5.4.3 Fluid Characteristics of Adhesives

5.4.3 Fluid Characteristics of Adhesives

Several additional characteristics should be considered when specifying an adhesive for an application. As with any unique fluid or paste, there will be several properties unique to the particular chemistry that will affect how and where it can be used.

Regardless of the chemistry, all adhesives exhibit one or more of these properties:

  • Thixotropy
  • Viscosity ranging from ‘water thin’ to paste (i.e. 1 mPa.s to greater than 200,000 mPa.s)
  • Adhesive texture, i.e. ‘stringy’
  • Viscosity/temperature relationship sensitivity
  • For 2C adhesives: Viscosity changes over time after mixing

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