Vacuum Infusion Method - High Impact Resistance and Lightweight
In this method, which works on the principle of drawing polyester resin in a vacuumed environment, the glass fibre reinforcements are first applied into themould surface and a vacuum bag is placed over the top and sealed around the mould periphery then the resin is drawn through the glass fibre using a vacuum.
Advantages of Vacuum Infusion Method
• High impact resistance and lightweight
• Products with two smooth surfaces
• Low moulding cost compared to RTM
• Design flexibility
Disadvantages of Vacuum Infusion Method
• Low production rate
• High production cost
• Possibility of production defect
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