• Repair surface defects. Ensure the plaster is fully cured and dry.
• Sandpaper/wire brush to remove all loose sand, nibs and other build-ups.
• Scrape off fungus, mould growth and salt deposits by wire- or coir-brushing. Wash with running water. Leave to dry thoroughly.
• For interior walls smoothened with lime punning, allow 6-9 months for curing. For plaster of Paris jobs, allow 20-25 days for drying.

Preparation of Previously Plastered Surfaces

• Repair surface defects. Remove soft, blistered, loose or flaky paint, chalk, dirt and dust: sandpaper, wire- or coir-brush under running water.
• If previous coating is Lime Wash or Dry Distemper, scrape off thoroughly.
• Wash fungus affected areas with fungicide. Observe for a few days for reappearance of fungus.
• Wash off stains and grease on interior walls with a mild soap solution.
• If previous coating of Oil Bound Distemper or Emulsion Paint is in good condition, sandpaper lightly to remove surface sheen/gloss.

Preparation of New or Unpainted Metal Surfaces

• Scrape off all rust, scales, etc. and rub dry with emory cloth/paper or wet rub with kerosene.
• Wash with mineral turpentine, and wipe dry with clean cloth.

Preparation of Previously Painted Metal Surfaces

• Remove all blistered, loose or flaking paint.
• Clean rusted areas down to bright metal.
• Remove all traces of oil and grease with mineral turpentine, and dry.

Preparation of New or Unpainted Wood Surfaces

• Sandpaper along wood grain to smoothen the surface. Dust off.
• Treat the wood by applying 2 coats of Bison Wood Protektor Clear (anti-termite, anti-wood borer, etc./ water repellent / anti-fungal solvent) with 6-8 hour intervals. Dry for 72 hours.

Preparation of Previously Painted Wood Surfaces

• Remove all blistered, loose or flaking paint by scraping or dry sanding with emery paper No. 120
• Remove all traces of oil, grease, smoke, by washing with soap solution.
• When dry, sandpaper lightly and dust off.