How can stress cracking of PLEXIGLAS^® be avoided?

Owing to the manufacturing process (e.g. rapid cooling), the moldings may contain high internal stress levels. Fastening methods unsuitable for the material (e.g. pointwise fastening) may also provoke higher stress levels in the moldings (mechanical stress).

When exposed to a corrosive medium (e.g. cleaning agents, screening inks, solvent vapors), these components may show stress cracking. Parts should therefore be produced so as to contain low stress levels (by means of higher mold temperatures, slower cooling, higher demolding temperatures) or subsequent annealing, and should if possible be fastened over large surface areas. Moreover, any cleaning agents used should be compatible with PLEXIGLAS^®.

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