On 16/03/16 18:18, Tim Lamb wrote:

There's this stuff
http://www.winwood-products.com/eng/.../fire-retardan
t-plywood.htm

I have been considering that - not cheap. But Euroclass B seems to be
equivalent to painted plasterboard for ability to hold back a fire.

You can purchase paint on intumescent products but I don't know if they
do a clear lacquer or how child/pet friendly it might be.


I've also come across a link to one of those too - amazing stuff. Used
in Stately Homes:

http://envirograf.com/product/intume...-for-wood-etc/

Our builders *fireproofed* a supporting steel with 18mm pine board Hilti
gunned on. (20 years ago)