White KAPA line foamboard.
Various sheet sizes available (see drop down box).
There are various different types of 'Kapa' brand foamboard.
Most of them differ from regular foamboard in that the paper covering can be carefully peeled off to use the soft foam layer beneath.
This foam layer can be easily inscribed, carved, sanded, embossed or generally 'broken down'.
Kapa-line is the best to use for this purpose.
See our guide to 'Creating surfaces with Kapa-line foamboard' by David Neat on our Modelmaking Guides page.