We use this type of diamond coated pad, they past ages, 200g is good for glass used in framing or window glazing.
Just google diamond pad glass seamer.
A swipe up and back, reverse the process so you get a swipe each way on each side, turn and repeat 4 x (or around if doing a circle or oval, portrait glass, etc)
The best parts about edging glass for picture framing ?
It's safer for handling, right through from cutting to fitting and replacing if ever needed.
The dulled edges will not shave lightly in the back of the rebate with movement, and the glass will move slightly in the frame over years of moving etc.
Glass is less prone to breakage ! Unseamed glass will break easier if impacted, a seamed edge is stronger because any little inconsistencies of a raw edge are taken off.
@Shayla I'm REALLY surprised to see you using that seamer.
It's made for more heavy duty glass work, usually 3mm and up to around 6mm.
I would have thought it too course to do a fine job on picture framing glass, but hey, if it's working for you
