Florida Finishing POLANE® 2.8T Plus Polyurethane Enamel
POLANE® 2.8T Plus is a two component polyurethane coating meeting the 2.8 EPA regulations for solvent emissions and meeting the high performance properties required by the business machine, computer and electronic enclosures industry. Polane 2.8T Plus coatings may be applied as a low gloss, smooth or textured coatings on structural foam and injection molded plastics such as polycarbonate, ABS and Polystyrene, SMC, wood and metal substrates.
Blending White ... F63W76 - Blending Clear ... F63F77 - Catalyst ... V66V47
General: Substrate should be free of grease, oil, dirt, fingerprints, drawing compounds, any contamination, and surface passivation treatments to ensure optimum adhesion and coating performance properties.
Aluminum (untreated): Prime with Industrial Wash Primer, P60G2, RoHS Compliant Wash Primer, P60G10, or Kem Aqua® Wash Primer, E61G520.
Galvanized Steel (untreated): Prime with Industrial Wash Primer, P60G2, RoHS Compliant Wash Primer, P60G10, or Kem Aqua® Wash Primer, E61G520.
Plastic: Due to the diverse nature of plastic substrates, a coating or coating system must be tested for acceptable adhesion to the substrate prior to use in production. Reground and recycled plastics along with various fire retardants, flowing agents, mold release agents, and foaming/blowing agents will affect coating adhesion. A filler or primer/barrier coat may be required. Please consult your Florida Finishing Representative for system recommendations.
Steel or Iron: Remove rust, mill scale, and oxidation products. For best results, treat the surface with a proprietary surface chemical treatment of zinc or iron phosphate to improve corrosion protection. Prime untreated steel with RoHS Compliant Wash Primer, P60G10, Industrial Wash Primer, P60G2 or Kem Aqua Wash Primer, E61G520.
Wood (interior only): Must be clean, dry, and finish sanded. Apply Polane 2.8 Plus Filler, D61H75 and sand.
Testing: Due to the wide variety of substrates, surface preparation methods, application methods, and environments, the customer should test the complete system for adhesion, compatibility and performance prior to full scale application.
• Polane 2.8T Plus coating must be catalyzed at 4:1 ratio with V66V47 by volume. Do not vary catalyst ratio. The ratio has been established for optimum hardness, flexibility, gloss and chemical and solvent resistance.
• Polane Catalyst V66V47 is recommended for interior use only. Polane 2.8T Plus is not recommended for extended exterior exposure because of chalking and loss of gloss.
• Do not spray hot. Heat shortens pot life. Do not pump catalyzed material from drums into circulation system. Friction heat developed by pumps and circulation will shorten pot life.
• Protect Polane Coatings, Catalyst, and Reducer from moisture as water affects pot life and film properties. Store indoors. Keep containers closed at all times.
• Do not package Polane coated products in airtight plastic bags unless completely cured. Since Polane Coatings continue to cure for several weeks, the buildup of organic solvents and reaction by-products could cause improper cure and adhesion failure in use.
• Do not blend with any other polyurethane quality. No other catalysts, colorants, or reducers are recommended because foreign materials such as alcohols, glycols, and lacquer thinners affect film performance properties.
• If re coating after more than 7 days cure, sand lightly to ensure inter coat adhesion.
• Blend with Phoenix® colorants only.
• Gloss levels may be adjusted by using F63T8 or F63V68 in the Phoenix® system.
After ½ hour spot test and one hour recovery:
Isopropanol ............................ Excellent
10% NaOH ............................. Excellent
Ethyl Acetate .......................... Excellent
Ammonia ................................ Excellent
Drano ..................................... Excellent
Ivory® Liquid .......................... Excellent
Clorox Formula 409® ................ Excellent
MEK ....................................... Excellent
(50 rubs MEK ........... no/slight burnishing)
Toluene .................................. Excellent
10% HCL ................................. Excellent
1,1,1, Trichloroethane ............... Excellent
1 normal H2SO4 ........................ Excellent
5% Tide solution ....................... Excellent
Note: Curing temperatures above 140°F may yield slightly lower gloss.
The gloss meter provides a quantifiable way of measuring gloss intensity ensuring consistency of measurement by defining the precise illumination and viewing conditions. The configuration of both illumination source and observation reception angles allows measurement over a small range of the overall reflection angle. The measurement results of a gloss meter are related to the amount of reflected light from a black glass standard with a defined refractive index. The ratio of reflected to incident light for the specimen, compared to the ratio for the gloss standard, is recorded as gloss units (GU).
Measurement angle refers to the angle between the incident and reflected light. Three measurement angles (20°, 60°, and 85°) are specified to cover the majority of industrial coatings applications. The angle is selected based on the anticipated gloss range, as shown in the following table.
