Foam insulation

[Hadenough]

Been using some of that double sided (adhesive) closed cell foam insulation from Hawke House. Be warned, it doesn't stick very well. Put mine on clean, smooth, abraded and acetoned gel coat about three months ago. Devil to get some of it to stick well in the first place but it did stick. Now, just when we need it it is coming off, not completely but enough to gap create voids that form condensation behind. I remember that the areas lifting are the same as those that were difficult to stick and yes I am sure that the substrate was properly prepared. So the spray adhesive will be out tomorrow. Think I'll use single sided and contact adhesive in future.

 

[nigelmercier]

Have you told them? They were quite pleased with this product when I was there.

 

[Hadenough]

I will be but my priority at the moment is getting it back on! Yes, I had the hard sell of it too when I went in for some single sided. My view is that the application of the second side is not as good as the single sided. I have areas where the finish covering is lifting but the foam remains stuck. Depending possibly which of the two sides you have used "underneath".

 

[theguerns]

HI Folks. I have used a closed cell foam to insulate a couple of yachts for clients and always use HT Spray adhesive. I learned this lesson from trying the self adhesive foam and later having to re do the job at my expense (well you can not charge the client if you get it wrong can you) I have has a lot of success with the spray stuff and none has come off so far. One thing I would point out to you all is never use acetone to clean, use epoxy solvent as the first has some oil residue in it and the second has none. I had a chap that cleaned a couple of joints to be sealed yet again and saw him using acetone. I cleaned the joing for him with epoxy solvent then applied CT1 sealant and after 2 years still NO leak. Hope this helps you all.

 

[Kelpie]

I'm about to insulate my forecabin using camping mats... I'm worried about not getting them to stick properly. A few years ago I tried to attach velcro tabs for holding the curtains tight against the windows. Despite using 80 grit to roughen the surface, then a wipe with acetone, the self-adhesive tabs all came off again within a few days. So I will try epoxy solvent instead.

The other day I was sticking bubblewrap onto the deckhead to reduce condensation. I ended up using string. There is something magic in that fibreglass... I put on a piece of sellotape and watched it peel itself off and fall to the floor, unable to even stick its own weight on. This was after drying the surface with a towel but no other preparation. How does the fibreglass manage to be so resistant to adhesion??

 

[xeitosaphil]

It could be that when you are inside the cabin you are actually creating heat, and the cold fibre glass is acquiring a film of condensation on it which will prohibit a good adhesion?

Only a thought.