Industrial grade Fabricated Mica Shield is used as an ideal transparent medium for monitoring the liquid level and pressure of steam. The Mica Shield is used with flat transparent sight glasses in water and liquid level gauges and columns of high pressure steam boilers. The Mica Shield provides protection, retains basic strength and increases service life of sight glasses when used at extreme steam pressure and high working temperature. Industrial grade Fabricated Mica Shield is strong and rigid in construction and requires minimal maintenance.