Super long shot I know. I need the fridge door shelf (one that goes next under the butter keeper, holds milk etc, not the two lowest down) the most but also could use a couple of the freezer door shelves too. Parts are no longer available, this kind of plastic is hard to find glue for and the cracked parts are all load bearing.
If you're at all handy - or know someone who is - you can build / re-build stuff with a combination of Spectra and Epoxy.
Spectra is a (stronger-than-steel) fibre that is easily bought at a Burnsco / marine chandler. It comes in the form of rope - sold by the metre - in diameters from 2mm up to large diameter rope. Great stuff for sailing, camping - just as zero-stretch rope.
The magic comes when you saturate it with epoxy and let it cure - formed into a shape you want. You get super strength locked into a very strong matrix.... a bit like reinforced concrete, but way stronger and lighter.
I've used this trick in boatbuilding and in repairing lots of difficult shapes: split tentpoles, a cast-iron bandsaw frame, putting a key-ring loop on a USB stick.
It's lightweight, strong as, doesn't rust, fatigue or degrade.
So, for a fridge shelf, you could shape some thin 2mm or 3mm spectra to match the broken-off load-bearing bits and then extend the spectra like a spider web onto the shelf. Saturate with a nice 'runny' epoxy resin (not fiberglass resin) and let it cure. You'll be able to swing from it ;-)
Make sure to buy a nice yellow, red, green - whatever - spectra, to match your fridge decor ;-)
If you're going to 'mould' it in-situ (in the door of the fridge) remember to put a generous layer of olive oil (or a thin layer of petroleum jelly) anywhere you will want to be able to separate the strengthened/repaired shelf from the fridge door. Epoxy doesn't stick well to grease !
For anyone thinking this might be useful in another 'job'... there's one limitation. Don't use epoxy if it'll get really hot. Some boat-building epoxies soften up above 50 or 60 C. That's risky even for a black-painted hull in NZ sunshine. I know there are epoxies used by the aircraft guys that go way up in temp - but I've never had to use them.
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