Glass Design ... As one of the UK’s leading creative glass design companies, Hot Glass Design has established an enviable reputation for manufacturing kiln formed glass. We offer a fully supportive technical design and advisory service whether standard or custom glass is required. Our design led team are able to respond rapidly, ensuring that our product reflects your individual needs. Kiln formed glass has gained a strong popularity in recent years among architects and interior designers being used as an alternative to standard, flat obscured, sandblasted or stained glass. Kiln formed glass is a different, new way to enhance and beautify any interior or exterior location. Kiln Forming Process The glass is fired in our industrial kilns to pre-determined firing cycles and temperatures allowing the glass to conform to the mould, creating areas of varying depth and texture. After the slow cooling process the glass panel is removed from the kiln. One side remains smooth and slightly undulating, while the other, which was in contact with the mould, has a textured surface.