Why Should Vibration Damping Sheets Be Applied in Strips?
2 Answers
Applying vibration damping sheets in strips can achieve better noise reduction effects. Here are the specific details about vibration damping sheets: 1. Installation Method: First, remove the four door panels and clean any dirt inside. Then, apply the vibration damping sheets on the metal layer and press them firmly. Cover with a layer of sound insulation cotton, and apply the vibration damping sheets in full sheets on the panel layer. The door panels can be covered with sound insulation cotton, or it can also be applied on the panel layer. Finally, reinstall the four door panels. 2. Function: The purpose of vibration damping sheets is to eliminate low-frequency vibrations caused by the metal sheets during idling or driving, which lead to low-frequency noise bands. The sound insulation cotton functions to absorb medium and high-frequency noise bands generated externally or internally during vehicle operation.
In car soundproofing modifications, I've encountered the question of why damping sheets need to be applied strip by strip. Actually, this is mainly to ensure uniform adhesion and firmness. The vehicle body surface isn't perfectly flat, often having uneven areas. If you apply a whole piece at once, it's prone to wrinkles, air bubbles, or poorly adhered sections, which can actually increase noise or even cause material delamination. From my personal experience, the strip application method allows each small segment to be firmly pressed by the roller, squeezing out air for tighter adhesion. It also accounts for the material's thermal expansion properties - when steel panels expand in summer heat, strip-form damping sheets can flexibly accommodate movement, preventing cracks or detachment. Additionally, this method saves material as you can cut pieces to precisely fit doors or chassis, reducing waste. Overall, it enhances both sound insulation effectiveness and durability - a point I always emphasize when helping friends with modifications.
