Lash Glue Colour: Black Fumes Level: Low Technique: Volume&Classic Skill Level: Expert/Advanced Drying time: 1-2 seconds Viscosity: Thin Retention: 5-6 weeks Recommended temperature and humidity: 71-75F (22-24C), 55-65% Size: 5ml Lash Bonder Lash bonder seals the adhesive effectively without shock curing.Maximises retention by up to 30%, eyelash bonder works with any adhesive,reduces sensitivity and irritation,and the Lashes Are Safe To Get Wet Just 3 Mins Later Lash Primer As a Pre-Treatment Cleanser. lash extension primer is used to help remove extra proteins to strengthen the bonding of glue.It helps clean the lashes gently, which allows the extensions to adhere longer to the natural lashes. Our lash extension primer can keep longer life time to the eyelashes.