Cotton Proof

High performance waterproofer designed to enhance the performance of wet weather cotton and polycotton items. Easy to use in the washing machine or by hand, non flammable and PFC free.

For waterproofing cotton.
  • Easy to use wash-in waterproofing for all cotton, polycotton, canvas clothing and equipment

  • Adds water repellency, revives breathability and reduces water absorbency without tumble drying

  • Enhances the performance of your gear, keeping you warmer and drier

  • Recommended for all cotton and polycotton clothing and gear

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Suitable for:
How to use:

The easy to use, high performance, wash in waterproofing for cotton, polycotton and canvas.

Adds Durable Water Repellency; reducing weight gain and maintaining the breathability of cotton, polycotton and canvas, in wet weather.

Why cotton is such a commonly used material...

Cotton is a natural fibre; as such, it is renewable, biodegradable and can be produced organically. It is highly versatile and can be used to produce many fabrics, each with different properties. Additionally, cotton can be blended with synthetic fibres, such as polyester, to combine the desirable properties of both materials.

Cotton fabrics are breathable, absorbent and strong. They are used in the manufacture of clothing and outdoor equipment, but are not inherently water repellent.

Once cotton gets wet, it stays wet...

Cotton is highly absorbent and retains water, so it takes a long time to dry once wet. Therefore, it is important to ensure that cotton outer garments and equipment don’t absorb water, as this will cause them to increase in weight and will impair their breathability.

To prevent cotton fabrics from absorbing water Durable Water Repellency (DWR) can be added by applying Nikwax Cotton Proof.

Use Nikwax Cotton Proof when your cotton items soak up water...

Your cotton items could be soaking up water just because they are dirty. First, try cleaning them with Nikwax Tech Wash®, and if they are fairly new, or recently re-waterproofed, the Durable Water Repellency (DWR) will be revitalised just from cleaning. But once items have been thoroughly used, you will need to add DWR using Nikwax Cotton Proof, after cleaning first with Nikwax Tech Wash®.

How to use...

Nikwax Cotton Proof has been specifically designed and optimised for cotton, polycotton and canvas, to provide Durable Water Repellency (DWR) whilst maintaining breathability. If your item is made of waxed cotton make sure you use Nikwax Wax Cotton Proof for best results.

How Nikwax Cotton Proof protects...

Nikwax Cotton Proof™ has been specifically designed and optimised for breathable cotton, polycotton and canvas materials; it leaves a flexible water repellent treatment on individual fibres allowing moisture vapour to pass through, maintaining breathability, prolonging the life of gear and optimising performance in wet weather.

washing machineUse Nikwax Cotton Proof in a washing machine...

For best results always clean item(s) first with Nikwax Tech Wash in a separate wash cycle. No need to dry item(s) before waterproofing. Shake well before use. Follow care label instructions.

  1. Remove all detergent build-up from the detergent dispenser.
  2. Place clean item(s) in washing machine (maximum 3 items).
  3. Use 50ml for 1 item, 100ml for 2 items and 150ml for 3 items.
  4. Wash according to care label.

Air dry or tumble dry on a low setting if care label allows.

To maintain waterproofing always wash with Nikwax Tech Wash. Do not use detergents.

By handNikwax Cotton Proof can be applied by hand...

For best results always clean item(s) first with Nikwax Tech Wash. No need to dry item(s) before waterproofing. Shake well before use. Follow care label instructions.

Use gloves

  1. Immerse clean item(s) in 6L hand-hot water in sink or bowl.
  2. Use 50ml for 1 item and 100ml for 2 items.
  3. Agitate to mix, leave to soak for 5 minutes, then agitate thoroughly.
  4. Rinse with cold water until water runs clear.

Air dry or tumble dry on a low setting if care label allows.

To maintain waterproofing always wash with Nikwax Tech Wash. Do not use detergents.

By handDilute Nikwax Cotton Proof before use on tents...

For best results always clean tent(s) first with Nikwax SolarWash®. No need to dry item(s) before waterproofing. Shake well before use.

Use gloves

  1. Erect tent OR protect working surface and lay clean item flat.
  2. Add 1 part product to 9 parts water and mix well*.
  3. Apply diluted product evenly to outside of wet or dry fabric with a brush or sponge (ensure product penetrates fabric surface). For large items apply in sections.
  4. As you treat the fabric, remove any surplus product with a damp cloth.
  5. Check carefully to ensure no areas have been missed.
  6. After several minutes check for and remove surplus product with a damp cloth**.

*Use approximately 50ml of product, prior to dilution, per 3m² of fabric. The coverage is approximate and depends on the condition of the fabric being treated.

**Marks may appear on fabric if excess product is not wiped away. Test on a hidden area first.

Durable Water Repellency (DWR) will develop once the fabric is dry. Allow item(s) to dry fully before packing away.

To maintain waterproofing always clean with Nikwax SolarWash®. Do not use detergents.

To waterproof synthetic tents use Nikwax Tent & Gear SolarProof®.

Tech Wash

Tech Wash

Market leading cleaner designed to revitalise water repellency and breathability of waterproof gear. Easy to use in your washing machine or by hand.

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