At least I think that's what it was called - I haven't got the wrapper now..
It is made of polystyrene covered with paper and looks great. I put it up usin their own adhesive and filled any tiny gaps with polyfilla.
I got a crick in the neck doing a perfect job. Not a crack to be seen.
I emulsioned it a tasteful shade, put the furniture back and admired the result. I know self praise is no praise but I was proud of it.
After a number of days tiny cracks appeared at the junction with either the ceiling or wall and at the joints in its length although not (surprisingly) at my beautifully mitred corners.
I am VERY UPSET as I will have to go round and refill all gaps which is a dusty job at the best of times and I thought I had finished :( .
I can only think that the drying paint created a tension in the paper which was sufficient to shorten each 6' length by about 0.5mm and to pull it away from either the ceiling or wall along the length depending on which bond was the stronger.
What are other peoples' experiences?
Any tips?