I use Devcon 5-minute epoxy which comes in two parts and it is great as it dries clear and bonds strong. I also like it as I can glue wires, guitar string, and different material to plastic. I've been using it for years and sure it's a bit pricey and there's a lot of waste, but when I take my models to a club meeting, contest, or model show, I don't have to bring a repair kit.