Hi,

I'm expecting some negative responses here.....but..... I've been thinking of widening an 2003 75L Evo Starboard board in a similar way to what was done by someone else on this forum and was after some advice.

This is the previous conversion I saw:






30mm x 2 inserts of foam I have roughly calculated will increase the volume by about 12.5 L = 87.5L board and width from 56cm to 62cm

50mm x 2 inserts of foam I have roughly calculated will increase the volume by about 20 L = 95L board and width from 56cm to 66cm


My Questions:

Foam- Bunnings sell insulation XPS FOAM, would this be ok to use?








Air movement in the board.
By cutting, inserting the foam and gluing it in place is there any issue that this creates three chambers within the board and air pressure can't be released between them to the bung ?

Any comments or advice?

Thanks
Rob