toward the outer edges (where the panels are welded to the structure of the vehicle. Too many products are “marketed” as effective damping materials at .20-.45 pounds per square foot. There are diminishing returns in double/triple layering the material. For example you do not get 2X the damping performance by adding a second layer. 2. Chemistry – The material must be formulated using materials to provide excellent flexibility at high and low temperature. Asphalt, acrylic and plastic resins are very poor chemistries at any temperature above 60 degrees. These materials change in composition and crack/flake over time. They also exhibit very poor adhesion characteristics. The flexibility of the material is critical given the uneven surfaces in the automobile. Ribbed floors, door frames, tunnels to mention a few. Trunk lids are all uneven surfaces that require a flexible material to adhere to the bottom surfaces in the channels. If the material bridges and does not get good adhesion/contact with the channels you will not receive the maximum benefit of the materal. Rigid materials require heat guns to create minimal flexibility and then they cut the day lights out of your hands. 3. Adhesion – The material must adhere (and stay adhered) to the vehicle for the life of the car. This is an area that many of the “marketeers” fail. How many times do you hear about taking off a door panel after a year and find the damping material sitting at the bottom of the door frame? The damping material must remain adhered to 100% of the surface to perform. If you ever have any questions don't hesitate to contact us [email protected]