Advanced Protective Coatings
Superhydrophobic
NEI Products › Protective Coatings › Superhydrophobic Coatings
Superhydrophobic & Hydrophobic Coatings
Hydrophobic and superhydrophobic coatings are specialized surface treatments designed to repel water. These coatings achieve this remarkable property by creating a surface with an extremely high contact angle with water droplets, causing the water to bead up and roll off easily. This inherent water repellency makes them incredibly useful for a wide range of applications, from protecting surfaces against moisture damage and corrosion to enabling self-cleaning properties and reducing drag.
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Protect a wide array of substrates—from plastics and metals to glass, fabrics, and 3D printed parts—with NEI’s durable hydrophobic and superhydrophobic liquid repellent coatings. These coatings offer significant advantages for industrial condensers, notably surface condensers in power plants, and can also provide anti-fouling and easy-to-clean surfaces for metallic consumer goods such as kitchen appliances, shower heads, and handrails.
NANOMYTE® Product Lines
NEI’s Superhydrophobic and Hydrophobic coatings come in three different formulations:
- NANOMYTE® SuperCN – Thermally cured, durable, transparent, highly hydrophobic coating
- NANOMYTE® SuperCN Plus – Thermally cured, single-component superhydrophobic coating
- NANOMYTE® WaterOFF! – Durable, fully transparent, water repellent glass surface treatment
Select a tab below to learn more about each coating, download technical sheets, or request a quote.
NANOMYTE® SuperCN
NANOMYTE® SuperCN
SuperCNTM is a durable, highly hydrophobic coating originally designed for metal surfaces, but can also be used on a variety of other surfaces, including plastics, glass, painted surfaces, and fabrics. The patent-pending coating has a unique combination of properties that includes hydrophobicity and oleophobicity, with specifically good adhesion to stainless steel, superior abrasion, and erosion resistance. While the coating was originally developed for promoting dropwise condensation on stainless steel condenser tubes to enhance heat transfer efficiency, it can also be used to impart anti-fouling and easy-to-clean properties to other metallic surfaces, such as brass and titanium.
NANOMYTE® SuperCN is a two-part coating solution and can be applied by dipping, flowing, spinning, rolling, spraying, gravure and reverse gravure. For applications where a primer is necessary (such as polymer substrates), NEI supplies a primer product – NANOMYTE® SR-Primer – which works well with a range of plastics.
Physical Characteristics:
- Product Form: Two-part liquid coating solutions
- Color: Part A – Translucent; Part B – colorless
- Mix Ratio (A:B): 3:1 (by weight)
- Viscosity (20 °C): 5 – 15 cP (mixed)
Technical Data:
- Contact Angle on Fully Cured Film: 105 – 115° (water); 60-70° (hexadecane
- Abrasion Resistance (ASTM D1044): Δ Haze < 2% (polycarbonate substrate, CS-10F wheels, 500g load, 500 cycles)
- UV Resistance: No visual damage after 200 hours of dry QUV test – 1.5 W/m2 @ 340 nm, 55ºC
- Curing Temperature: 85°C (minimum recommended)
- Cured Film Thickness: 1 – 10 µm (min / max recommended)
- Coverage: 400 – 600 ft2/L (theoretical @ 3µm DFT)
Surface Preparation / Primer Application:
Ensure surfaces to be coated are clean and dry – the surfaces should be water-break free before coating application. The coating can be applied with or without the use of a primer depending on the substrate. NEI supplies a primer product, NANOMYTE® SR-Primer, which works well with a range of plastics. The primer may be applied by dipping, flowing, spinning, rolling or spraying.
For spray application of the primer, an HVLP spray gun with a nozzle size of < 1.0 mm is recommended, and the pressure should be set at approximately 25 to 30 psi. The primed parts should then be dried at 70ºC for 10 min before application of NANOMYTE® SuperCN.
Coating Application:
It is recommended that coating application be performed in a clean environment to minimize surface defects. To make the coating solution, in a dust-free container combine Part A and Part B using the following ratio: 3:1 (A:B) in weigth. Mix well by stirring briefly (avoid vigorous stirring to minimize foam formation). The coating may be applied immediately after mixing by dipping, flowing, spinning, rolling or spraying.
For spray application of the coating, an HVLP spray gun with a nozzle size of < 1.0 mm is recommended, and the pressure should be set to approximately 25 to 30 psi. For best coating performance, use the coating solution within 24 hours after mixing, or store the mixed solution in a freezer for later use. If stored in freezer, warm the solution up to room temperature before application.
