
Home › Water Repellents › C0 Fluorine-Free Repellent
CK GUARD N-SERIES
C0 Fluorine-Free Water Repellent
No fluorochemistry of any kind — a water repellent finish for mills working toward PFC-free targets.
What it is
Water repellency without fluorine
CK GUARD N-SERIES is a fluorine-free (C0) water repellent. There is no fluorochemistry in the formulation at all — not a shortened chain, not a reduced content. Because nothing in it is fluorinated, there is no PFAS in it either. For a brand that has committed to removing PFCs from its supply chain, that is the distinction that matters.
It is a water repellent. It does not repel oil or greasy soil, and we do not position it where a specification asks for those.
- Completely free of fluorochemistry, and so of PFAS
- Water repellency on cotton, blends and synthetics
- Supports PFC-free and PFAS-free targets under programmes such as ZDHC and bluesign
- Runs on conventional pad–dry–cure lines
- Documentation for REACH and ZDHC declarations on request

Being precise about it
What a fluorine-free finish can and cannot do
Oil repellency is a function of fluorochemistry. We would rather say so plainly than have a finish fail your buyer’s test.
| CK GUARD N-SERIES | |
|---|---|
| Repels water | Yes |
| Repels oil and grease | No |
| Oily stain and soil resistance | No |
| Fluorine content | None |
| Oil and soil repellent range | CK GUARD WR-SERIES (C6) |
The N-SERIES is not the only fluorine-free route we make. Wax and silicone water repellents sit with our finishing agents rather than under the CK GUARD name.
Substrates and process
Where it runs
| CK GUARD N-SERIES | |
|---|---|
| Chemistry | Fluorine-free (C0), with no PFAS |
| Repellency | Water |
| Substrates | Cotton, cotton blends, polyester, nylon |
| Carrier | Water-based or solvent-based, depending on grade |
| Ionicity | Nonionic, cationic, anionic or weakly cationic, depending on grade |
| Application | Pad–dry–cure for water-based grades; spray or coating for solvent-based grades |
| Combination | Can be combined with other finishing auxiliaries; compatibility confirmed per grade |
| Bath concentration, cure window, add-on | Vary by grade and substrate — given in the technical data sheet |
| Documentation | Data sheet, safety data sheet and declaration support on request |
Applications
Where water is the only thing to repel
CK GUARD N-SERIES sheds rain with no fluorochemistry to declare.

PFC-free spec
Rainwear and outdoor
Shells and insulated layers for outdoor brands running a PFC-free specification, where the finish has to shed rain with no fluorochemistry to declare.

No fluorochemistry
Sports and activewear
Light weather protection on knits and wovens, with no fluorochemistry in the supply chain.

Shed and dry
Tents and umbrellas
Canopy and awning fabrics that must shed rain and dry out between one use and the next.

Water only
Curtains and home textiles
Curtains, sheers, cushion covers and table linen that only have to turn away water.

Soft handle
Cotton and cotton blends
Casual wear and woven outerwear where the finish must not stiffen the hand.

Fluorine-free
Baby and children’s textiles
Children’s rainwear and outerwear, where a finish with no fluorochemistry to declare counts most.

Consistency is the point
Every production batch of CK GUARD N-SERIES is inspected against its specification before release, so the recipe you validate is the one that arrives next time.
Also from CHEM KARIS
CK GUARD WR-SERIES
Our C6 range: free of PFOA and PFOS, and able to repel water, oil and soil.

Product enquiries
For any enquiry about our products, click Contact Us. Our technical team will reply.

