High-Tech Conversions FS-NT1-77.99, 7 x 7 Free-Sat Wipes, 99%/1% IPA, 100/tub, Case of 12 Tubs
High-Tech Conversions FS-NT1-77.99 Free-Sat® Wipes — 99% IPA / 1% DI Water | 7" × 7" | Case of 12 Tubs
The High-Tech Conversions FS-NT1-77.99 Free-Sat® is a pre-saturated nonwoven cleanroom wipe saturated with 99% isopropyl alcohol / 1% deionized water — the specification for ultra-low residue, fast-evaporation cleaning in electronics assembly, PCB handling, and residue-sensitive surface prep. Built on Nova-Tech 1000™ poly-cellulose fabric and sealed in nylon inner bags within re-sealable tubs, these wipes deliver consistent IPA concentration, extremely low extractables, and four clean-cut edges that eliminate loose fiber contamination common on perforated wipers. Rated for ISO Class 5–8 and USP <797>/<800> compliant.
Sold in cases of 12 tubs, 100 wipes per tub (1,200 wipes/case).
Specifications
| Part Number | FS-NT1-77.99 |
|---|---|
| Brand | High-Tech Conversions |
| Series | Free-Sat® |
| Fabric | Nova-Tech 1000™ — 55% Cellulose / 45% Polyester Nonwoven (Hydroentangled) |
| Saturation | 99% Isopropyl Alcohol / 1% Deionized Water |
| Wipe Size | 7" × 7" (17.8 cm × 17.8 cm) |
| Edge Type | Clean-Cut (4 clean edges) |
| Wipes per Tub | 100 |
| Tubs per Case | 12 |
| Total per Case | 1,200 wipes |
| Packaging | Wipes sealed in nylon bag inside re-sealable tub |
| ISO Classification | ISO Class 5–8 |
| Compliance | USP <797>, USP <800> |
| Traceability | Lot-to-lot packaging traceability |
Key Features
- 99% IPA saturation — ultra-low residue, fast evaporation; preferred for electronics, PCB, and optical surface cleaning where water residue is unacceptable
- Four clean-cut edges — eliminates loose fiber generation from perforated edges; lower particle contribution than standard roll-perforated wipes
- Nova-Tech 1000™ poly-cellulose fabric — hydroentangled blend of virgin polyester and cellulose; tough, absorbent, and abrasion resistant with extremely low extractables
- Nylon-bag sealed inner pack — prevents IPA evaporation and maintains saturation consistency throughout tub life
- One-hand tub design — open, dispense, and close with one hand
- USP <797> / <800> compliant — suitable for pharmaceutical and hazardous drug handling environments
- Lot-to-lot traceability — packaging supports GMP documentation requirements
Industries & Applications
- Electronics assembly — PCB cleaning, flux residue removal, solder paste wipe-down; 99% IPA leaves minimal residue on sensitive components
- Optics and photonics — lens housing and optical bench cleaning where water spots are unacceptable
- Semiconductor and disk drive — surface cleaning in ISO 5–7 environments requiring fast-drying IPA
- Pharmaceutical — USP <797>/<800> compliant surface disinfection where low-water IPA is specified
- Medical device manufacturing — equipment and surface wipe-downs requiring ultra-low residue
- Aerospace and automotive — controlled environment surface prep with fast-drying IPA
Documentation
Frequently Asked Questions
When should I use 99% IPA wipes instead of 70/30?
Use 99% IPA (FS-NT1-77.99) when fast evaporation and ultra-low residue are critical — primarily electronics assembly, PCB cleaning, optical surfaces, and semiconductor applications where water residue would cause damage or contamination. Use 70/30 IPA (FS-NT1-77) for surface disinfection where contact time matters and water residue is acceptable.
Are these wipes safe for use on PCBs and electronic assemblies?
Yes — 99% IPA is the standard solvent for electronics cleaning. The Nova-Tech 1000™ fabric has extremely low extractables, and the fast-evaporating 99% IPA leaves minimal residue on PCBs, connectors, and component housings. Avoid use on moisture-sensitive components or assemblies not rated for IPA exposure.
What ISO cleanroom class are FS-NT1-77.99 wipes rated for?
Rated for ISO Class 5–8. For ISO Class 3–5 critical environments requiring laundered polyester knit wipers, see the Berkshire MicroSeal 1200 or Teknipure TekniLight series.
Are Free-Sat 99% wipes USP <797>/<800> compliant?
Yes. The FS-NT1-77.99 meets USP <797> and USP <800> wipe requirements and supports lot-to-lot traceability for GMP documentation.
What is the difference between FS-NT1-77.99 and FS-ULT70-99.99?
Both are 99% IPA pre-saturated wipes. The FS-NT1-77.99 uses Nova-Tech 1000™ nonwoven poly-cellulose fabric (7"×7") suitable for ISO 5–8. The FS-ULT70-99.99 uses a 100% polyester knit fabric (9"×9") for higher-classification environments requiring lower particle generation and greater chemical resistance.
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