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The glazing industry of the 21st century uses these days increasingly float glass integrated with special coating materials.

PPG Industries' general industrial coatings group has announced an expansion of the Knowledge College(TM) Industrial Coatings training program for next year.

Nippon Sheet Glass, a large Japanese manufacturer, has increased its holding in Pilkington, the UK glass group, from 10 to 21 per cent over the past fortnight, but has ruled out mounting a full bid.

Shares in Pilkington PLC lost ground in weak midmorning trade, in the wake of a ratings downgrade from Goldman Sachs, which blamed a deteriorating earnings climate for their move, dealers said.