Normalising

During the manufacture of plastic materials, stresses inherent to the material are created.  Untreated, these stresses can adversely effect the dimensional stability of your components.  These stresses can be relieved by heat treatment of the material in a process known as normalising.  You will be advised where this process is appropriate.  Payne Plastics are able to carry out this procedure in-house.

Annealing

When your component needs to be of exceptional visual appearance, have high resistance to solvent attack or have good dimensional stability, it will benefit from heat treatment.

As machining stresses are detrimental to the performance of a component, via the development of crazing in areas of localised stress, annealing or normalising will be recommended for the benefit of your acrylic component, with the procedure being carried out in-house. Other plastics can also benefit from annealing and this will be advised where appropriate.

Crazing

During machining, areas of localised stress develop.  In acrylic, this frequently leads to the emergence of crazing which has a detrimental effect on the appearance of the component.  Even if crazing does not form, the localised stresses can lessen the durability of a part.  We will advise you as to whether or not your component will benefit from heat treatment to avoid these problems.  Annealing or normalising will be recommended for the benefit of your acrylic component, with the procedure being carried out in-house.

Other plastics can also benefit from annealing and this will be advised where appropriate.

Acrylic

When your component needs to be of exceptional visual appearance, have high resistance to solvent attack or have good dimensional stability, it will benefit from heat treatment.

As machining stresses are detrimental to the performance of a component, via the development

of crazing in areas of localised stress, annealing or normalising will be recommended for the

benefit of your acrylic component, with the procedure being carried out in-house. Other plastics can also benefit from annealing and this will be advised where appropriate.

M1 Turntable photograph courtesy of Musical Fidelty' with words 'Musical Fidelity'