English to Russian Tech/Engineering Engineering (general)

Инструкции по покраске

In case that the steel plate gets damaged as well, the burned out areas of paint must be ground off (repaired) by sand paper to archive St3 cleanliness and be made up to designed dry film thickness with primer coat and then the top coats should be re-applied

Во фразе "archive St3 cleanliness" затрудняет "archive".

Спасибо.