M60 Master – Crown Paints Master M60 Specification – M60 Master
560A Uncoated concrete 1. Release agents: Remove. 2. Prepare any weak or power floated concrete surfaces by either acid etching or vacuum grit blasting (Blastrac)
3. Care must be taken to minimise surface profile during preparation 4. NOTE: Acid etching will be ineffective on chemically sealed surfaces 570 Uncoated masonry/ Rendering 1. Loose and flaking material: remove. 580 Uncoated plaster 1. Nibs, trowel marks and plaster splashes: Scrape off. 2. Overtrowelled ‘polished’ areas: Key lightly. 590 Uncoated plasterboard 1. Depressions around fixings: Fill with stoppers/ fillers 622 Organic growths
1. Dead and loose growths and infected coatings: Scrape off and remove from site. 2. Treatment biocide: Apply appropriate solution to growth areas and surrounding surfaces. 3. Residual effect biocide: Apply appropriate solution to inhibit re-establishment of growths. 631 Previously painted window frames 1. Paint encroaching beyond glass sight line: Remove. 2. Loose and defective putty: Remove. 3. Putty cavities and junctions between previously painted surfaces and glass: Clean thoroughly. 4. Finishing 4.1. Patch prime, reputty as necessary, and allow to set. 4.2. Seal and coat as soon as fully set. 631A Previously coated windows frames 1. Coating encroaching beyond glass sight line: Remove. 2. Loose and defective sealant: Remove. 3. Seal or bead cavities and junctions between previously coated surfaces and glass: Clean thoroughly. 4. Finishing 4.1. Patch prime, reseal as necessary, and allow to set. 4.2. Seal and coat as soon as fully set.
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