INTRODUCTION
- The above figure shows the spray-up process.
- It consists of fibre, chopper, mould etc...
- Spray-up is an open moulding , composite fabrication process where resin and reinforcement are sprayed onto a reusable mould.
Working
- First we cut the continuous fibres by help of chopper.
- Then a mixture of fiber and resin along with catalyst is sprayed simultaneously onto a vertical mould.
- The density of deposited laminate is later increased with the help of a roller by removing the entrapped air.
- Multiple layers may be added to produce the desired thickness.
- Curing is usually at room temperature but may be accelerated by the application of a moderate amount of heat.
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