Polymer Binder Solutions for Fiberglass Mesh Coating

The polymer binder is an important component of a fiberglass mesh coating system.

Its selection can influence adhesion, film formation, flexibility, stiffness, water resistance and resistance to alkaline conditions.

The binder system can be selected according to:

• E-glass yarn type
• Existing sizing system
• Mesh construction
• Coating equipment
• Target coating add-on
• Drying temperature
• Final application

A suitable formulation may contain a single polymer binder or a combination of polymer systems.

Additional formulation components may include:

• Wetting agents
• Defoamers
• Thickeners
• Crosslinking agents
• Other functional additives

The formulation needs to be considered together with the coating process. Solids content, viscosity, wet pick-up, line speed and drying conditions can all affect the final coated mesh.

RUI CO develops water-based polymer solutions for industrial applications and provides technical support for fiberglass mesh coating formulation development.