Coating Formulation for Different Fiberglass Mesh Structures

Fiberglass mesh products can vary in mesh weight, aperture size, yarn construction and end-use application.

Typical product structures may include:

• 90–100 g/m², 10 × 10 mm mesh for interior plaster
• 110–125 g/m², 5 × 5 mm mesh for plaster reinforcement
• 145 g/m², 5 × 5 mm mesh for ETICS applications
• 160 g/m², 4 × 5 mm mesh for ETICS and stone backing

These differences can influence the requirements of the coating system.

The coating formulation may need to be adjusted according to:

• Mesh openness
• Yarn density
• Target stiffness
• Required flexibility
• Coating penetration
• Dry coating add-on
• End-use performance requirements

A formulation approach developed for one mesh structure may require further adjustment when applied to another product.

For this reason, coating development generally involves both formulation evaluation and process trials.

RUI CO provides water-based polymer solutions for fiberglass mesh and other industrial textile coating applications.