Voids, transfer moulding

Lowe JR, Owen MJ, Rudd CD. Void fonnation resin transfer moulding. In Proceedings of the 4th international conference on automated composites, ICAC95. Nottingham, Institute of Materials 1995. pp. 227—34. 

Hamidi YK, Aktas L, Cengiz Allan M. Formation of microscopic voids in resin transfer moulded composites. J Eng Mater Technol Trans ASME 2004 126 420-6. 

Rapid transfer. If the transfer speed is not adequately controlled a too rapid transfer may occur, leading to turbulent or jet-like flow of the material into the mould cavities. This can cause vents to be blocked before all the unwanted volatiles have escaped from the cavity. Too fast a transfer may also lead to excessive heating of the compound and premature gelation which can cause void formation. 

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