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Because all surfaces undergo gas and water adsorption in the molecular range
when exposed to normal atmosphere, they are in some way "contaminated."
To ensure reliable surface conditions for bonding, these surfaces should
be cleaned and degreased. (Care should be taken to remove all solvents,
cleaning agents and water before bonding.)
Doing this will:
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Remove unwanted contaminating films by degreasing / cleaning agents
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Remove dust, oxides, remnants of dirt, paints, mold release agents
Types of cleaning agents
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Industrial detergents - should be rinsed off with deionized water and the
surface thoroughly dried before applying the adhesive or sealant
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Organic Solvents
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Mineral spirits
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Isopropanol or Isopropanol/Acetone mixture
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MEK
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Dow Corning® OS-2 Silicone Cleaner and Surface Prep Solvent
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Removes silicones, oils, greases, waxes and sealant residue from mechanical
applications
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Prepares surfaces to be painted, bonded, or sealed
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Safe on plastics and non-corrosive to metals
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VOC exempt; non-ozone depleting
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Dries quickly
If cleaning and degreasing do not ensure good bonding, consider:
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Primer
Treatment
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Physical Pre-Treatment
For additional information Contact Us
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