HAND LAY UP MOULDING PROCESS

INTRODUCTION

· It is the method of production of fiber-reinforcement plastics.

· It is the open mould process.

· It is the simple and oldest method.

· There is virtually no limit to the size of the part that can be made.

· The mould can be made of wood, sheet metal, plaster and FRP composite.

· Working

· In order to produce a composite by using glass fibres and polyester resin, a gel coat is first applied to the open mould.

· Fibre glass reinforcement which is normally in the form of a cloth or mat is manually placed in the mould.

· After pouring the plastic resin which are mixed with the catalysts and accelerators.

· Rollers are used to remove entrapped air.

· To increase the thickness of the composite being produced, more layers of fiber glass mat and resin are added.

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MECHANICAL ROCKS

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