Inside the glass-making process an exclusive video series

Press Release
24 Mar 2015

Ever wondered how glass is made? A new series of videos from float glass manufacturer Pilkington United Kingdom Limited takes you on a tour of the whole process at its float glass line in St Helens, UK.


The operation produces more than 550 tonnes of glass every day and runs 24-hours-a-day, 7 days a week. In the videos, four engineers walk you through the whole process, from raw materials arriving at the site and being melted in the furnace, the float bath of molten tin and the critical cooling process, to the plate-cutting and quality-control processes and the distribution and warehousing of the final product.

In the first video, Andy Hiller, raw material and melting manager at Pilkington United Kingdom Limited, talks us through the initial stage in the process – the furnace. Here, raw materials are melted and carefully temperature controlled to prepare them for the float bath.

Careful control over the ingredients entering the furnace is what gives Pilkington Optiwhite low-iron glass its extra-clear appearance, making it ideal for contemporary design and low-impact heritage projects. To find out more about the product, visit