10th June 2022 When do I install the BR04 crash rail? We recommend installing the bump rails at the very last stage of the project. It will be easier as that way the painter does not have to deal with covering up the bump rails or accidentally splattering them with paint. Any minor mistakes that could be made with screws or missing studs would be hidden by the secret fix baton. If the product gets damaged, we have a warranty although this does not cover general wear and tear. If the damage is minor, we would coat over or replace the length if required. The paint we recommend using is the Cabots Cabothane clear water base which you can get from your local hardware store.