Process for making a glossy finish sandwich composite

A process for making a glossy finish sandwich composite, the process comprising the steps of:

• a. dry and wet processing of inorganic industrial waste particulates, wherein the inorganic industrial waste particulates are selected from a group consisting of marble waste, fly ash, lime, gypsum rich wastes mineral, metallurgical, chemical, fertiliser wastes, glass fibre reinforced plastic (GRP) waste and silica fume waste, to obtain processed inorganic industrial waste particulates;
• dry and wet processing of chopped natural fibres and synthetic fibres, wherein the natural fibres are selected from a group consisting of sisal fibre, jute fibre, banana fibre, flax, cotton, and hemp fibres, followed by hot air curing to obtain the processed natural and synthetic fibres;
• b. homogeneous mixing of the processed inorganic industrial waste particulates and the processed natural and synthetic fibres with a polymer selected from a group consisting of epoxy resin, polyester and polyurethane resin, along with a catalyst to prepare a glossy finish reinforced polymeric skin composite material;
• C. casting the glossy finish reinforced polymeric skin composite material under compression moulding to form first and second glossy finish reinforced polymeric skin composite sheets;
• d. demoulding the first and second glossy finish reinforced polymeric skin composite sheet;
• e. curing the first and second glossy finish reinforced polymeric skin composite sheet of step d in a natural or a hot air oven;
• f. subjecting polyurethane foam to injection moulding or subjecting agro-wastes reinforced polymeric materials to compressive moulding to form an inner core material between the first and second glossy finish reinforced polymeric skin composite sheets of step e to obtain a glossy finish sandwich composite;
• g. casting the glossy finish sandwich composite of step f under compression moulding;
• and
• h. demoulding the glossy finish sandwich composite of step g and curing the glossy finish sandwich composite in a hot air oven.