STYCAST(r) U 2500 HTR and U 2516 HTR encapsulants offer protection from temperature extremes (-40 deg C to 150 deg C) and chemical exposure commonly encountered in automotive under-the-hood applications. Both materials are two-component, low-modulus, low-viscosity, room-temperature or heat-curable polyurethane encapsulants. This series of products exhibits excellent stability at 150 deg C. Circle No. 123