Group No.4 Oil & water repellent
① Oil-and-water-repellent coating
■What is an oil-and-water-repellent coating?
An oil-and-water-repellent coating is a coating film that uses our original technology and has high repellency. Droplets run off the surface of the coating quickly. It does not allow droplets to rest on the surface.
■Main features
The oil-water-repellent coating has an excellent property to repel droplets, prevents adhesion of water and oil, and maintains water and oil repellency at high temperatures.
Comaparison of the engine oil droplet
slip characteristics
Comparative data of the contact angle
② Super-water-repellent coating
■What is a super-water-repellent coating?
A super-water-repellent coating uses special raw material and has a microscopic structure on its surface. A contact angle between the coating and a droplet is so large (approximately 150°) that droplets are repelled, do not stay, and run off the surface.
■Main features
The coating gives an excellent property to repel droplets to the surface of a base material.
Since the coating can be created at low temperatures, it is applicable to various kinds of base materials.
Droplet(Normal)
Droplet on the Super-water-repellent coating
③ Ultra-hydrophobic coating
■What is an ultra-hydrophobic coating?
An ultra-hydrophobic coating has a special surface effect to increase a contact angle. Owing to a large angle of contact, droplets take a spherical shape and run off smoothly.
■Main features
The repelled droplets maintain the spherical shape while they are running off and do not run on the surface.
Comaparison of the water droplet
slip characteristics
Contact angle of the droplet
on the Ultra-hydrophobic coating film
④ Hydrophilic coating film
■What is a hydrophilic coating film?
A hydrophilic coating film has an affinity for water. An angle of contact between a waterdrop and the film is very small.
■Main features
Since the contact angle between the film and waterdrops is extremely small, waterdrops run on the surfaces of a part coated with the film.
Appearance of hydrophilic coating film
Droplet on the hydrophilic coating film
⑤ Transparent water repellent film
■What is TRANSPARENT WATER REPELLENT FILM?
Transparent water repellent film is an antifouling film that reduces soil left on the surface of a base material, such as fingerprints. Therefore, the soil is easily wiped off.
■Main features
Transparent water repellent film is a highly transparent film that gives water repellency and oil repellency to the surface of a base material. Since this film cures at normal temperatures, it can be applied to material with low heat resistance.
Applicable materials: Acrylic resin, resins used for personal computers,
glass, and other materials
Water repellency of transparent water repellent film
Soil resistance to oil-based ink
Introduction video of LUBICK series and explanation of how to use
* There is narration in the explanation video.
If you cannot see the video, please see it directly from the site at the following URL.
