TR-19 Block is asbestos-free insulation manufactured from vermiculite granules and high temperature bonding materials. TR-19’s unique composition and hard surface helps ensure strong adhesion of cement finishes, and provides superior handling qualities.
Because of its low conductivity, TR-19 Block is an economical, energy saving insulation. It exhibits minimal shrinkage at its 1900°F (1040°C) temperature limit, and will not readily
decompose even when exposed directly to flame or cryolite vapor conditions.
TR-20 Block is manufactured from diatomaceous silica with a hydraulic binder.
TR-20 Block is a superior, high-temperature insulation for service to 2000°F (1095°C). According to ASTM testing procedures, TR-20 exhibits extremely high resistance to breakage
to 2000°F (1095°C). Long, maintenance-free service and maximum operating efficiency is assured by TR-20’s unique combination of low conductivity and high stability.
TR-20 is also very low in sulfur and iron, making it highly resistant to attack from atmospheric conditions and greatly reducing the possibility of product contamination.
