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5 Posts in this encyclopedia categoryVacuum films | What are vacuum films?
Vacuuming must take into account that the film has enough space to lie against the product everywhere, without spans. At the location of a span, resin will accumulate, resulting in increased weight and a worse laminate.
Vacuum injection | What is vacuum injection?
A laminate is placed dry in the mould and sealed with a vacuum bag. This bag is vacuumed and resin is drawn into the bag through a supply hose. In this way, the laminate fills absolutely bubble-free and without excess resin. The fibre-resin ratio is therefore very high. As the resin is not processed in the open air, the emission of harmful fumes is kept to a minimum.
Vacuum printing technology | What is vacuum printing technology?
Also called RTM or Light RTM in the composites industry. In this process, fibres are impregnated with resin in a combination of vacuum and pressure in a closed mould.
Vacuum technology | What is vacuum technology?
A process in which the resin is drawn into the fibres by means of negative pressure. See also the entries on infusion or vacuum pressure techniques.
Vacuum-sealing wet laminate | What is vacuum-sealing wet laminate?
A hand-laid laminate contains excess resin and air, which can be removed by applying a vacuum bag. The air pressure pushes against the bag, compressing the laminate and allowing the excess resin to flow into a bleeder mat. This process also removes any air bubbles from the laminate.