Epoxy adhesives are classified under _____ adhesives.

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  1. polyester
  2. polymeric
  3. water borne
  4. latex

Answer (Detailed Solution Below)

Option 2 : polymeric
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Detailed Solution

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Explanation:

 Polymeric Adhesives

  • This category includes adhesives made from synthetic polymers, like epoxy, polyurethane, acrylic, and silicone.

  • Epoxy adhesives fall under this group as they are thermosetting polymers formed by the reaction of epoxide resin and a hardener.

  • They offer high strength, chemical resistance, and durability, suitable for construction, aerospace, and structural applications.

 Additional Information

Polyester Adhesives

  • Made from unsaturated polyester resins.

  • Commonly used in bonding fiberglass, automotive parts, and stone surfaces.

  • They cure through chemical reactions and offer good hardness but are less flexible than epoxies.

Water-Borne Adhesives

  • These adhesives use water as a carrier for the bonding agent.

  • They are commonly used in paper, packaging, wood, and textile industries.

  • Not suitable for heavy-duty structural bonding like epoxies.

Latex Adhesives

  • Made from natural or synthetic rubber dispersions in water.

  • They are flexible, quick-setting, and often used in flooring, carpet installation, and crafts.

  • Not chemically comparable to epoxy adhesives in terms of bonding strength or durability.

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