2-part, highly thixotropic, room temperature curing, 1:1 mix ratio, methacrylate adhesive system.LOCTITE® AA H3101 is a 2-part, highly thixotropic, room temperature curing, 1:1 mix ratio, methacrylate adhesive system. It is formulated to provide fixturing strength within 20 - 25 min, requiring little or no surface preparation. This adhesive forms resilient bonds and maintains its strength over a wide range of temperatures.