SINTETIKA sinks are made up of composite materials with a thermostable base and mineral charges, everything reinforced with fibreglass. Other components are added on to this compound, such as thermoplastic additives, catalysators, thickeners, and pigments.
The way of displaying the composite for its processing and the utilization of components such as granite, bring us to several denominations: SMC delivered in sheets, BMC delivered in blocks with 10% of natural stones, MMC with mineral additions up to 40%, et cetera. The PiMC (Powder in Mould Coating) is an electrostatic powder covering applied over a warm mould before pressed; it polymerizes with the SMC base material making a high resistant decorative lay.
The transformation is made in a warm mould (130-160ºC) under high pressure (120 BAR); during these hard conditions held along a given time, the material polymerises. This is a non-reversible process, which means that after the material has been polymerized, it cannot be melted down by high temperatures as opposed to thermoplastic.
In order to achieve in some models a peculiar surface finishing and aesthetic, fine dust paint is applied on to the mould, which polymerises together during the moulding process. It is what we call Powder in Mould Coating (PiMC).
Composite is used in many different sectors like in the car industry where to achieve a reduction of weights and an increase of the structural resistance has become a main goal: fins, carbody elements, ceiling, structural pieces, motor fan, bumper, truck cabins... In the public transportation composite is used for door panels, window frames, inner pillars of trains, trays for heavy luggage, seats... In the electric field is used for making housings for outdoor lights, electric closets, housings for irons, other appliances... In the construction sector composite is used for the outdoor panels of a building, cornices, grids for drains, balconies, decorative details, bathtubs, sinks...
The main difference lies in the use of fibreglass as a reinforcement element. Fibreglass, using the resemblance of the reinforced concrete, is the iron in the concrete. Fibreglass is the element which mechanically joins the rest of components: resins, mineral loads and additives. The effectiveness of this union provides the product with a greater elasticity, improving its resistance against impacts and thermal shocks. This characteristic is very important when we think all the cold and warm quick changes that a sink suffer everyday. When we break a composite sink it deforms and breaks, meanwhile an acrylic one presents a fragile breakage. Therefore an acrylic sink will break apart without previous mechanical deformation.
The use of fibre let design lighter pieces so a designer can use its shape as a resistant section. Acrylic sinks need a lot of mass in order to reinforce those angles and sections, that would otherwise risk breaking apart. In this way, a heavier sink does not mean a better quality one but reinforcement need. In new buildings or installations of any kind, an installer will always be happy to carry around lighter sinks, which are easy to handle.