IS 5666-1970 PDF

Scope: 1.1 This standard prescribes the requirements and the methods of sampling and test for etch ( pretreatment) primer, suitable for air drying, or force drying, for use on clean metal surfaces of all types as a treatment prior to application of the coating system, 1.1.1 The material is intended to improve adhesion of the next applied coat of paint. Though it possesses corrosion inhibiting properties, it is not intended as a permanent protective coating by itself. Note — The material is supplied as two separate components consisting of the base and accelerator to be mixed together before use in the proportions specified. The mixed material should retain its properties for a period of 8 hours from the time of mixing, and any unused material should be discarded at the end of this period.

IS 5666-1970 history