Custom Coat Blood Red 1 Gallon Urethane Spray-On Truck Bed Liner Kit with Spray Gun and Regulator - Easy Mixing, Shake, Shoot It - Durable Textured Protective Coating, Prevent Rust - Car, Auto

If you go by the directions of adding 250 ml of hardener and then the tint there is barely enough room to do any shaking of the bottle. Just put everything in a bucket and stir it really good. So far I like the results.