Definition

Noun: A synthetic, thermosetting plastic material. It is created by the chemical reaction of urea and formaldehyde. This resin is known for being colorless and transparent when pure. It is primarily valued for its hardness, scratch resistance, and good electrical insulating properties. Common applications include electrical sockets and switches, adhesives (especially for wood, like in plywood and particleboard), and surface coatings or finishes.

Usage Examples

• The old electrical outlet was made from a brittle urea-formaldehyde resin.
• This plywood uses urea-formaldehyde resin as the bonding adhesive.
• The table's glossy finish is achieved with a layer of urea-formaldehyde resin.

Advanced Usage

• As a modifier: The term is often used attributively (like an adjective) to specify the type of resin used in a product.
  • Example: The company manufactures urea-formaldehyde resin adhesives for the furniture industry.

Variants and Related Words

• UF resin: A common abbreviation for urea-formaldehyde resin.
• Amino resin: A broader category of thermosetting resins that includes urea-formaldehyde and melamine-formaldehyde resins.
• Thermosetting polymer: The general class of plastics to which urea-formaldehyde resin belongs; once set, it cannot be remelted.

Synonyms

• Synthetic resin
• Amino plastic
• Thermoset plastic (in a general sense, referring to its category)

Related Phrases/Compounds

• Urea-formaldehyde foam: A foam insulation material made from this resin, historically used in building construction.
• Formaldehyde emission: A key consideration with products containing urea-formaldehyde resin, as they can release small amounts of formaldehyde gas over time.

Noun

1. a clear thermosetting resin made from urea and formaldehyde and used in electrical fittings, adhesives, and finishes