Garter Blue, Humbrol Rail Colour RC-404, 14ml Tinlet. Humbrol AB2404 Garter Blue, is a water-based acrylic model railway colour paint. The popular railway colours modelling paints, from the acrylic range by Humbrol Paints was developed to match many popular UK railway colours, the rail colours will enable you to put many finishing touches to your model railway for example it could be weather effects or touch ups. Humbrol RC404 Garter Blue is a water-based Acrylic paint with a Matt finish. Humbrol Rail Colours modellers paint, developed for use on plastic model kits but which can also be used on a wide range of surfaces including most plastics, wood, glass, ceramics, metal, cardboard, sealed plaster, sealed hardboard and more (always check on a small test area to check suitability). APPLICATION: Brush straight from the tin or Airbrush with a suitable thinner such as water. Two thin coats are preferable to one thick coat. The usual thinning ratio is 2 parts paint to one part water. Humbrol have been producing superior quality paints for over 50 years. With a range of over 151 colours you can put the finishing touches to your slot car model kit, railway model kit, aircraft model kit, Boat and Ship model kits, and figures to name but a few. In recent years the brand has been acquired alongside Airfix by Hornby Hobbies Ltd. Humbrol offers a wide variety of products such as Acrylic Paints and Varnishes with a variety of finishes such as Matt, Gloss, Satin, Metallic, Metalcote and Clear. Along with accessories such as Brushes, Coatings and Thinners, Adhesives and Fillers, Airbrushes, Air Clay and Modelling Tools. Humbrol 14ml Acrylic Rail Colour Paint Tinlet No RC404 Garter Blue. Humbrol AB2404.