ISOLATEK® MANDOSEAL™ is a spray-applied vermiculite based non-combustible sealant specifically developed for the underground mining industry. MANDOSEAL was developed as a result of joint research with the Ventilation Branch of the National Coal Board, UK.
MANDOSEAL is composed of vermiculite aggregate, portland cement and selective ingredients to aid in spray application and bonding to various materialsurfaces commonly used in mine construction.The mixture is pre-blended requiring only the addition of water. It sets and dries to form a hard durable monolithic finish.
Sealing roadways and pack sides.
To Control the leakage of air and minimize heatings in areas of spontaneous combustion.
To fireproof the roadway on both the intake and return sides.
As a sealant to control ventilation.
Roadway junctions, transfer points and air crossings.
Small stoppings of mandoseal are easily placed and will not shrink under fire conditions.
Sealing, repairing and pre- venting spalling of roofs and ribs and around electrical equipment where a noncombustible material is required.
Used by the National Coal Board (NCB), UK for over a decade at more than 100 different collieries.
Approved and Listed as a sealant for mine ventilation controls by the Mine Safety and Health Administration (MSHA), a division of the U.S. Department of Labor.