I have been thinkning to get back into the hobby for a while and start making rc planes and other projects

For non-rc project i really like to watch The King Of Random YT channel
And he just dropped this video


Seeing this i remembered that Engineer This , a show that used to come on ZeeQ also made something like this
But for base they were using something called Sunboard

And i was thinking what sunboard is . It seems to be a foamboard , a bit more rigid and stonger though

If anyone knows what its is , i would be very curious to know

ZeeQ official website is gone but Engineer This still has a facebook page
https://m.facebook.com/dgujhdseyy/

Compressed PVC foam. Not good for planes, but OK for boats

http://www.rcindia.org/boats/neptune-(scaled-up)-from-available-plans-in-sunboard/

http://www.rcindia.org/boats/110th-scale-baby-bootlegger/