The material is 100% Polycarbonate (PC) from 5-gallon PC water bottles. Labels are removed before crushing. There are no caps or other plastic materials intentionally mixed with the flakes. Contamination: The material is clean and high quality, with no significant contamination. We carefully sort the bottles before crushing to minimize any foreign materials. Available Quantity: We currently have multiple loads available, and we can discuss the available quantity according to your required volume and shipment schedule.