It s made with modified expanded polystyrene.
Garage door isolator.
The garage door opener noise reduction kit stops the vibrations from going to room above.
The liftmaster garage door opener vibration isolator kit 89lm is easy to install and mount between the garage door openers motor head mechanism and the support brackets.
I also added extra vibration isolation on the garage door opener bracing where it meets the ceiling using rubber cork anti isolation pads.
The benefits include permanent r value inherent water resistance excellent physical strength and dimensional stability.
They remove vibration from the garage door opener.
It works with all overhead types of garage door opener that are bolted to support brackets.
For great long term performance select the garage door insulation kit from cellofoam north america inc.
The garage door silencer provides sound isolation when a garage door opens or closes.
Product testing information product specs installation instructions.
It s not a tough job though.
A rigid foamed plastic with resilient closed cells.