Head liner help?

3M 45 General Use Spray Adhesive or possibly 70, but you really need to use caution with 70 as it's a "hot" glue and can melt some foams due to the chemical reaction it has with them. Can be found most anywhere.

K-Grip is another good product. Found in specialty stores, upholstery stores, etc.

Performance High Temp would probably be my first choice.
http://www.yourautotrim.com/perhittrimad.html

If it continues to sag / fall, then I'd look at replacing the foam. However that's usually a larger task than "spray and stick".

Hi Venturer, Once the foam gets brittle theres no way out......Except outer support, how about thin strips of the same wood of surrounding trim? Plan C is thumbtacks

Any adhesive You use in quanity, will simply attack the petrolleum based headliner itself.

Any pics? Kiwi

You can try a spray adhesive, but you may be fighting an uphill battle.

As a 20 year upholsterer, I have done my share of auto and marine headliners. I can tell you...for a fact...that there is nothing you can apply that will repair your headliner. If you want to wait until the off-season to do the repair properly, the use whatever method you can for now to tie you over.

Call a local upholstery shop and they can make you small (#22) buttons of a matcning material that have small nails in them. Get 20 or so and place them uniformly in the cabin headliner as a decoration. This will (for the time being) keep you from looking at the sagging portion.

If you decide to tackle the problem your self later, send me a personl message and I can get you links for the supply house so at least you will get a break on the material costs.

You're going to have to end up replacing it all or you'll just keep having problems as the foam degradation continues to spread. It's the sad reality of glued on foam backed liners. Depending on the type of foam and glue, the conditions the boat sees and is stored in, it'll last between 5 and 20 years, but once it starts failing apart, there's nothing to really do except bite the bullet and replace it or do some repair that will give you the result of a tufted interior.

I need to change all the headliners in my Hatteras 80. Any reference in Fort Lauderdale area?

Ralph..are you new here?
Rules man,,rules..