I have just stripped the fore cabin of my Parker 275 of all the old lining material. A horrible job especially with dust face mask on which I am told is essential to stop inhaling the debris.
I just used a scrapper, wire brush and hoover. I got most off but by no means all of it. I am now relining with a side liner product from Kayospruce and a spray glue. This looks superb and transforms the fore cabin. Be aware of glue fumes. I set up a large fan in the companion way and opened the hatch. It warns you on the tin not to do it yourself in case you get overcome. I will use five tins of spray glue when finished and I think it was 6 x 2 metres of sidelining. I used the old lining as a template to transfer to building polythene so that the new sidelining did not get dirty.
The fumes are certainly pretty strong but worth it in the end.