Last edited 23 Nov 2020

Thermoplastic materials in buildings

Approved document B, Fire Safety, Volume 1 Dwelling houses, defines a thermoplastic material as:

'Any synthetic polymeric material that has a softening point below 200°C if tested to BS EN ISO 306 Method A120. Specimens for this test may be fabricated from the original polymer where the thickness of material of the end product is less than 2.5mm.'

Acrylics are an example of thermoplastic materials. Acrylics are chemicals that contain the acryloyl group, derived from acrylic acid, such as polyacrylonitrile and poly(methyl methacrylate) (PMMA). They generally have good optical clarity, scratch resistance, dimensional stability and rigidity. They are do not deteriorate in sunlight and they have good adhesion, are thermoplastic, easy to form and cut into a variety of shapes. However, they are combustible, are not flexible, suffer from stress cracking and are not resistant to solvents.

Acrylics have a very wide range of uses in the construction industry:

[edit] Related articles on Designing Buildings Wiki

Designing Buildings Anywhere

Get the Firefox add-on to access 20,000 definitions direct from any website

Find out more Accept cookies and
don't show me this again