Cheaper Spray on sound deadener recipe

I know this is an old post but I thought I would share my experience. Home brewed my lizard skin with some old paint I had and some mirco ballons that I purchased from a boating supplies store. It actually exceeded my expectations. I have a dodgy patch panel on one part of the floor that was installed by a previous owner. They should have run some beads through it but didn't. As a result it has always been 'tinny'. I did three coats and found that the patch panel has much less noise coming through when tapped and also it seems to have a lot less flex. There is noticeably less noise coming through the entire floor. This is the way to go if you want to save some money and are prepared to DIY.