IS 5666 : 1970 Specification for Etch (Pretreatment) Primer

1 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.

2 References

IS 2 : 1960 Rules for rounding of numerical values

IS 51 : 1966 Specification for zinc chrome for paints

IS 66 : 1950 Specification for asbestine for paints

IS 101 : 1964 Methods of test for ready mixed paints and enamels

IS 324 : 1959 Specification for ordinary denatured spirit

IS 361 : 1962 Specification for n-butyl alcohol, technical

IS 798 : 1968 Specification for orthophosphoric acid

IS 1303 : 1963 Glossary of terms relating to paints

IS 2631 : 1964 Specification for isopropyl alcohol