Any suggestions on a better way of making/ hiding the joint.View attachment 37120
might be a little late, as you have already cut the vinyl, but you could have machine stitched the edge together.....then glue it down....
Cut one piece large enough to fold round the corner, but strip off the foam backing of this extra bit before sticking it down.
cut the second bit to fit tightly into the corner overlapping this strip.
Which bit laps round the corner and which bit overlaps it will depend on the angle you will view it..... Normally the side lining will lap around the corner and the bulkhead bit will overlap and fit tightly into the corner.
Think wallpapering techniques.... how you do the corners when wallpapering.
Sometimes in difficult situations its also possible to make a glued "hem" to hide a cut edge. Strip the backing off the egde 1/2" or so and fold the vinyl round under it.
Sealant in the corners is likely to look like the bodge of the century . I've tried piping but if it is not dead straight it looks as bad.
Thanks for the replies, If I've pick this up correctly I shoudl take the vinyl around the corner having firstly stripped of foam. Will apply the front piece folding it back on it's self to hide the raw edge, having first removed the foam. Is that correct?
When I did my corners I didn't find it necessary to fold the edge back on itself just used a sharp knife and cut the mitre joint on a piece of wood to get a nice clean cut joint. I would have thought if you fold it back on itself it will be really thick, and you might have a problem trying to get it to lie flat. But you must remove the foam to get rid of the thicknes, so its only a vynle to vynle joint. Impact adhesive and masking tape make for a clean corner once cut.
I would personaly fit the front one first then fit the side ones, that way you won't see the material edge on the joint when looking forward.
Will try this method, I had thought that the raw edge of the vinyl might look rough but am now reassured. I now have the the pleasant job of stripping off the old vinyl and glue to look forward too!
Just a thought, if you don't have foam backed vynle to remove just vynle, pull off gently and you might find that a lot of the adhesive comes off with the vynle being stuck to the back of it. You may be lucky, f not apply a little heat to the adhesive behind the vynle and you may find it softens the impact adhesive making it easier to remove.
Best of luck with it Philip
Sealant in the corners is likely to look like the bodge of the century .