My mom when driving the otherday ended up hitting a deer that had been ran over altedy but not dead so it ended up being good outting it out of its misery. When it happened it cracked the bumper not bad but still a crack I was wondering that would be the best thing to seal the crack to keep it from getting worse.

5 minute epoxy will work but will look off'. Check at autozone or simillar for a plastic repair kit, Canadian Tire has them up here.

then touch up paint