Re: Stewart's 1955 Packard 400

Posted by HH56 On 2020/8/13 18:31:45

I am not sure the spray on bedliner is all that great either for a sound absorbing material or for insulation. I used some in the trunk of the 47 under the flocking and it is actually a bit thin and needs several coats to get a decent buildup. I used a sound and heat absorbing product inside the car that was made specifically for auto use. It is similar to the thin mylar reflective material you get at the home center for attic insulation but was not that impressed with it either. Might be good for temperature but I doubt it will be very good for sound.

Several have used one of the Dynamat butyl pad configurations with good results but for a large area such as the floor and roof the stuff is expensive.

Ross mentioned a product available from Amazon that is similar to the Dynamat. He uses it quite often and it is less expensive than Dynamat. There are several versions with some having both good insulation and sound qualities.https://packardinfo.com/xoops/html/modules/newbb/viewtopic.php?post_id=193652#forumpost193652