scope:

This specification relates to three classes of stoving varnish for use on steel ammunition stores. The steel should normally be pretreated in accordance with DEF STAN 03-11.

The varnish will provide a smooth, durable finish for filled or unfilled stores when cured at a temperature not exceeding 140 ± 5°C for 1 hour. Other curing schedules m y be permitted by the Quality Assurance Authority subject to satisfactory clearance of explosives compatibility.

The three classes of varnish are interchangeable in use, but must not be mixed, either as liquid varnishes or as applied films.

This specification supersedes TS 10213 dated 2 April 1980 and is an alternative to CS 1844 dated October 1943.

The designation 'Type QX' indicates that the material is of a quality suitable for certain applications where a high degree of compatibility with explosives is a requirement. However, its compatibility with all explosives in all environments has not been established and Design Authorities should seek advice on particular applications from the Director, Propellants Explosives and Rocket Motor Establishment, Waltham Abbey, Essex.