M60 Master – Crown Paints Master M60 Specification – M60 Master
490 Previously coated steel 1. Defective paintwork: Remove to leave a firm edge and clean bright metal.
2. Sound paintwork: Provide key for subsequent coats. 3. Corrosion and loose scale: Take back to bare metal. 4. Residual rust: Treat with a proprietary removal solution. 5. Bare metal: Apply primer as soon as possible. 6. Remaining areas: Degrease. 500 Preprimed steel 1. Areas of defective primer, corrosion and loose scale: Take back to bare metal. Reprime as soon as possible. 511 Galvanized, sherardized and electroplated steel 1. White rust: Remove. 511A New bright galvanized, sherardized and electroplated steel 1. Thoroughly degrease. 2. Pretreatment: Apply: 2.1. Mordant solution to blacken whole surface as recommended by coating system manufacturer. 511B Galvanized, sherardized and electroplated steel 1. White rust: Remove. 521 Uncoated steel – manual cleaning 1. Oil and grease: Remove.
2. Corrosion, loose scale, welding slag and spatter: Remove. 3. Residual rust: Treat with a proprietary removal solution. 4. Primer: Apply as soon as possible. 541 Uncoated aluminium/ copper/ lead 1. Surface corrosion: Remove and lightly key surface. 2. Pretreatment: Etching primer if recommended by coating system manufacturer. 552 Uncoated PVC-U 1. Dirt and grease: Remove. Do not abrade surface. 552A Uncoated PVC-U 1. Dirt and grease: Remove. Clean using Sandtex Trade PVC-u Cleaner 552B Painted PVC-U 1. Dirt and grease: Remove. Clean PVC-u using Sandtex Trade PVC-u Cleaner
560 Uncoated concrete 1. Release agents: Remove.
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