What is Polyester Resin Adhesive?

What is Polyester Resin Adhesive?

Did you know that there’s an adhesive capable of bonding various materials, from metal to wood, and is widely used in the composite industry? That’s Polyester Resin Adhesive. This is a thermosetting plastic synthesized from the reaction between organic acids and polyhydric alcohols. Polyester Resin Adhesive not only offers strong bonding properties but also has wide applications across various industries.

Composition and Properties of Polyester Resin Adhesive

Polyester Resin Adhesive consists of three main components:

• Unsaturated Polyester Resin (UPR) – Determines the physical and chemical properties of the adhesive.
• Catalyst – Typically Methyl Ethyl Ketone Peroxide (MEKP). The catalyst works by creating free radicals that initiate the polymerization process of the resin, helping the adhesive to cure.
• Accelerator – Speeds up the curing process by reducing the time needed to complete the polymerization process, ensuring that the adhesive achieves maximum hardness in the shortest time possible.

Comparison with Other Adhesives

Comparing Polyester Resin Adhesive with Epoxy Resin:

• Environmental Impact:
  Polyester Resin Adhesive often has higher VOC (Volatile Organic Compounds) content compared to epoxy resin, which can negatively affect air quality and human health. However, Polyester Resin Adhesive still meets certain environmental standards such as REACH and RoHS.Epoxy Resin tends to emit fewer toxic gases and has less environmental impact, but its production process is more complex and involves harmful chemicals.

Environmental Standards

Polyester Resin Adhesive complies with environmental standards like:

• REACH (Registration, Evaluation, Authorisation, and Restriction of Chemicals): Protects human health and the environment from harmful chemicals.
• RoHS (Restriction of Hazardous Substances): Limits the use of hazardous substances in manufacturing.

Types of Polyester Resin Adhesive

Polyester Resin Adhesive is classified into various types depending on application and properties:

• Ortho Polyester Resin: The most common type, used in general applications like making furniture and building materials.
• Iso Polyester Resin: Offers higher durability and better corrosion resistance, often used in applications that require strength and can withstand harsh environments, such as chemical tanks and boats.
• Specialized Polyester Resins: Adhesives designed for specific applications, such as heat-resistant adhesives, high-strength adhesives, or adhesives for the aerospace industry.

Applications of Polyester Resin Adhesive

Polyester Resin Adhesive is widely used in various fields, and here are some specific examples:

• Composite Industry: Used to bond and reinforce fiberglass during the production of composite products such as fiberglass boats and chemical storage tanks.
• Construction: In construction, Polyester Resin Adhesive is used to repair and bond surfaces like concrete walls and granite.
• Woodworking: Polyester Resin Adhesive is utilized in furniture manufacturing, helping to reinforce and bond wooden components securely.
• Model Making and Molding: In this industry, Polyester Resin Adhesive is often used to create molds for plastic products.

Safety in Using Polyester Resin Adhesive

Polyester Resin Adhesive should be used and stored properly to ensure safety:

• Fire and Explosion Hazard: Polyester Resin Adhesive can spontaneously combust if not stored properly or if too much catalyst is mixed. Always store the adhesive in a cool, dry place, away from heat sources.
• Handling Accidents:
  • In case of fire: Use a CO2 extinguisher or foam to put out the flames.
  • In case of spills: Avoid direct contact, and use non-flammable absorbent materials or paper towels to clean up.

Reliable Suppliers

Here are some reliable suppliers of Polyester Resin Adhesive:

• 76plastic: Specializes in providing Polyester Resin Adhesive for the composite, construction, and maritime industries.
• Vietnam Composite: A supplier of high-quality materials and Polyester Resin Adhesive with international standards.