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The Challenge
In front of tightening legislation concerning the reduction of VOC (volatile
organic compound), adhesives manufacturers are working to make this possible in
typical manufacturing conditions in all markets.
The Solution
By using SMP-based adhesives, the reduction of VOC is reached by two factors:
- the reduction of VOC content in the adhesive itself
- the minimization of the number of pre-treatment steps involving VOC during the
bonding
process
Indeed, the use of solvent to reduce the viscosity was a common process during the
formulation of the adhesive. With Simson SMP-based adhesives, no VOC adding is needed
to obtain the right viscosity.
In addition to that, most of SMP-based adhesives do not need pre-treatment surface
with primer before application. Traditionally, surface treatment involves
two solvent containing steps, only one is needed with SMP based adhesive, thereby
reducing the VOC output by approximately 50%.
In some cases, when bonding plastics susceptible to stress with corrosion or cracking,
the reduction of VOC in the bonding process helps to avoid failures
due to combined presence of solvents and mechanical stresses.
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