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Nikwax Cotton Proof Wash-In Waterproofing 300ml

Wash In waterproofing for Cotton, Polycotton & Canvas Clothing and equipment.

Availability: In stock

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... (Read More) Wash-in waterproofing for cotton, polycotton and canvas.

Adds water-repellency and revives breathability


- Adds water repellency to cotton and polycotton and maintains breathability.

- Prolongs the life of gear and optimises performance in wet weather.

- Easy to apply - can be used in a washing machine or by hand, no tumble drying required.

- Can be used on wet fabric.

- Inhibits rotting of canvas caused by dampness.

- Will not affect cosmetic appearance.

- WaterBased - environmentally friendly, biodegradable, non flammable, non hazardous.

- Does not contain fluorocarbons.

- Guaranteed performance for 4 years from manufacturer.

Ideal for:

- Cotton clothing and equipment such as tents
- Polycotton clothing and equipment
- Canvas equipment

How to apply:


- Place clean item in a washing machine.

- Apply Nikwax Cotton Proof in the machine"s dispenser.

- Select a cotton wash cycle, start machine and complete rinse cycle.

- Alternatively, just apply Nikwax in a simple hand wash.

- Drip-dry or tumble dry on a low setting if the care label allows.

FOR EQUIPMENT eg. tents -

- Erect tent.

- Paint solution onto the outside of the fabric.

- Work solution in with a brush and spread evenly.

- Clean off with water and allow to dry before packing or storing.

Volume guide:

To proof clothing, use 2 full caps (100 ml) for 1 item and 3 full caps (150 ml) for 2-3 items.

For dry cotton tents, dilute with 6 parts warm water (1:6) and for wet cotton tents dilute with only 2 parts warm water (1:2).

When to apply:

Apply this product to used cotton, polycotton or canvas to keep items in water-repellent condition.

Remember to clean gear first with Nikwax Tech Wash before applying Nikwax Cotton Proof (you don"t have to wait for items to dry between cleaning and proofing).


We advise using the Nikwax Tech -Wash before using this product; see our other items.

We offer FREE GLOBAL DELIVERY on all orders over £40.

On top of this we offer free and easy UK returns. You have 21 days to return your purchase if necessary.

For further delivery and return information please see here: Delivery and Returns

For all product enquiries call (UK) 08435 077 007 or email us on