Nikwax: How to Reproof Waterproof Jackets
In brief: Nikwax is a British manufacturer of water-based aftercare products for outdoor clothing, footwear, and equipment. It pioneered PFAS-free water repellent treatments before environmental legislation mandated alternatives, making it a sustainable choice for maintaining the performance and longevity of your gear.
What is Nikwax?
Nikwax is a British company founded in 1977 by Nick Brown, specialising in high-performance, water-based aftercare products for waterproof and water-resistant textiles, footwear, and equipment. A key distinguishing factor of Nikwax is its long-standing commitment to developing PFAS-free (fluorocarbon-free) water repellent treatments, a pioneering stance taken long before environmental concerns led to widespread industry adoption of such alternatives. Unlike many traditional waterproofing methods that relied on fluorocarbons, Nikwax products are formulated to be water-based, non-flammable, and free from volatile organic compounds (VOCs), offering a more environmentally conscious solution for maintaining the water repellency and breathability of outdoor gear.
How Nikwax works
Nikwax products work by applying a flexible, elastic, and water-repellent treatment to the individual fibres of a fabric or material. This treatment forms a network of microscopic polymers that do not seal the fabric, but instead allow moisture vapour to pass through while repelling liquid water. The active ingredient, typically an elastomeric polymer, bonds to the fibres without creating a continuous film, thus preserving the material's breathability. This approach ensures that water beads up and rolls off the surface, preventing saturation and maintaining the garment's original performance characteristics, including its ability to wick away internal moisture. The water-based formulation allows for easy application, often in a washing machine or via a spray-on method.
Key characteristics
Nikwax treatments are defined by their effective water repellency, ensuring that water beads on the surface of treated items, preventing saturation and maintaining breathability. They are designed to be durable, bonding effectively to fibres to provide lasting protection through multiple washes and uses. The water-based nature of the products means they are easy to apply and gentle on materials, preserving the original feel and flexibility of fabrics without stiffening or altering their texture. Furthermore, their PFAS-free composition highlights a strong environmental profile.
Comparison table
| Attribute | Nikwax | Scotchgard | Grangers |
|---|---|---|---|
| Primary Repellent Chemistry | PFAS-free (water-based) | PFAS-based (fluorocarbon) | Silicone-based |
| Application Method | Wash-in or spray-on | Spray-on or factory applied | Spray-on |
| Environmental Impact | Low, water-based, biodegradable | Higher, persistent chemicals | Variable, often solvent-based |
| Effect on Breathability | Maintains original breathability | Maintains original breathability | Can reduce breathability |
| Best Use Case | Aftercare for DWR garments | Initial factory DWR, some aftercare | Tents, tarpaulins, non-breathable items |
Who is Nikwax best for?
Nikwax is best suited for anyone looking to restore or enhance the water repellency of their outdoor clothing, footwear, and equipment while prioritising environmental responsibility. It is ideal for hikers, climbers, cyclists, and general outdoor enthusiasts whose gear, such as waterproof jackets, trousers, and walking boots, has lost its original DWR (Durable Water Repellent) finish. Its wash-in and spray-on applications make it versatile for various fabric types and constructions. Nikwax is particularly beneficial for those with a strong preference for PFAS-free products and for maintaining the breathability of technical garments in diverse climates, from damp British hills to drier mountain environments. It offers a cost-effective way to extend the lifespan of existing gear.
Care and longevity
To maximise the longevity and effectiveness of Nikwax treatments, proper care is essential. Always clean items thoroughly before applying Nikwax, as dirt and residues can hinder the treatment's bonding. Follow the specific instructions for each Nikwax product; wash-in treatments are best applied in a washing machine, while spray-on products require an even application to the exterior. Air drying is often recommended, sometimes with a gentle tumble dry to activate the DWR. Avoid using conventional detergents or fabric softeners on treated items, as these can strip away the water repellency. Storing treated gear clean and dry, away from direct sunlight, will further extend its lifespan and maintain its performance. Common mistakes include not cleaning items first or using too much product.
Common questions
Can Nikwax make anything waterproof?
Nikwax is designed to restore and enhance the water repellency of fabrics and materials that are inherently water-resistant or breathable waterproof. It does not make non-waterproof items, such as cotton t-shirts, fully waterproof. Instead, it re-establishes the DWR finish on technical fabrics, causing water to bead off the surface and preventing saturation, which is crucial for maintaining the garment's original performance and breathability.
How long does nikwax waterproofing last?
The duration of Nikwax waterproofing depends on several factors, including the type of fabric, frequency of use, and exposure to abrasion and dirt. Generally, a Nikwax treatment can last for several washes and extended periods of use. Regular cleaning with Nikwax Tech Wash and re-treatment with a Nikwax DWR product will help maintain optimal performance. Heavy use and harsh conditions will naturally require more frequent re-application.
Is Nikwax better than gore-tex?
Nikwax and Gore-Tex serve different, complementary functions. Gore-Tex is a waterproof, breathable membrane incorporated into a fabric during manufacturing, providing the primary barrier against water penetration. Nikwax, on the other hand, is an aftercare product designed to restore the Durable Water Repellent (DWR) finish on the outer fabric of a Gore-Tex garment. A functional DWR, maintained by Nikwax, is essential for Gore-Tex to breathe effectively, as a saturated outer fabric hinders the membrane's ability to transfer moisture vapour.
Can I use Nikwax on boots?
Yes, Nikwax offers specific products formulated for footwear, including walking boots made from leather, suede, nubuck, and fabric. These treatments are designed to restore water repellency and condition the materials, helping to maintain the boots' comfort and extend their lifespan. Always select the appropriate Nikwax product for your boot material, such as Nikwax Leather Wax for full-grain leather or Nikwax Fabric and Leather Proof for mixed-material boots, and follow the application instructions carefully.
Nikwax at OD's Designer Clothing
At OD's Designer Clothing, we stock a curated selection of Nikwax aftercare products to help you maintain the performance and longevity of your premium outdoor garments and footwear. Explore our range to keep your gear in top condition. Shop Nikwax here.