Coating Viscosity Management for Fiberglass Mesh

Coating-bath viscosity can influence the application behavior of a water-based fiberglass mesh coating system.

It may affect:

• Wet pick-up
• Coating penetration
• Surface coverage
• Coating uniformity
• Production stability

The suitable viscosity range depends on the formulation and production process.

Factors that may influence viscosity include:

• Polymer solids content
• Thickener type and dosage
• Water content
• Additive compatibility
• Temperature
• Shear conditions

A coating bath may contain a polymer binder, water and selected additives such as wetting agents, defoamers, thickeners and crosslinkers.

The addition sequence and mixing conditions can also influence the stability of the coating system.

For this reason, viscosity should be evaluated together with coating method, mesh construction, wet pick-up and production speed.

RUI CO develops water-based polymer coating systems for industrial applications and supports formulation adjustment according to specific processing requirements.