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Performance & Hotrod Business - December '14

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50 n Performance & Hotrod Business n December 2014 HOTROD mils per coat. These thicknesses are impor- tant to hit: 40 mils is the minimum and that's only as thick as two dimes pressed together. You can be thicker; that's OK. "Next, it's a water-based coating. Making sure it's dry to the touch in between coats is very important," he con- tinues. "Lastly it's surface prep. Make sure there is no bare metal and you have a good automotive primer. If the primer is less than seven days old there is no scuffing required. Over that, please scuff it well. The surface should have no rust, oil or grease. Try to remove any old factory undercoating and have a dry surface." Yoxtheimer points out, "A common mistake when installing sound deadener is not using the appropriate tool. It is imper- ative to install the self-adhesive material by using a mat roller to ensure good, uniform adhesion by eliminating any air pockets or bubbles." Zenone says it's about using the correct product and cautions against relying on vibration-damping material alone to keep a vehicle's interior cool and quiet. Whitaker agrees, adding "the biggest misconception is the use of reflective materials as insulation in a vehicle. Light- reflecting materials do reflect radiant energy. But as soon as you cover them with carpet, fabric and door panels, they are doing nearly nothing. Reflecting bubbles are not an actual automotive material." When it comes to his product, "You can't really make a mistake installing DynaMat. Some is good and more is bet- ter. Failure to remove any dirt or loose material could cause adhesion failure, but DynaMat has such an aggressive tack that it will overcome even rough surfaces." Shortcuts? What about shortcuts for installation? Are there any that really work? Heatshield's VP, Steve Heye, says, "If you want it done right, there are very few shortcuts. Sound-related issues should be controlled with a sound-control product. Thermal problems should be controlled with a thermal insulation product. For shortcuts, we recommend one layer of our db Armor, due to its sound damping Boom Mat Under Carpet Lite (UC Lite) installed over vibration damping material provides additional ther- mal insulation. (Photo courtesy DEI/Boom Mat) Infrared imaging illustrates temperature differentials as a result of applied thermal insulation. (Photo courtesy Heatshield Products Inc.) (Photo courtesy DynaMat)

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