Superhydrophobic spray NeverWet enters US market in a $20 can
Two step spray coating makes fabrics, wood, metals and plastic waterproof
A spray on treatment that makes any object repel liquid has been launched in the US. This is NeverWet, a superhydrophobic coating that can be applied to nearly any surface.
Consumers can now buy the two cans (capable of treating 10 to 15 square feet) for $19.97 from Home Depot. Surfaces that the spray can be applied to include fabrics, wood, metal and plastics. The treatement consists of two coatings, each of which takes 30 minutes to dry.
NeverWet have not yet given official figures on how long the superhydrophobia will last in various situations, but claim that treatments have “remained under seawater for over a year and reemerged completely dry.”
Unfortunately, when the treatment is applied to glass it causes the surface to become frosted, though the company behind the product promise that a clear-drying version is in development.
A demonstration video (below) shows NeverWet in action, including waterproofing an iPhone (something that instructions for NeverWet explicitly warns against), a toilet brush, a t-shirt and a pair of shoes.
Superhydrophobic surfaces work by increasing the contact angle between water droplets and the surface by creating a low surface chemistry – essentially changing whether each individual droplet remains a ball when it rests on a surface, or whether it spreads out.
Hydrophilic surfaces (surfaces that soak up water) have a contact angle of less than 90 degrees. Hydrophobic surfaces have a contact angle of above 90 degrees, but superhydrophobic surfaces have a contact angle of above 150 degrees.
NeverWet coatings creating a contact angle of between 160 and 175 degrees (by comparison, the non-stick coating on a Teflon pan is a 95 degrees contact angle).
- 1 Humans of New York image of crying gay teen receives best response from Ellen DeGeneres
- 2 People all over the world are getting semicolon tattoos to draw attention to mental health
- 3 Greek debt crisis: Yanis Varoufakis's funniest (and most memorable) quotes
- 4 The biggest first date turnoff has been revealed
- 5 Swedish minister gives strongest case yet on why EU should stop turning away asylum seekers
Humans of New York image of crying gay teen receives best response from Ellen DeGeneres
Swedish minister gives strongest case yet on why EU should stop turning away asylum seekers
Man dies instantly after shooting firework from top of his head
Isis schoolgirl Amira Abase who fled London to join terrorists in Syria mocks victims of Tunisia massacre
Father faces deportation to Thailand after 27 years in Britain for two 'stupid crimes'
More Britons believe that multiculturalism makes the country worse - not better, says poll
Osborne to cap family benefits at £23,000 – announced ahead of his post-election Budget
Nathan Collier: Montana man inspired by same-sex marriage ruling requests right to wed two wives
Greece crisis: IMF was pushed around by Angela Merkel and Nicholas Sarkozy – and now it is being humiliated
Forget little green men – aliens will look like humans, says Cambridge University evolution expert
Girl, 7, stares down hate preacher at Ohio festival with pro-LGBT rainbow flag gesture
£35,000 - £40,000 based on experience : Metail Ltd: As a Business Development ...
£30 - 40k (DOE) + Bonus & Benefits: Guru Careers: A Product Manager / Product ...
£17000 - £27000 per annum: Recruitment Genius: The Company are looking for a S...
£16000 - £18000 per annum: Recruitment Genius: A 1st / 2nd Line Technical Anal...