Hempel Internal Document
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.
Application
711A
Coating generally
1. Application standard: In accordance with BS 6150 & BS 8000; Part 12. 2. Conditions: Maintain suitable temperature, humidity and air quality during application and drying. 3. Surfaces: Clean and dry at time of application. 4. Thinning and intermixing of coatings: Not permitted unless recommended by manufacturer. 5. Overpainting: Do not paint over intumescent strips or silicone mastics. 6. Priming coats 6.1. Thickness: To suit surface porosity. 6.2. Application: As soon as possible on same day as preparation is completed. 7. Finish 7.1. Even, smooth and of uniform colour. 7.2. Free from brush marks, sags, runs and other defects. 7.3. Cut in neatly. 8. Doors, opening windows and other moving parts: Ease before coating and between coats.
711B
Coating Sandtex Trade High Build
1. Spray, roller or trowel application 2. Application standard: In accordance with BS 6150 & BS 8000; Part 12. 3. Conditions: Maintain suitable temperature, humidity and air quality during application and drying. 4. Surfaces: Clean and dry at time of application. 5. Thinning and intermixing of coatings: Not permitted unless recommended by manufacturer. 6. If spraying prime overall with one coat of Sandtex Trade Fine Textured Matt in colour to match finish. Allow a minimum drying time of 4 hours in normal drying conditions. 7. When spraying use a GC 200/24 2HP compressor or larger that can continuously deliver a minimum of 80psi at 4-5 cubic feet per minute on a 3 metre (maximum) length air line to the spray gun. A GC 330 hopper feed spray gun with a 3mm air cap and tip size of 3-4mm tip size. Apply at 40psi air flow/spraying pressure with an 18” (450mm) distance from gun tip to surface being coated. 8. When applying by hawk and trowel 1-2mm thick and texture using a Sandtex Trade High Build application roller, other texturing rollers or tools. 9. Can be applied and textured with a Sandtex Trade High Build application roller.
Crown Trade 23-05-2024
M60 Painting/clear finishing Page 89 of 91
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