Im working on a 3-point hydro and has a canvas deck it a good +30 years old and started to turn brown from dust, it has seen 3 thing, stuff you use to make the fabric tighter after you put it on, water (with no paint) and lots of dust.
The photo of the boat going by was a good +30 years ago (no paint)
https://streamable.com/ot3bw5
And the one that the boat is upside down it the deck now
https://streamable.com/w3nml4
And the rest are what it looked like +30 years ago and now (sorry for all the links)
https://streamable.com/lpnmrv
https://streamable.com/n6msnk
https://streamable.com/m24fc4
https://streamable.com/5mebxh
https://streamable.com/t14i17
https://streamable.com/bb84di
https://streamable.com/mzy3oj
https://streamable.com/v4hsye