Water droplets beading on grey fabric finished with CK GUARD N-SERIES fluorine-free water repellent

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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
Water droplets resting on the surface of a treated fabric, showing durable water repellent performance

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 waterYes
Repels oil and greaseNo
Oily stain and soil resistanceNo
Fluorine contentNone
Oil and soil repellent rangeCK GUARD WR-SERIES (C6)
Medical, protective and firefighting textiles rely on oil and fluid resistance, so they are specified from the CK GUARD WR-SERIES only.

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
ChemistryFluorine-free (C0), with no PFAS
RepellencyWater
SubstratesCotton, cotton blends, polyester, nylon
CarrierWater-based or solvent-based, depending on grade
IonicityNonionic, cationic, anionic or weakly cationic, depending on grade
ApplicationPad–dry–cure for water-based grades; spray or coating for solvent-based grades
CombinationCan be combined with other finishing auxiliaries; compatibility confirmed per grade
Bath concentration, cure window, add-onVary by grade and substrate — given in the technical data sheet
DocumentationData sheet, safety data sheet and declaration support on request
A fluorine-free finish is more sensitive to process conditions — residual surfactants, bath compatibility and cure — than a fluorochemical one. The data sheet states the window for each grade.

Applications

Where water is the only thing to repel

CK GUARD N-SERIES sheds rain with no fluorochemistry to declare.

Hiker on a snowy ridge in a shell jacket finished with CK GUARD N-SERIES fluorine-free water repellent

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.

Activewear finished with CK GUARD N-SERIES PFC-free water repellent

No fluorochemistry

Sports and activewear

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

Water beading across a navy umbrella canopy, a tent and umbrella application for CK GUARD N-SERIES fluorine-free water repellent

Shed and dry

Tents and umbrellas

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

Rolled home textiles in bright colours, suited to CK GUARD N-SERIES PFC-free water repellent finishing

Water only

Curtains and home textiles

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

Cotton fabric finished with CK GUARD N-SERIES fluorine-free water repellent

Soft handle

Cotton and cotton blends

Casual wear and woven outerwear where the finish must not stiffen the hand.

Child in a printed yellow rain cape standing in a puddle, a baby and children's textile application for CK GUARD N-SERIES fluorine-free water repellent

Fluorine-free

Baby and children’s textiles

Children’s rainwear and outerwear, where a finish with no fluorochemistry to declare counts most.

Water droplets beading on dark technical fabric finished with a CK GUARD water repellent agent

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.

Water droplets on a navy technical jacket finished with CK GUARD WR-SERIES C6 water and oil repellent

Product enquiries

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