Tech Wash The No.1 easy to use, safe, high performance cleaner for wet weather clothing and equipment. Cleans effectively, reviving breathability and water repellency. How Nikwax Tech Wash maintains your gear. Nikwax Tech Wash is the market leader; it has been specifically designed and optimised for breathable waterproof fabrics. Nikwax Tech Wash is a highly effective cleaner. Additionally, it will revitalise existing Durable Water Repellency (DWR) and revive breathability. It is the safe way to thoroughly clean your waterproof clothing and equipment. Application in a washing machine is quick, easy, and ensures that the whole garment is thoroughly cleaned. Like all Nikwax products, Nikwax Tech Wash is safe to use Nikwax takes great care to minimise the effect of Nikwax products on the environment and on you, the consumer. Nikwax avoids materials in its cleaners like palm oil, which may be sourced from unsustainable plantations. Nikwax Tech Wash is environmentally friendly; it is non-hazardous, water-based and biodegradable.