Curing Conditions:
NANOMYTE® SuperCN is thermally cured at an elevated temperature. Recommended curing conditions:
- PMMA: 4 hours at 85°C
- Polycarbonate: 1 hour at 120°C
- Other: 30 minutes at 150°C (for substrates that can withstand high temperatures)
Shorter cure times / reduced temperatures may also be used depending on surface properties and performance requirements;
test samples for desired performance when deviating from recommendations.
For complete specifications and application instructions, please refer to the Technical Data Sheet.
Precautions for Safe Handling:
Appropriate personal protective equipment should be used at all times. Avoid contact with eyes, skin and clothing. Provide good ventilation or extraction and avoid prolonged or repeated breathing of vapor. Keep away from heat, sparks, flames and other sources of ignition. Wash hands thoroughly after handling.
For complete safety information, refer to the Safety Data Sheet (Part A) ♦ (Part B)
NANOMYTE® SuperCN Plus
NANOMYTE® SuperCN Plus
NANOMYTE® SuperCN Plus is a single component coating engineered to impart superhydrophobic properties to underlying substrates, offering greater abrasion resistance than competing superhydrophobic coatings. It makes surfaces instantly water-repellent and self-drying across a variety of materials, such as plastics, metals, glass, painted surfaces, & fabrics.
The superhydrophobic coating solution can be applied by dipping, flowing, spinning, rolling, or spraying. For applications where a primer is necessary (such as polymer substrates), NEI supplies a primer product – NANOMYTE® SR-Primer – which works well with a range of plastics.
Physical Characteristics:
- Product Form: One-part liquid coating solution
- Color: Milky White
Technical Data:
- Viscosity (20 °C): 5 – 30 cP
- Contact Angle: > 150º water droplet (fully cured coating)
- Curing Temperature: 85°C (minimum recommended)
- Cured Film Thickness: 5 – 20 µm (min / max recommended)
- Coverage: 700 – 1,000 ft2 per gallon
- Shelf Life: 1 year (storage below 40°C / 104°F)
Surface Preparation & Primer Application:
Ensure surfaces to be coated are clean and dry – the surfaces should be water-break free before coating application. The coating can be applied with or without the use of a primer depending on the activation state of the substrate. NEI supplies a primer product, NANOMYTE® SR-Primer, which works well with a range of plastics. The primer may be applied by dipping, flowing, spinning, rolling or spraying.
For spray application of the primer, a High Volume Low Pressure (HVLP) spray gun with a nozzle size of < 1.0 mm is recommended, and the pressure should be set at approximately 25 to 30 psi. A single pass of spraying is recommended for the primer. The primed parts should then be air dried (in ambient conditions) for 20 to 30 minutes before applying NANOMYTE® SuperCN Plus.
Spray Coating Application:
Personal protective equipment should be worn at all times. Review the SDS and all safety precautions before using.
It is recommended that the coating be applied with an HVLP spray gun or an air brush in a well-ventilated spray booth. Shake the solution to mix well before applying the coating. For the HVLP spray gun, we recommend using a nozzle size of less than 1.0 mm, and the pressure should be set at approximately 25 to 30 psi. Apply one or two uniform coats (no drying in between) to achieve a superhydrophobic surface.
Curing Conditions:
NANOMYTE® SuperCN Plus is thermally cured at an elevated temperature. Recommended curing conditions:
- PMMA: 2 hours at 85°C
- Polycarbonate: 1 hour at 120°C
- Other: 30 minutes at 150°C (for substrates that can withstand high temperatures)
Shorter cure times / reduced temperatures may also be used depending on surface properties and performance requirements;
test samples for desired performance when deviating from recommendations.
For complete specifications and instructions, please refer to the Technical Data Sheet.
Precautions for Safe Handling:
Appropriate personal protective equipment should be used at all times. Avoid contact with eyes, skin and clothing. Provide good ventilation or extraction and avoid prolonged or repeated breathing of vapor. Keep away from heat, sparks, flames and other sources of ignition. Wash hands thoroughly after handling.
For complete safety information, refer to the Safety Data Sheet
NANOMYTE® WaterOFF!
