Polystyrene block – chalking paint

Causes

Weathering, UV light exposure – chalking will be more visible with darker colours

Listed under: Exterior, finishes, plastic, paint, polystyrene, cladding, walls, wall cladding, polystyrene blocks

Cause

Weathering, UV light exposure – chalking will be more visible with darker colours

Repair

  • thoroughly wash to remove chalking; sand and repaint applying a minimum two coats of semi-gloss or high gloss acrylic paint

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