White Papers

Adhesive Testing - A Necessary Cost?

Testing is an extremely critical function in the adhesive and sealant industry for several reasons. One cannot reliably predict the characteristics of the joint based solely on parameters of the adhesive, substrate, and joint design. Therefore, testing is necessary to confirm expectations.

This white paper, written by Edward M. Petrie reviews the importance of testing in the adhesive and sealant industry and why it is a necessary cost that must be dealt with by both the adhesive formulator and end-user. It discusses the importance of standardised test method as well as looking at the process of designing an adequate test program.

Topics Covered:

  • Necessity of Adhesive Testing
  • Importance of Standardised Testing
  • Fundamental Material Property Tests
  • Standadised Test Method to Determine Performance
  • Designing a Test Program

adhesive-testing

Adhesive Bonding of Polyolefin

Polyolefin polymers are used extensively in producing plastics and elastomers due to their excellent chemical and physical properties as well as their low price and easy processing. However, they are also one of the most difficult materials to bond with adhesives because of the wax-like nature of their surface.

This white paper, written by Edward M. Petrie reviews reasons why polyolefin substrates are so difficult to bond and discussed the various methods that can be used to make the task easier and more reliable.

Topics Covered:

  • Polyolefins and their Surface Characteristics
  • Polyolefins Surface Preparation Processes
  • Primers and Adhesion Promoters
  • Adhesives for Direct Bonding of Polyolefins

adhesive_bonding_of_polyolefin

Addressing Silicone Contamination Issues

Since adhesives and sealants must function by surface attachment, the nature and condition of the substrate surface are critical to the success of any bonding or sealing operation.

This white paper, written by Edward M. Petrie addresses the various issues related to silicone contamination including how it disrupts adhesion, detection methods, and cleaning processes.

The author beleives the best policy is to avoid silicone contamination to keep problems from occurring in the first place and so also discusses preventive contamination strategies.

Topics Covered:

  • Mechanism of Contamination
  • Detection of Silicone Contamination
  • Removal of Contamination
  • Prevention of Contamination

addressing-silicone-contamination-issues

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