NANOMYTE® WaterOFF!TM
WaterOFF!TM is an engineered coating that provides a durable water-repelling surface on glass. WaterOFF! treated glass repels rain, snow, and sleet for drastically improved visibility. The treated glass enables easy removal of ice, salt, mud, dirt and bugs. When used on automotive windshields, the product can minimize the use of wipers in heavy rain and high-speed driving conditions. The key differentiation between WaterOFF! and other surface coatings is that it is highly durable and can withstand abrasion, erosion, ultraviolet radiation, and chemicals for a much longer period of time. The product is equally applicable for both OEM and aftermarket.
Physical Characteristics:
- Product Form: One-part liquid coating solution
- Color: Colorless
Available Quantities:
- 4-oz Spray Bottle
- 1-gallon jug refills
Technical Data:
- Water Contact Angles: Static: 100 – 105°; Advancing: > 102°; Receding: > 98°
- Transparency: Fully transparent with no optical distortion transmittance > 98%
- Mechanical and Solvent Resistance: Withstands in excess of 200 rubs with solvent-soaked cotton cloth
(solvents: acetone, MEK, xylene) - UV Resistance: Static water contact angle >98° after 1000 hours of QUV exposure (1.5 W/m2 @ 340 nm, 60°C)
- Durability: No degradation in 6 months (covering a spring and a summer) after application on automotive windshield
- Shelf life: 1 year
- Coverage: 1,000 – 1,200 ft2 per gallon (~30 m2 per liter)
Coating Application:
Spray a thin layer of WaterOFF!TM solution onto the glass surface. Avoid pointing the spray nozzle to the face. Take a cotton cloth or towel to buff the wetted surface in a circular and overlapping motion to create an evenly hazy surface. Reapply WaterOFF! solution to ensure uniform and complete coverage. Allow the hazy surface to dry 5-10 minutes. Remove the haze with a dry cotton cloth or towel by forcefully wiping the surface until the surface is crystal clear. Avoid applying the treatment at temperatures below 10°C and directly under strong sunshine.
For complete specifications and instructions, please refer to the Technical Data Sheet.
Precautions for Safe Handling:
Appropriate personal protective equipment should be used at all times. Avoid contact with eyes, skin and clothing. Provide good ventilation or extraction and avoid prolonged or repeated breathing of vapor. Keep away from heat, sparks, flames and other sources of ignition. Wash hands thoroughly after handling.
For complete safety information, please refer to the Safety Data Sheet.
Technical Links
Technical Links
View and download the latest technical data for our hydrophobic coatings and primer:
Coating |
Product Description |
Safety Data Sheet |
Technical Data Sheet |
| NANOMYTE® SuperCN | Durable, 2-component, thermal cure, highly hydrophobic coating | SuperCN SDS (Part A) ♦ (Part B) | SuperCN TDS & Instructions |
| NANOMYTE® SuperCN Plus | Durable, 1-component, thermal cure, highly hydrophobic coating | SuperCN Plus SDS | SuperCN Plus TDS & Instructions |
| NANOMYTE® WaterOFF! | Highly durable, 1-component, water-repelling surface treatment for glass | WaterOFF! SDS | WaterOFF! TDS & Instructions |
| NANOMYTE® SR-Primer | Adhesion Promoter for plastic substrates | SR-Primer SDS | SR-Primer TDS & Instructions |
Video
Request Quote
Quote Request Form
Achieve durable liquid repellent protection on various substrates with NEI’s hydrophobic and superhydrophobic coatings. NANOMYTE® SuperCN and SuperCN Plus, available for purchase in liter or gallon (~3.8L) quantities, as well as higher volume by request. NANOMYTE® WaterOFF! is sold in 4oz spray bottles and 1-gallon refill jugs. Alternatively, NEI offers custom coating services for a nominal fee and would be happy to coat your sample substrates for evaluation purposes.
To submit a quote request, please complete the form below and a representative will be in touch with you soon. NEI accepts purchase orders (check, wire, or bank transfer) and credit cards. Please note that by entering your information and submitting this form, you are agreeing to the terms of our privacy policy.
NEI can only sell to other businesses (not for personal use). Unfortunately, we are unable to provide free samples.
Available for Purchase
NANOMYTE® SuperCN and SuperCN Plus coatings are readily available for purchase in 1-liter, 1-gallon, & 5-gallon quantities (larger 55-gallon quantites are also available upon request). NANOMYTE® WaterOFF! is sold in 4oz spray bottles and 1-gallon refill jugs.
Additionally, NEI offers in-house coating services for customer’s parts, as well as coating development services, wherein coating formulations are customized to address specific customer requirements.