Low Gloss 5-15 Units @ 60°
Low Gloss: 5-15 Units
Note: Viscosity measurements include Base and Catalyst and Reducer.
Zahn and Ford viscosity cups measure the rate of flow of a liquid.
The viscosity of a fluid is a measure of its resistance to gradual deformation by shear stress or tensile stress. For liquids, it corresponds to the informal notion of "thickness" For example, honey has a higher viscosity than water.
Viscosity is due to friction between neighboring parcels of the fluid that are moving at different velocities. When fluid is forced through a tube, the fluid generally moves faster near the axis and very slowly near the walls, therefore some stress (such as a pressure difference between the two ends of the tube) is needed to overcome the friction between layers and keep the fluid moving. For the same velocity pattern, the stress required is proportional to the fluid's viscosity. A liquid's viscosity depends on the size and shape of its particles and the attractions between the particles.
A liquid whose viscosity is less than that of water is sometimes known as a mobile liquid, while a substance with a viscosity substantially greater than water is called a viscous liquid.
In paint industries, viscosity is commonly measured with a Zahn or Ford cup, in which the efflux time is determined and given to customers. The efflux time can also be converted to kinematic viscosities (centistoke, cSt) through the conversion equations.
Theoretical Coverage: (no application loss)
Also known as the "Spreading Rate". Theoretical Coverage uses the total contents of an AD-MIXED coating. (Part A, plus Part B, plus Part C) Including all catalyst and reducer necessary to meet the Manufacturer Mixing Recommendations as specified on the Product Data Sheet.
480-640 Sq Ft/gal @ 1.5-2.0 MILS DFT
Per AD-MIXED KIT. Base and Catalyst and Reducer.
Recommended Dry Film Thickness: (DFT)
Note 1: Coating is Sandable, Slow Build.
Note 2: Spatter or texture coat may be applied immediately after flash off of smooth coat.
Coating material when dry (after curing) should typically have a thickness of 30–130 µm (0.0012–0.0051 in) when using acrylic resin, epoxy resin, or urethane resin. For silicone resin, the coating thickness recommended by the IPC standards is 50–210 µm (0.0020–0.0083 in).
There are several methods for measurement of conformal coating thickness and they fall into two categories. These categories are wet film and dry film conformal coating measurements
An alternative method to wet film measurement is using a non contact technique using eddy currents. The system works by placing the test head on the surface of the conformal coating, the measurement is almost instantaneous and provides an immediate repeatable result for thickness measurement of conformal coating.
Test coupons are the ideal method for measuring the coating thickness, whether is it spraying or dipping, and can be kept as a physical record of the performance. Apply the coating to the test coupons at the same time as the circuit boards provides a permanent measurement and an accurate guide to the coating thickness.
Mils Dry 1.0 - 1.2
Note 1: Curing temperature must not exceed the heat distortion temperature of the substrate.
Note 2: Curing temperatures above 140°F may yield slightly lower gloss.
Drying Time measurements are based on a 1.1 MIL DFT coating with an ambient temperature of 77°F, and a Relative Humidity of 50%.
Air Quality Data (Theoretical):
• Photochemically reactive
• Volatile Organic Compounds (VOC) as packaged, maximum, less exempt solvents: 2.55 lb/gal, 306 g/L
• Catalyzed and reduced as above: 2.8 lb/gal, 335 g/L
Touch, Handle, Re-Coat, Force.
To Touch: 25-35 Minutes
To Handle: 1-3 Hours
To Top Coat: No critical Re-Coat
To Force Dry: 35-45Minutes at 140-180°F
Polane 2.8T Plus coating must be catalyzed at 4:1 ratio with V66V47 by volume. Do not vary catalyst ratio. The ratio has been established for optimum hardness, flexibility, gloss and chemical and solvent resistance.
Always use clean mixing containers.
4 parts Polane 2.8T Plus
1 part Catalyst, V66V47
0.25 part (5%) Red. R6K30
Note 1: Less reduction or higher temperatures will shorten pot life.
Note 2: Begin POT LIFE time from Mixing.
All two-part coatings have a "pot-life" or "working time" during which the coating can be used. Usually the pot-life is a matter of a few hours but is also highly temperature dependent. Both water-borne and solvent based coatings have a Pot-Life.
Based on Environmental Conditions of an ambient temperature of 77°F, and a Relative Humidity of 45%
The total period of time beginning with the date of manufacture, or date of pack, and terminated by the date by which an item must be used (expiration date) or subjected to inspection, test, or disposal action.
Shelf-life is not to be confused with service-life (defined as, A general term used to quantify the average or standard life expectancy of an item while in use.)
From MFG. Date. Based on Unopened container.
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