I'd rather smash a screen to get a genuine seal thats intact than use a pattern one cos it'll lift in the corners as someone aboves experience seems to show.
With some other classic cars screens are still available but genuine rubbers aren't!!
If its going in easily I see no reason why not just cover it all in lots of the no setting sealant and just clean up afterwards.
I'd want to get some sealer around the frame before fitting the screen tho as squirting it in afterwards can't really be as effective.
If you're cleaning upo an old one what are you using as solvent? cos most solvents can have the effect of drying the rubber. If thats happening or you want to stop it cracking, best treat it with something like armor-all or similar??? Any one got any ideas I seem to remember someone saying to feed them with vegy oil to get them nice and supple?







