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The easy to use, safe, 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. 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. 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.
Nikwax Cotton Proof is a safe product to use on cotton outerwear and equipment. It is WaterBased, non-flammable, contains no harmful volatile organic compounds (VOCs) and is fluorocarbon free. Additionally, some alternative products are designed for application to multiple fabric types, so are not cotton specific. They are often surface treatments which create a physical barrier to keep water out, but will also impair breathability.
Nikwax Cotton Proof has been specifically designed and optimised for cotton, polycotton and canvas, providing Durable Water Repellency (DWR) whilst maintaining breathability. Nikwax Cotton Proof requires no heat to develop its DWR, so it is not necessary to use a tumble drier for best results.