FireBlock Dura L40/SR70 60 Min

Details

Fireblock Dura L40/SR70 – 60 Minute Fire-Rated Mineral Core

The Fireblock Dura/L40 is a high-performance 60-minute fire-rated door core built for environments where safety and reliability are non-negotiable. Engineered with a hybrid low- and high-density mineral core, it offers superior fire resistance, structural stability, and long-term durability. As part of Fireblock’s top-of-the-line Dura Series, this core is ideal for heavy-duty use in commercial, industrial, and public buildings.

Key Features

60 minute fire rating
Certified to UL 10C:2016 and Certified to BS 476-22:1987 Amd. 2014
Double door assemblies with Steel Frame)
High-performing, mineral-based core
Proven and tested fire performance

Core Construction

Material: Mineral Core

Available Size (mm)

Tested in 2700 x 1200 x 52
Customizable