u-PVC
u-PVC stands for unplasticised Poly Vinyl Chloride.
Poly Vinyl Chloride, which we know as 'PVC' is softened by chemical modification
and can then be used in the manufacture of products such as imitation leather.
Stabilisers and additives are added to the mix for the production of u-pvc for window and door systems. It is also necessary to provide longevity, high weather and UV resistance and also to add colour.
uPVC windows are very durable and keep their finish - the biggest bonus of all is that they are maintenance-free. No more sanding, priming and painting and the house reeking of paint for days.
The basic properties of PVCu make it ideal for window and door application, because it does not rot or biologically decompose, it is resistant to weathering with low maintenance requirements, it is tough on impact, it retains its shape within normal climatic temperatures and it can be reshaped at very high temperature and can therefore be recycled.
Some more technical data on this versatile product can be found
within the British Standards, such data as:
Tensile yield Strength at 23%, Apparent Modulus of Elasticity, Impact Strength,
Tensile Impact, Retention of Impact after Ageing, Softening Point, Coefficient
of Linear Expansion, Coefficient of Thermal Conductivity, Thermal Transmission,
Sound Transmission, Water Absorption and Flammability.
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