A well-made painting can last for centuries. The thangkas in the old monasteries of Mustang are hundreds of years old. But canvas, wood and paint all react to their surroundings, and Kathmandu’s climate swings from soaking monsoon to dry, dusty winter.
During the monsoon
- Keep paintings off outside walls, where damp comes through the brick.
- Leave a little air behind the canvas. Two small felt pads on the bottom corners are enough.
- If you see small grey spots, call us. Mould is easy to stop early.
In winter
Dust is the main problem. Brush the surface gently every few weeks with a soft, dry brush, working from top to bottom. Never use a damp cloth, glass cleaner or furniture polish on the paint.
Sunlight is the slow enemy. Even the best pigments fade a little if the sun hits them every afternoon.
Ujjwal Rai, painter
Thangkas need extra care
Mineral colours are bound with glue rather than oil or acrylic, so they don’t like being folded or rubbed. Hang them away from butter lamps and incense at close range, and if you roll one, roll it loosely, painted side out, around a wide tube. Our materials and care notes have more detail.
