High transparency, low yellowing, very high viscosity light-cure acrylic-based adhesive. High, on-demand curing speed. LOCTITE® AA 3494 is a clear, low yellowing, light-cured, universal, acrylic-based instant adhesive suited to plastics and well suited to ceramics, glass and metals. It has a high, on-demand, curing speed. Depth of cure is >13 mm. Tack free time >30 secs. Fixturing time is 8 secs. Shore hardness: D 65. Very high viscosity 6,000 mPa·s.