Not on team but for what its worth.
If you use silicon sealent. (bathroom type is fine) it will be very seure but you will still be able to remove at a later date.(If removing pull /tear carefully cutting silicon with sharp blade.Clean remaining silicon off board with a rag dipped in petrol.(petrol attacks silicon sealent but not board/ epoxy/glass fibre.Might dissolve foam though so take care)
(Found clear to have better adhesive properties)
I wouldn`t use anything which gave permanent fix.