Yes there is a product that will work. I used these products on my home fridge with very good results.
Whirlpool makes a repair kit for fridge liners. P/N 482395 for cracks. It's actually a special tape with adhesive on it. Then they sell an electrical grade silicone sealant P/N 482338 for holes.
To use the tape for the repair you must drill a small hole at each end of the crack so it does not travel any further then apply the tape.
I used it a few years ago, both products part numbers I mentioned are bright white. You could check for other shades or colors available for what you need.
I bought the items at FSB Appliance Care, 2801 Airwest Blvd., Plainfield, IN 46168
This stuff was a little pricey for what you get but, it does work on fridge liners.
Maybe Dometic has similar products for repairs.