● Acoustic Testing:
The unique construction of Q-lon actively absorbs sound pollution and can increase the acoustic insulation properties of your window by up to 35 per cent.

● Compression Testing:
The longevity of Q-LON is unquestioned -long-term memory tests have demonstrated that Q-LON is an efective andenduring weatherseal.

● Reduced air infiltration
This best demonstrates how favourably Q-LON performs against other weatherseals at exteremes of temperature.thereby supporting long-term windows performance guarantees.