Permabond 799 Clear is a high viscosity cyanoacrylate adhesive that has a fast cure and the ability to cure through a large gap. Doesn't require mixing or heat cure, is 100% reactive, and contains no solvents. It is commonly used with plastics, metals, ceramics, and elastomers that are rapidly bonded in high speed production lines. Also ideal for porous substrates, due to its fast fixture before wicking into the surface pores. 1 lb Bottle.