In July 2023, a full-scale Jet Fire Test was conducted at the Amguri Oil Field (Assam, India) in accordance with ISO 22899-1:2021 and the UK Health & Safety Executive Offshore Technology Report OTI 95 634 standards. A concrete slab protected with U-STUCCO™ FRX was exposed to a high-velocity natural gas jet flame for 120 minutes.

Key Results:

• The protected concrete maintained temperatures between 60–115°C on the unexposed surface, far below structural failure thresholds.

• No spalling, puffing, or delamination occurred during the 2 hour test.

• Only minor surface cracking was observed after two hours of continuous exposure to jet fire.

• The integrity of the protection remained intact, demonstrating stability even under hydrocarbon jet fire conditions.

This performance validates U-STUCCO™ FRX as a reliable passive fire protection (PFP) solution for the oil, gas, petrochemical, and energy industries, where resistance to jet fires is considered the most extreme benchmark for fireproofing materials.