To improve your shopping experience today and in the future, this site uses cookies.
I Accept Cookies
Nikwax Cotton Proof 1L Adds Water-repellency, Revives Breathability Wash-in Paint or Spray Waterproofing Cotton, Polycotton, Canvas Prolongs Life
Nikwax Cotton Proof 1L Adds Water-repellency, Revives Breathability Wash-in Paint or Spray Waterproofing Cotton, Polycotton, Canvas Prolongs Life
Nikwax

Nikwax Cotton Proof 1L waterproofing for cotton polycotton canvas and tents

£19.49
Earn
in Customer Rewards when you buy this item today
Pre-Order

With Pre-Order, you can purchase the latest items added to our store in advance of them arriving with us.

Your Pre-Order is prioritised (at no additional charge); meaning that as soon as the product arrives with us, we can wrap it straight back up; ready for collection via Click & Collect or despatch to you — it often never even hits the stock room shelves!

Pre-Launch

With Pre-Launch, the date when we expect to receive the product ourselves is still a little too hazy to be confident in accepting Pre-Orders.

So, instead, you can submit your email address against the item you are interested in and we will email you as soon as stock arrives on the system.

Estimated Delivery & Collection Dates

Estimated Delivery & Collection Dates are given on Pre-Order and Pre-Launch products. They are for indication purposes only and can change at any time without notice.

The dates we provide are based on indications given by our suppliers. Whenever we get updated information from our suppliers we will endeavour to update the Estimated Delivery & Collection Dates provided on product pages.

We estimate this will be ready for despatch to you or collection via Click & Collect on Undetermined
Earn Rewards
When you purchase this item, you will earn of rewards points to spend on your next purchase from us. You can spend your Rewards balance in-store & online.

60 Day Returns

We are happy to accept returns of unused goods sold in store and shipped in the UK within 30 days of purchase. Please let us know they are coming back though!

To be eligible for a return, your item must be unused and in the same condition that you received it. It must also be in the original packaging. This is only for UK purchases.

If 30 days have gone by since your purchase, unfortunately we can’t offer you a refund. Up to 60 days after your purchase we now offer exchange for other goods or a voucher code to the value of the returned goods (to the original purchaser). Voucher codes are valid for 12 months.
If 60 days have gone by since your purchase, it is not eligible for return.

Several types of goods are exempt from being returned. Perishable goods such as food, flowers, newspapers or magazines cannot be returned. We also do not accept products that are intimate or sanitary goods, hazardous materials, or flammable liquids or gases.

Additional non-returnable items:

  • Gift cards
  • Downloadable software products
  • Some health and personal care items
  • Customised items or items we have ordered in especially for you.

To complete your return, we require a receipt or proof of purchase.

Please do not send your purchase back to the manufacturer.

There are certain situations where only partial refunds are granted: (if applicable)

  • Book with obvious signs of use
  • Any item not in its original condition, is damaged or missing parts for reasons not due to our error.
  • Any item without it's original tags and packaging.
  • Any item that is returned more than 30 days after delivery

Refunds (if applicable)

Once your return is received and inspected, we will send you an email to notify you that we have received your returned item. We will also notify you of the approval or rejection of your refund.

If you are approved, then your refund will be processed, and a credit will automatically be applied to your credit card or original method of payment, within a certain amount of days. Your refund includes standard rate shipping, not premium shipping services.

Late or missing refunds (if applicable)

If you haven’t received a refund yet, first check your bank account again. Then contact your credit card company, it may take some time before your refund is officially posted. Next contact your bank. There is often some processing time before a refund is posted.

If you’ve done all of this and you still have not received your refund yet, please contact us at [email protected].

Sale items (if applicable)

Sale items can be refunded on the same terms as other items.

Exchanges (if applicable)

We only replace items if they are defective or damaged. If you need to exchange it for the same item, send us an email at [email protected] and send your item to: 41 Castle Street, LLANGOLLEN, LL20 8RU, United Kingdom.

Gifts

If the item was marked as a gift when purchased and shipped directly to you, you’ll receive a gift credit for the value of your return. Once the returned item is received, a gift certificate will be mailed to you.

