"Extremely good. I have used this on older wooden windows where their shape has gone slightly over the years. It fills the gap perfectly and cuts out all the draughts that where coming through. I would recommended that you buy both the P and E versions of this to cover different sized gaps. I plane to use this on internal doors also, to get nice tight fittings.
Once on, the finish looks very professional and 100 times better than the foam type seals you can buy. It's uses are endless really as it works well as a cushion too. It's the same stuff that's used on a well known hand made computer case too.
The only cons are that it comes only in White or Brown. Grey and Black would be good too."
"Bought this to seal a bathroom extractor fan against the inside wall. It did the job perfectly looked neat and soft enough to accomodate a slight angled gap, i.e. narrow at top and wide at bottom. Easy to cut. Adhesive is quite good but not that strong and also quite narrow (not across whole width)."