Best Insulation Material for Coolbox?

[richardm47]

Now that the weather is better, I've a job to do!

Is Aerogel a good material for adding insulation to our boat's coolbox? There is limited space to add insulation round the box, so high-performance material needed. I had first thought of fitting a semi-rigid flat panel like expanded polystyrene packaging, but it seems that isn't such a good insulator. Aerogel seems to be blanket-like, how would it be fixed?

What do people use? Any pointers appreciated for this job.

 

[greenalien]

Closed-cell foam, either in sheet form or as a 2-part mix is the usual material - I think 'proper' Aerogel may be a bit on the expensive side, and difficult to fasten as it's very fragile - but some of the new Aerogel Insulation Blanket material does look promising - have you obtained any prices yet?

 

[Even Chance]

Get some dow-corning wallmate/floormate. Its the blue foam you see for insulating walls/floors in houses. The blue is denser than the pink. Comes in all sorts of thicknesses. Much better than the white beaded stuff.

 

[john_morris_uk]

If expense is no problem vacuum panels are the very best. Custom made by only one company I could find. I warn you that they are pricy though. I ended up using Celotex type builders insulation material and have ended up with more if a freezer than a fridge if we don't watch the controls!

 

[John100156]

Sheet Armaflex

http://www.armacell.com/www/armacell/INETFAQ.nsf/vFrame1/CD493FAD5EF77ECE8025707C00437E3D

 

[bedouin]

Sheet Armaflex

http://www.armacell.com/www/armacell/INETFAQ.nsf/vFrame1/CD493FAD5EF77ECE8025707C00437E3D

Looks fairly good - but not as good an insulator as "celotex" type products - and well below that of aerogel. However it seems to be more flexible than celotex so that is a clear advantage.

 

[Ross D]

If space is a problem you could use some of the foil laminate membranes that are used for insulating roof spaces etc.

 

[grumpy_o_g]

If expense is no problem vacuum panels are the very best. Custom made by only one company I could find. I warn you that they are pricy though. I ended up using Celotex type builders insulation material and have ended up with more if a freezer than a fridge if we don't watch the controls!

Would that be Glacier Bay? If so, expensive is an understatement!!