Nikwax Cotton Proof 300ml
🎁 Free Delivery to Most UK Addresses
Why is it Clearance?
This item may possess imperfections or blemishes. For a comprehensive understanding, we encourage you to carefully review the detailed product description and examine the accompanying photographs, which outline any specific issues related to this product. If no specific concerns are mentioned, it can generally be assumed that the item is in good condition with potential damage confined only to the outer packaging.
PLEASE NOTE THAT THIS ITEM CANNOT BE RETURNED AND THERE IS NO WARRANTY..
Nikwax Cotton Proof 300ml is selling fast, but fresh stock is on the way! Order now to secure yours for delivery week commencing 21st July
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Clearance item – Best Before: 06/2024
-Wash-in waterproofing treatment for cotton, canvas, and polycotton fabrics.
-Adds long-lasting water repellency while preserving breathability.
-Improves performance in damp or rainy conditions.
-Simple, safe, and effective wash-in formula—ideal for larger loads or frequent use.
-PFC-free, non-flammable, water-based, and biodegradable.
-Generous 300ml bottle—treats multiple garments or larger items like canvas covers.
FAQS
What is this product used for?
Nikwax Cotton Proof is designed to add water-repellent protection to:
- Cotton clothing and jackets
- Canvas trousers or coats
- Polycotton workwear or uniforms
- Canvas rucksacks and bags
- Tent cotton panels, covers, or tarps
- Hammocks made from natural or blended fabrics (see more below)
It helps fabric shed rain, resist moisture build-up, and dry faster while maintaining breathability and softness.
How do I use the product?
Machine Wash:
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Clean your item first with Nikwax Tech Wash or mild detergent.
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Leave the damp item in the drum.
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Add 100ml for one garment, or 150ml for two, into the detergent drawer.
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Run a 30°C synthetic cycle with a slow spin.
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Air dry or tumble dry if the fabric label allows.
Hand Wash:
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Fill a basin with 6L of warm water.
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Add 50ml per garment and mix.
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Submerge and agitate the garment thoroughly.
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Let soak for 5–10 minutes, then rinse with clean water.
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Hang to dry completely before storage or use.
How do I store the product?
- Store upright in a cool, dry place.
- Do not freeze or expose to high heat.
- Keep the cap closed tightly to prevent evaporation.
- Keep out of reach of children and pets.
Can I use this on a hammock?
✅ Yes – for the right fabric types.
Recommended for:
- Canvas hammocks – Cotton Proof works well on heavyweight woven materials, adding water repellency and helping prevent dampness.
- Polycotton hammocks – Provides moderate water resistance, though effectiveness may vary based on blend.
⚠️ Not suitable for synthetic hammocks such as ripstop nylon or parachute silk. For those, use Nikwax Tent & Gear SolarProof instead, which is specifically designed for synthetic fabrics.
💡 Always test on a discreet area of the hammock first to ensure there’s no color change or uneven absorption, especially with hand-dyed or dark fabrics.
Free Express UK Delivery (orders received before Noon)
At Simply Hammocks, we offer Free Express Delivery (97% arrive the next working day) on UK orders. There is no minimum spend so it's free even if you are ordering a large hammock or small fixing. All orders are sent through our Express Service as standard, and 97% will arrive the next working day if placed before noon.
The 3% don't usually arrive within 2 working days of ordering. Not bad for a free service, hey! Where the next-day service is not available, you will see a delivery estimate on the product page before you order and on the checkout.
International Delivery
We are happy to deliver your hammock outside of the UK. Please click here for more information or call us on 01748 471 299 to get a competitive quote.
Where’s My Hammock?
To help cut down on packaging and reduce our postage footprint, we pack your hammock inside the box with your stand. This way, there’s less waste and less for your recycling bin. So, if you’ve bought a hammock and stand together and think your hammock might be missing, take a peek inside the stand’s box before giving us a call.
Payment & Security
Payment methods
Your payment information is processed securely. We do not store credit card details nor have access to your credit card information.

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