Hand-Layup

The hand layup method of composites production is the conventional method in which an operator lays up the fiberglass reinforcements and uses a tool to impregnate the resin into it. Usually, resin for lamination is taken in a bucket and a brush is used to apply it onto the fiberglass layers, hence this technique is also called ‘brush and bucket’ method. Along with brushes other tools like lambs wool rollers, metal corner rollers and paddle rollers are used for better lamination.

Hand layup process requires only a single open mould where the Gelcoat layers are applied first and then the fiberglass layers are laid and wetted with resin.

Features of Hand-Layup Method

• This technique requires less investment as no machinery is required and only a single mould is required. But the process is labour intensive.
• Hand-layup is the most suitable method for parts where reverse flanges come into picture and where the moulds may be required to be split into two for ease in delaminating the part.
• Speed of manufacture depends on the skill of the operators.