The formwork handled by DuPont Styro includes extruded polystyrene foam insulation material 'Styrofoam' and 'Pitwork,' which integrates special film for use as both floor slab formwork and insulation. With the disposable formwork method that does not require formwork plywood, it is possible to reduce labor costs by simply laying the film surface directly on top of the batt. It allows for shortened and simplified work processes, as it does not require highly skilled techniques. Additionally, any scraps generated during construction can be collected and reused, making it an environmentally friendly product.
DuPont Styro is a company established in 1982, with predecessors including Asahi Dow Ltd. and Dow Process Corporation. Since those times, they have been offering products such as Styrofoam and Woodrack. They provided Styrofoam free of charge to the affected areas of the Great Hanshin Earthquake and the Niigata Chuetsu Earthquake. In 2017, they began manufacturing JIS A 9521-certified products (building insulation materials). Since becoming a subsidiary of Dow DuPont, they have continued to lead the thermal insulation market with superior insulation and heat-retention materials, utilizing overseas bases in the U.S. and Canada.
Source: DuPont Styro Official Website (https://www.dupontstyro.co.jp/history.html)
Pitwork, a combined formwork and insulation material, utilizes Styrofoam technology, which boasts high insulation performance. Despite being 1/30th the weight of water, it excels in compressibility and durability, making it suitable for use in floor slabs as part of the internal insulation structure of apartment buildings. It is functional and environmentally friendly, meeting non-CFC, Green Purchasing Law, and sick house syndrome standards, while also reducing waste and emissions in the manufacturing process.
Styrofoam, which constitutes Pitwork, is used as a stable-performing insulation material by trapping gas with low thermal conductivity within countless independent bubbles separated by thin films of polystyrene resin. It can be used as formwork cum insulation material for reinforced concrete construction, such as apartment buildings. Additionally, some formwork manufacturers produce formworks for civil engineering and building construction. It's important to choose manufacturers based on the types of buildings they support.
DuPont Styro offers floor slab formwork and insulation materials, while other manufacturers provide concrete system formwork. Made of plastic or metal, system formwork can be reused, reducing costs. It simplifies and streamlines construction work, eliminating the need for skilled techniques and shortening the construction period. System formwork is available for residential, commercial, and civil engineering constructions, so it's essential to select the appropriate one for the type of building.
We’ve selected the three most prominent formwork materials in the current market, featuring top manufacturers for each. Our comparison covers the industry standard for general use, the rising innovation in sustainability, and the powerhouse for heavy infrastructure.
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