This British Standard specifies requirements for hot-applied coal-tar-based materials, reinforced with inert non-fibrous fillers, which are used to protect iron and steel against corrosion. Requirements for a primer are included because the performance of hot-applied coating materials depends on its use.
Different grades of material are used for different substrates, conditions of application and service. This standard indicates factors that need to be taken into account in selecting the grade for a particular use.
BS 4164:2002 history
2002BS 4164:2002 Specification for coal-tar-based hot-applied coating materials for protecting iron and steel, including a suitable primer