All Prepregs are wrapped in a shrink film immediately after impregnation, then packed into a barrier film.

Prepregs should be stored in their original packaging barrier film, or an equivalent film, and maintained air-tightness, at 68^oF (20^oC) and dry place.

If the Prepreg roll has to be maintained out of its packaging barrier film, for few hours during lamination and processing time, it should be wrapped up again in a shrink film. This will protect the Prepreg and extend its tack time.

The small Prepreg pieces, splitted from the roll in order to be laminated, should be handled and protected properly (i.e. in a plastic bag or box), if not used with in a short time (i.e. around 1 hour). The tack time will ranges from 5-24 hours, depending on the handling and protective caring.

The styrene content in the Prepreg is ranging from 15 to 20%. When the Prepreg is left out with out any protection, its weight will drop up to 3% (representing the maximum volatiles content). This will cause significant tack reduction.

Usual precautions should be observed. The Prepreg contains mainly uncured synthetic resins. The operator has to use appropriate mask – respirator and work in a clean, dry (R.H. = 50% or less), and ventilated area. The use of clean disposable inert gloves provides protection for the operator and avoids contamination of material and components.