Gas cavity filling
Gas filling the cavity inside sealed units gives added thermal insulation. All our units come with Argon gas as standard. Argon is the most common gas used, with Krypton and other rare gases used for certain types of specialist glazing.
More commonly used due to cost, Argon is 1% of the atmosphere and is readily available from several suppliers in gas or liquid form. Argon is twice as dense as air and thus slows the heat transfer across the cavity of the sealed unit, giving extra thermal insulation.
Argon gas from our suppliers on-site Argon storage tanks is transferred into the IGU cavity during processing using either the ‘on-line’ gas press facilities or ‘off-line’ gas filler where the IGU’s are shaped or have external decorative features. 16mm & 20mm cavities maximise the effects Argon gas filling.
Our suppliers bystronic tandem gas press – gas fills 2 units at once