Jiangsu Huda Chemical Technology Co., Ltd.
Jiangsu Huda Chemical Technology Co., Ltd.

Types of Urea Formaldehyde (UF) Glue Plant

Urea-formaldehyde (UF) process follows the classic alkali-acid-alkali route with three stages: 1. Hydroxymethylation: Urea reacts with formaldehyde under neutral or weakly alkaline conditions. 2. Polycondensation: Adjust pH to weak acid for polymerization to target molecular weight. 3. Cooling: Revert pH to weak alkali and cool to ambient temperature to obtain precondensed liquid.

Why Build a Urea Formaldehyde (UF) Glue Production Plant?

Building a UF glue production plant adopts the mature classic alkali-acid-alkali three-stage synthesis route with stable and controllable reaction conditions. By precisely regulating pH values in each phase, the system can accurately control the molecular weight of polymer products, and finally obtain qualified pre-condensed urea-formaldehyde glue after neutralization and cooling, which meets the mass production demand of wood adhesive raw materials.


UF Glue Three-Stage Alkali-Acid-Alkali Process Flow

  • 01
    Urea and formaldehyde raw material feeding & mixing pretreatment
  • 02
    Hydroxymethylation: reaction under neutral or weakly alkaline environment
  • 03
    Polycondensation: adjust pH to weak acid for molecular weight growth
  • 04
    Cooling treatment: revert pH to weak alkali and cool to ambient temperature
  • 05
    Filtration and fine adjustment of finished glue index
  • 06
    Qualified UF glue storage and packaging for wood industry delivery
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