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Formwork Manufacturer & Product Introduction Media | Formwork Finder » Japanese Manufacturers of Plastic Formwork for Concrete Structures » DuPont Styro

DuPont Styro

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 Formwork
Image source:DuPont Styro Official Website(https://www.dupontstyro.co.jp/styrofoam/product/pitwork.php)

Features of DuPont Styro

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)

Technology at DuPont Styro

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.

Applicable Constructions from Examples of DuPont Styro

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 Company Information

Select Appropriate System Formwork for Construction Project

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.

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  • Plywood (Reduce Initial Costs)
  • FRP (Improve Efficiency & Cost Savings)
  • Steel (Handle Large-Scale Projects)
For Reduce Initial Costs
Plywood Formwork
Sankikatawaku Industry
Image of Plywood formwork

Image source:Sankikatawaku Industry Official Website
http://www.sankikatawaku.co.jp/gallery/

Recommended reason
  • Stable, low-cost supply through direct imports from Malaysia.
  • Custom curved and relief panels available in small quantities.
For Improve Efficiency & Cost Savings
FRP Formwork
Fourbuild
Image of Fourbuild formwork

Image source:Fourbuild Official Website
https://kwa5ykjyax.lp-essence.com/

Recommended reason
  • Patented modular design for fast, accurate assembly.
  • Compatible with existing plywood formwork.
For Handle Large-Scale Projects
Steel Formwork
Toda Industry
Image of Toda Industry formwork

Image source:Toda Industry Official Website
https://www.toda-mold.co.jp/architecture

Recommended reason
  • Extensive experience in bridges, highways, precast structures, seismic retrofits, and railway slabs.
  • Multiple patents for complex formwork designs.