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The Bridgestone Group also supplies a wide range of products other than tires.
Many of these products are used in a variety of everyday applications,
and their technologies help to enrich a broad range of industries as well as consumer lifestyles.
Information: Bridgestone Ceased EVA-related operations
Bridgestone Corporation has announced it ceased all EVA-related operations on February 28, 2019. For further information, please contact:
Performance Chemical Products Div.
Imaging Components Sales Department
Important Notice: Concerning the Safe Use of Your Glass Reinforced Plastic (GRP) Water Tank
NOTICEOur GRP water tanks were originally designed in accordance with the “Calculation Method for Designing FRP Tank Structure” issued by the Reinforced Plastics Association in Japan and the useful life of the GRP water tank pursuant to that design was reasonably estimated at 15 years. Accordingly, if you have owned and /or operated the GRP water tank for over 15 years (the “Tank”), it has exceeded the expected designed product life span. Therefore, we strongly recommend that you replace your Tanks as soon as possible.
SAFETY INSTRUCTIONSPlease ensure that these safety instructions are conveyed to your staff and any independent cleaning company that may be engaged in the cleaning of your Tanks.
INQUIRYIf you have any questions, please contact ;
Information: Rubber Dam Replacement
Bridgestone Corporation is providing owners of rubber dams with updated guidance regarding the expected useful service life of this product which is approximately 20 years. This information is intended to supplement information in prior guidance.
Bridgestone supplied approximately 1,500 rubber dams throughout the world between 1980 and 2008, when the company stopped manufacturing this product. Bridgestone is aware of approximately 20 rapid-deflation events during the 40-year period since production began. Although these are relatively rare occurrences, they can potentially have serious consequences, including risk of property damage, personal injury, and even lead to a possible fatality.
A rubber dam consists mainly of rubber and internal reinforcing fibers, and it is our understanding and it is widely-understood that: (1) these materials will deteriorate over time due to heat, exposure to ultraviolet rays, external forces (overflow, vibration and floating debris), and water penetration; and (2) this deterioration often is not visible. The actual rate of deterioration varies widely and depends upon many factors, but based upon its analysis of available data, Bridgestone recommends replacement of dams that have been in service for more than 20 years.
Bridgestone also wishes to share certain observations about dams which remain in service (which again, should only be dams less than 20 years old). If a visual inspection reveals blistering, cracks and/or peeling, these may be signs of an impending failure.
If your dam exhibits any of these conditions – even if it is less than 20 years old – you should immediately take steps to minimize pressure on the dam, install enhanced safety measures such a buoy lines, fencing and warning signage and immediately restrict all access to both the upstream and downstream areas in close proximity to the dam. In addition you should also immediately contact qualified service personnel for advice on repair or replacement.
If you have any questions about proper operation, maintenance and inspection procedures, please contact ;