Hand layup is the most common and least expensive open moulded method. Fibre reinforcements are placed by hand in a mould and resin is applied with a brush or roller.
In this process, the glass fibre is chopped and sprayed over the mould. The resin is also sprayed over the mould as the reinforcement material which gives even thickness and smooth finish to the product. It also reduces the usage of resin which eventually increases the strength of the product.
(Light Resin Transfer Moulding)
Resin transfer moulding is a closed moulding method in which reinforcement material is loaded into a closed mould, the mould is clamped, and resin is pumped in under pressure.
VACUUM RESIN INFUSION
Vacuum infusion process is a technique that uses vacuum pressure to drive resin into laminate. Vacuum infusion is typically used to manufacture very large structures. Vacuum infusion produces strong, lightweight laminates and offers substantial emissions reductions.
SILICON RUBBER MOULDING
The silicone rubber mould process is a soft tooling by indirect mould manufacturing method. Compared to the traditional processes, the number of usage times is higher.
Pultrusion is a continuous process of manufacturing in which a specifically arranged pattern of resin rich reinforcement fibre or fabric is pulled through heated steel die to form profiles of consistent cross section of continuous length.