Royalex
If it's not torn, just creased and twisted, heat will do wonders. Leave it
in the sun during summer, and it will help a lot. Also heat gun will help.
Don;t get it too hot... Heat and time are best. If it's torn, sanding thru
the vynal a fiberglassing with epoxy will help. Don't make to patch too
thick, as it has to flex with the plastic.
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