- Sealed edges
- Cleanroom Class 10 (ISO Class 4)
- 100% Polyester
- Pre-saturated in 70% IPA/30% DI Water
FREE-SAT ULTIMATE 70™ pre-saturated wipers are made of 100% polyester. These wipes have heat sealed edges. A laser beam cuts and melts each fiber along the edges, eliminating the chance of particle emission. These wipes are vacuum sealed in tough, alcohol resistant nylon bags providing a longer shelf life.