Curing and forming of prepreg is achieved with high pressure and heat inside autoclave.
The lay-up is subjected to carefully managed temperature and pressure profiles, including the specific ramp-up, hold, and ramp-down periods, collectively referred to as the autoclave cycle. This process creates a composite transparency that, after cooling, has impact resistant properties much greater than those of any individual layer.
The prepreg sheets are stacked
The stack of prepreg is then layed in the mold
The vacuum port is created in the vacuum bag
The complte assembly is placed in the autoclave
Pressure and temperature are controlled in the autoclave - polymerization takes place