Alcro System Grundfärg Trä White 3 litre exterior wood primer

Price: £42.50 (Inc. VAT)
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System Grundfärg Trä is a waterborne alkyd primer that is specially suited for painting wooden exteriors of buildings and other outdoor woodwork.

CLEANING AND PREPARING THE SURFACE. Round off sharp corners and edges. Sand hard and smooth surfaces with sandpaper. Grey, porous wood or loose paint has to be scraped or brushed down to a clean and sound surface. Brush all surface areas clean until all dust and dirt is removed.  PREVIOUSLY PAINTED SURFACES: Wash with Delfin Grovrent. Remove mould, mildew and algae growth with Delfin Alg & Mögeltvätt. Thick and cracked layers of paint have to be completely removed.  FACTORY-PRIMED WOOD: You might need to prime the wood again. Ask your local Alcro distributor or store for advice. New pressure-creosoted wood has to be dry before you can paint it. The drying time will depend on the weather and wind conditions, but you can expect the wood to take a few weeks to dry. Remember to always check the moisture ratio of the wood, which may not exceed 16% before painting. Remove copper salts and green crystals by washing with water and brushing with a hard brush. WOODEN SECTIONS AND PARTS THAT ARE EXPOSED TO MOISTURE, SUCH AS JOINTS AND ENDS OF BOARDS: Treat these first with System Grundolja, then prime with System Grundfärg. Paint rusty nail heads with Allround first.

PAINTING. STIR THE PAINT WELL BEFORE USE. Apply a generous coat of paint on the surface with a brush or roller. Let the surface dry thoroughly before you paint the finish coat. Paint also ends of boards. You can reduce the risk of discolouration from knots in the wood by applying an extra coat of primer directly on the knots. The surface has to be dry when you paint (maximum moisture ratio of 16%). Do not paint coats that are too thin. Use a generous, flowing amount of paint as recommended. Do not paint on surfaces that have been heated by the sun. Do not paint if there is a risk for rain in the next 24 hours, or if dew will form on the surface within 1-2 hours after you finish painting. Read our instructions, product fact sheets, brochures and website for further information.

• Available: 1, 3 and 10 litre cans
• Application: Brush or roller
• Solvent: Water
• Sheen Level: Gloss free
• Thinning: Do not thin
• Touch dry: 4-6 hours
• Recoatable: 24 hours approx
• Coverage: 4-8 m2 per litre

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Product Code: SYST226