Feature 1Ideal for replacing defective or broken touch screen LCD screens. 2This is a true LOCA (Liquid Optical Clear Glue) gel. The syringe will protect it from the hardening of conventional lights. 3UV light curing UV glue must be cured using UV light. It will harden in about 30 seconds, but it is recommended to cure for about 3 minutes. Sunlight can also be used, but it takes more time to cure. 4Original UV glue LOCA liquid optical transparent adhesive for mobile phone cover glass LCD screen repair. 5Installed in an syringe, which protects glue from normal light and hardens it.Features: Ideal for replacing defective or broken touch screen LCD screens. This is a true LOCA (Liquid Optical Clear Glue) gel. The syringe will protect it from the hardening of conventional lights. UV light curing UV glue must be cured using UV light. It will harden in about 30 seconds, but it is recommended to cure for about 3 minutes. Sunlight can also be used, but it takes more time to cure. Original UV glue LOCA liquid optical transparent adhesive for mobile phone cover glass LCD screen repair. Installed in an syringe, which protects glue from normal light and hardens it. Specification: Capacity: 5ML, 10ML (optional) Validity: 5 months PhysicalProperties Test method Specification Appearance Visual Inspection Clear Viscosity Brookfield RVT, 25C, 20 rpm, spindle #3 2,300 - 2,800 mPa.s Density Uncured Adhesive at 25C 0.93 g/cm3 Cure Condition UVA: 250 to 420 nm, 2500 mJ/cm2 Hardness ASTM D2240 E type 18 - 30 UV Curing Depth Cured @100 mW/cm2for 30s >3.0mm Volume Shrinkage Density Meter