If the item wasn’t marked as a gift when purchased, or the gift giver had the order shipped to themselves to give to you later, we will send a refund to the gift giver and he will find out about your return.

Shipping

To return your product, you should mail your product to: 41 Castle Street, LLANGOLLEN, LL20 8RU, United Kingdom.

You will be responsible for paying for your own shipping costs for returning your item. Shipping costs are non-refundable. If you receive a refund, the cost of return shipping will be deducted from your refund.

The Post Office is often the most expensive service for sending parcels, a quick internet search will give you lots of options.

Depending on where you live, the time it may take for your exchanged product to reach you, may vary.

None of the above affect your statutory rights.

Christmas Delivery 2025

Please make sure you send your parcel in plenty of time if you wish for it to arrive in time for Christmas

These are the courier published dates, we can't guarantee them. We try and get orders out after the published deadlines, but it takes time to age verify for bladed items, if an adult with ID isn't in then Parcelforce or Royalmail cannot legally deliver.

Parcelforce - Not for bladed items.

  • Next day services: 20 December
  • Two-day services: 19 December

Royalmail

Tracked 48 20 December

Tracked 24 19 December

Tracked 48 Age Verified 19 December

Tracked 24 Age Verified 20 December

Special Delivery (up to 1kg only on system) 23 December

FREE Shipping starts at £80

Nikwax Cotton Proof 1L waterproofing for cotton polycotton canvas and tents

Brand:Nikwax

Code:NIK-2H3

Now the official Tentipi proofing recommendation along with Tent and Gear Solar Wash

Wash-in paint on or spray on waterproofing for cotton, polycotton and canvas

Adds water-repellency and revives breathability

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 PFAS 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
  • Enhances the performance of your gear, keeping you warmer and drier
  • Recommended for all cotton and polycotton clothing and gear



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 fiber; 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 fibers, 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.

Cotton outerwear and equipment are ideal for people who need hardwearing items…

Nikwax Cotton Proofis a must have for people who enjoy outdoor pursuits. Whether you have a fisherman’s smock, a cotton or polycotton jacket or a canvas tent, it will provide Durable Water Repellency (DWR) to prevent water absorption and weight gain.

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 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.

Suitable for
  • Jackets Icon
  • Rucksacks Icon
  • Tents Icon
  • Trousers Icon


Recommended for cotton, polycotton and canvas clothing and equipment.

How to use:
  • Brush On Icon
  • Hand Wash Icon
  • Machine Wash Icon
  • Sponge On Icon

IMPORTANT: Shake bottle before use. Do not use conventional detergents. Always clean first with Nikwax® Tech Wash® in a separate wash cycle. For equipment use Nikwax® Tent & Gear
Solar Wash®
Machine Wash:
1. Remove all detergent build-up from the detergent dispenser.
2. Place maximum of 3 clean garments in washing machine.
3. Add 50ml for 1 item, 100ml for 2 items and 150ml for 3 items.
4. Run a 30°C synthetic cycle on a slow spin.
Drying:
Air dry or tumble dry on a low setting if care label allows.

Volume guide for tents & equipment:

1. Erect tent OR protect working surface and lay clean item flat.
Add 1 part product to 9 parts water and mix well.
2. Use approximately 50ml of product, prior to dilution, per 3 m*
3. Apply diluted product evenly to outside of wet or dry fabric with a brush or sponge. For large items apply in sections.
4. Ensure product penetrates fabric curfare and spread any run
5. Check carefully to ensure no areas have been missed.
with a damp cloth.
6. After several minutes check for and remove surplus product with a damp cloth.

Allow to dry before packing or storing


07/26
Sizing Information
Professional Opinion
Question(s) answered about Nikwax Cotton Proof 1L waterproofing for cotton polycotton canvas and tents
Ask a question
Question(s) asked regarding Nikwax Cotton Proof 1L waterproofing for cotton polycotton canvas and tents

Ask a question

Your name
Your email address
Your phone number
Your question
Submit Question  Close
Product Reviews
Home Care and Repair Clothing & Accessories Nikwax Cleaning & Proofing