Phenolic FRP Grating vs Polyester FRP Grating: What Is the Difference?

Key Differences

Feature	Phenolic FRP Grating	Polyester FRP Grating
Fire performance	Excellent, low flame spread	Good, depending on formulation
Smoke generation	Low	Generally higher
Corrosion resistance	Excellent	Excellent
Weight	Lightweight	Lightweight
Electrical insulation	Excellent	Excellent
Typical applications	Offshore oil & gas, marine, high fire-risk areas	Offshore wind, platforms, walkways, industrial facilities
Cost	Higher	More economical

Feature

Phenolic FRP Grating

Polyester FRP Grating

Fire performance

Excellent, low flame spread

Good, depending on formulation

Smoke generation

Low

Generally higher

Corrosion resistance

Excellent

Weight

Lightweight

Electrical insulation

Excellent

Typical applications

Offshore oil & gas, marine, high fire-risk areas

Offshore wind, platforms, walkways, industrial facilities

Cost

Higher

More economical

Why Choose Phenolic FRP?

Phenolic FRP grating is designed for applications where fire safety and low smoke performance are critical. It is particularly suitable for offshore oil & gas facilities and other environments with strict fire-performance requirements.

Why Choose Polyester FRP?

Polyester FRP grating provides a strong balance of corrosion resistance, mechanical performance, lightweight construction and cost efficiency. It is widely used for offshore wind platforms, industrial walkways and general access platforms.

The Right Material Depends on the Application

There is no single “best” FRP grating. The choice should consider fire requirements, chemical exposure, mechanical loads, operating environment and project specifications.

Endura develops and manufactures both standard and customized FRP solutions, helping customers select the right composite material for demanding applications.