Most people in the adhesives and sealants industry are aware of viscosity and realize that it characterizes the way a material will flow. More technically speaking, viscosity refers to a material's resistance to flow; it can be measured in various ways, depending on the application.
The criminal element has discovered the thousands of uses for adhesive tape, and it is being found more and more often as trace evidence at crime scenes. By far the most common tape found as evidence in two out of three cases involving adhesive tape is duct tape.
Substrates with reactive groups available for bonding make chemical bonding easier to achieve, while substrates with nothing to react to make adhesion difficult.
October 1, 2005
Adhesive technology is equal parts chemistry and "black magic." The sheer number of available substrates makes it nearly impossible to test each adhesive on every type. However, by conducting tests on a selection of novel, or difficult-to-adhere-to, substrates, we can make inferences that may help narrow the choice of adhesives.
Standards are an important aspect of your business. If you manufacture, purchase, or use sealants or if you supply raw materials for sealants, your company relies on standards every day. R&D uses test methods and specifications to characterize, compare and develop products. Marketing and Sales use these same standards to advertise and promote products. When materials or sealants are purchased, they must comply with specifications.
ISO 9000 has been revised—but the new standard, called ISO 9000:2000, is a radical revision and the industry has questions.
April 17, 2000
In view of the impact of this revision and the costs it will entail, organizations understandably have many questions and concerns. Do we have to register to the new standard? How long is our current certification good for? Why the change? What’s the difference between the old ISO and the new ISO? How will it change the way we run our business? Who will benefit from the new standard? Who will be hurt? Will it be more difficult to implement the new ISO than the old ISO?
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