1 Scope
This British Standard specifies requirements for the materials and performance of a water‑resistant, two pack pretreatment etch primer for aerospace applications, including specific reference to the use of two Chromium (VI) substances (see 4.1.2 ).
The pretreatment etch primer is for use on metallic substrates to provide adhesion for an anti-corrosive primer and finishing scheme.
Information on application for type approval is provided in Annex A.