Showing 0 products
Frequently Asked Questions
How is float glass made?
Molten glass floats across molten tin.
Both faces come out flat and parallel.
The finish is fire-polished by the process.
No grinding or polishing is needed.
That is why it is optically good and cheap.
What does annealed mean?
It is cooled slowly after forming.
Internal stresses are relieved.
The glass is left workable.
It can be cut, drilled and edge-worked.
That is the standard supplied condition.
Is it a safety glass?
No, and this matters.
It breaks into large sharp shards.
And it breaks at fairly low impact.
Toughened and laminated are the safety glasses.
Annealed float is neither.
Where is it not allowed?
Critical locations, in most markets.
Doors and the panels beside them.
Low-level glazing people can walk into.
Bathrooms and wet areas.
Regulations require a safety glass there.
Where is it the right choice?
Picture framing and cabinet glazing.
Shelving and display work.
High-level and secondary glazing.
Greenhouse and workshop panes.
And as the substrate for processing.
How is it specified?
By thickness, mainly.
Thickness governs span and wind load.
Pane size and exposure drive the choice.
Larger panes need thicker glass.
A glazier or supplier will calculate it.
Why does it look slightly green?
Iron in the raw materials causes it.
It shows most at the edges.
And across very large panes.
Low-iron float is available.
It is used where colour accuracy matters.