NEI NANOMYTE - Model TC-4001-UVP -Nanocomposite Barrier Coating with UV Protection

TC-4001-UVP has also shown to offer protection against damage by short-wavelength ultraviolet radiation. Ultraviolet radiation in the 100nm – 280nm wavelength range (also referred to as UV-C) is used as a means for disinfecting large surfaces by killing or inactivating microorganisms, such as bacteria and viruses. The disinfection method is popular in hospitals, as well as high traffic areas such as transit systems, theme parks, cinema theaters, public restrooms, and airports. However, UV radiation causes significant damage to painted surfaces by creating free radicals that then cause polymer degradation. NANOMYTE® TC-4001-UVP shows a remarkable ability to block UV-C, offering protection to coated surfaces against UV-C radiation. All radiation below 350nm is blocked completely by a film that is only 1/5 mil (5 microns) thick.

The transparent coating strongly adheres to bare, pretreated, and painted metal, resisting scratching and chipping. A variety of other surfaces may be coated as well, such as plastics and composites. TC-4001-UVP is easily applied by immersion, spraying or brushing, in thicknesses ranging from microns to mils, and is available in glossy or matte finishes.

• High Performance – Corrosion protection, stain resistance, hard to scratch or chip, water repellant, will not break down in sunlight, anti-fouling
• Easy Application – Dip, spray, or brush on; most substrates require only one coat
• Cost Effective – Cost per square foot savings over traditional coatings, labor cost savings, protects the initial substrate investment
• Environmentally Smart – Low VOCs, no heavy metals, no peeling or flaking into water or soil
• UV-Resistant – Blocks all forms of UV radiation (UV-A, UV-B, & UV-C) to protect surfaces from the harmful effects of sun and UV exposure.

Overview

• Single-component coating solution
• Hard, dense nanocomposite barrier coating
• Corrosion, chemical, and abrasion resistant
• Bonds to bare, pretreated, or painted metal surfaces
• Customized formulations possible

Properties

• Color: Clear liquid (colorless to yellow)
• Curing Temperature: 20°C – 150°C
• VOCs: Less than 100 g/L
• Carrier type: Solventborne
• Coverage: 800 – 1200 sq. ft / gallon
• Solids Content: 18 – 20 %
• Recommended Thickness* (per coat):
  • Wet mils: 1.5 – 2.0
  • Dry mils: 0.5 – 1.2
• Weatherability: 1,000 hours (minimum)
  • DFT: 10 – 15 microns (0.5 mil) by ASTM D4587 (G154, Cycle 1)

Applications

Military, aerospace, marine, automotive, electronics, infrastructure (pipelines, buildings, towers, bridges)

Surfaces

Iron, steel, stainless steel, zinc plated and galvanized steel, aluminum, copper and bronze, powder coated metals, and painted or primed metals.

Solution

Addresses problems related to corrosion (rust), oxidation, moisture and ice formation, acid rain, chemical stains, UV damage, mold build up, marine biofouling, and animal waste contamination. *Coating can be made thinner by diluting with recommended solvents; **DF

Durable Protection from Harmful UV rays

NEI’s UV-Protect (UVP) technology imparts enhanced protection from the effects of sun and weather exposure to maintain the unique properties of the coating when subjected to long-term outdoor exposure. NANOMYTE^® coating products with UVP technology have demonstrated their ability to endure a minimum of 1,000 hours of weatherability testing (ASTM D4587).

Polymer and composite materials can be particularly sensitive to the effects of UV exposure, which can have a variety of undesirable effects, such as compromised coating adhesion, which eventually results in cracking and peeling. UV-degraded materials may also change colors, often resulting in the familiar yellowing of plastics and lose mechanical strength, making them prone to failure. NANOMYTE^® UVP coatings block UV radiation, which protects surfaces by preventing further penetration of UV light, thereby preserving the material’s strength, coating adhesion, and appearance.

NANOMYTE^® UVP coatings are available for purchase in liter and gallon quantities and can be applied by conventional coating processes, such as dipping, brushing or spraying. 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.

Surface Preparation
Ensure bare metal surfaces to be coated are clean and dry. Remove all oil, grease, dust, dirt and other foreign material before using appropriate metal cleaner and/or applying TC-4001-UVP. To ensure that the surface is free of oil and grease, use a lint-free white cloth with a solvent, such as alcohol or acetone, and clean until the cloth remains white after wiping. TC-4001-UVP can then be applied per application instructions below. Remove scale and light to medium rust using appropriate rust stabilizer and/or scale remover. Heavy rust must be sandblasted or ground off. If desired, metal may be primed or painted before using TC -4001-UVP as final topcoat.

Application
Apply by spraying, immersion (dipping), rolling or brushing.

Spraying
When surface preparation is complete and surface is dry and free of dust, begin application using a high volume, low pressure (HVLP) spray gun with a 1.0 size tip and the pressure set at approximately 25 to 30 psi. On a separate piece of cardboard first spray a test pattern to achieve a 6” to 8” elongated pattern approximately 1” wide in the middle and fluid enough to cover but not puddle. Once the spray pattern is achieved on the test cardboard, spray one coat in a cross -pattern; left to right, then up and down. To spray small pieces or tight locations you can use a “Preval” sprayer – a small disposable sprayer that can spray any liquid and holds approximately 6oz, ideal for touch ups as well.

Rolling
Using an ultra-smooth, high-density foam roller, pour TC-4001-UVP into a roller pan and completely saturate the roller. Apply in a cross-pattern; left to right, then up and down as quickly as possible as the coating dries fast. Avoid down pressure on the roller to achieve a better looking finish.

Brushing
Select the appropriate size brush width based on the surface area being coated. Apply TC-4001-UVP in a cross-pattern, up and down, then left and right. To obtain the best results, do not overwork the coating as it dries fairly quickly. Do not bear down with the brush.

Curing

Room Temperature Curing (25 °C)
Under ambient conditions, a single coat will be dry to the touch in 1-2 hours and cured in 24 hours.

Accelerated Curing (105 °C – 150 °C):
Alternatively, the coating can be applied to the surface, dried in ambient air for 10 minutes, and then heated to at least 105 °C for 1 hour. An oven, blow dryer or heat gun may be used (maximum temperature is 150 °C). After heating, coated parts should be allowed to cool before handling.