Feature of EXPANTAY

								●Japanese Site

Enabling a reliable finish, significant improvement in working efficiency, and superior cost performance, the 5-stage EXPANTAY, an ideal combination of the characteristics of 100% closed-cell foam type foamed polypropylene, butyl rubber, synthetic rubber (EPDM), glass fiber, stainless steel, and polyvinyl chloride, is our greatest epoch-making preformed expansion joint filler, surpassing conventional elastite joint fillers.
This is now attracting attention as a construction method that brings new perspective to the building industry.

Not being satisfied with just ISO9001:2008 accreditation, we have gained ISO14001:2004 accreditation. Environmental loads are continuously reduced by our environmental management system in addition to our quality management and customer-first policy.
Considering our social responsibility as a company and the serious circumstances underlying environmental issues, we have gained ISO14001 accreditation in addition to ISO9001 accreditation. We will work toward offering higher-quality services by operating our own environmental management system to reduce environmental loads in an environmentally friendly manner as well as offering our technological capabilities and developmental power that can address the needs of the dramatically changing times and our quality control system that can satisfy customers.

ISO9001 certificate

National patent
No. 1296562
Other 106 held,
and 67 pending

There is a wide variety of needs for modern building components. Nevertheless, beautiful, functional, and labor-saving materials and construction methods are common to those needs. There are no exceptions for even rooftops.
A hard look is also being given at joint fillers in their waterproof layer. The emergence of preformed expansion joint fillers that perfectly meet the needs of the age; beautiful finishes, outstanding physical functions, and labor-saving construction methods, which could not be met by conventional products, has created a big sensation in the building industry.
With the dawn of the 21st Century, expectations for preformed expansion joint fillers are on the rise.
The 5-stage <<EXPANTAY>> is a preformed expansion joint filler we have commercialized to exert composite synergistic effects for all of plastics toughness and beauty, synthetic rubbers (EPDM) durability, unvulcanized butyl rubbers adhesive power, stability in combination with glass fiber, foamed polypropylene elasticity, and stainless steel rigidity.

Incorrect selection of expansion joint fillers will lead to water leakage and other accidents because filler cannot fulfill their functions adequately. As a matter of course, it goes without saying that rooftop views will be spoiled from the viewpoint of a finish. It can be said that preformed expansion joint fillers meet the needs of modern architecture on every count of beautiful finish, good workability, etc. These joint fillers have already been adopted in many buildings. The excellent performance of our preformed expansion joint fillers has gained recognition from government and other public offices, and the preformed expansion joint fillers have clearly raised the standard specifications of public construction works and guidelines for execution management by the Ministry of Land, Infrastructure and Transport.

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