Hmmm.... For a small job I would definitly not bother even trying to get these specialty products, which are most probably going to be very difficult to get except in specialized industrial outlets big cities.Not saying what 83BJ60 says is wrong but there are special products to repair f.i. plastic (ABS) bumpers.
Think it's less complicated doing a repair with that kind of stuff.
Amongst others, 3M has those kind of products. As an example look here
I have had lots of experience gluing, cutting and shaping ABS, scraps of which can be easily acquired from anyone working in construction. I have made ABS battery trays for my old BJ60n when the OEMs would rust through after only 6 years. ABS glues to itself extremely well by actually melting, makes a very, very tough repair that cannot be taken apart. ABS is rigid at normal temperatures but becomes pliable at 300 defrees fahrenheit so it's easy to bend after putting in an oven or using a temperature controlled air gun on it for 20 minutes. It's easy to get and easy to work with with little extra expense in materials and tools.
As for gluing, if lacquer thinner was not so easily available everywhere instead of ABS glue, I would have said to use ABS glue as a base for the ABS paste, it's stronger, but it's also very yellow and so wouldn't make a nice repair. Lacquer thinner on the other hand is transparent. The only problem with just using thinner is that it makes a very poor glue as it evaporates before having sufficient time to fuse the ABS. Making an ABS "paste" solves that problem. The active solvent in lacquer thinner is toluene, and it easily disolves the S in ABS (Styrene).
Anyway, I'm just saying that ABS is easy to work with using commonly available, generic materials.
PS Kudos for the moderators for so quickly removing the spam post