- Burrell FRC Blocks are manufactured with controlled blending, mixing and forming techniques to assure a uniform dispersion of nylon fibers throughout each block.
- Quality controlled batching, mixing and pouring, designed to meet or exceed Bureau of Mines standards and testing by independent laboratories assure constant strength control
- Burrell FRC Blocks are better able to take slack in the mine roof, greatly reducing the roof-to-floor closure, without failure
- Burrell FRC Blocks use less space to obtain equal support, using fewer cribs allows more area of movement for personnel, equipment and reduces air resistance.