Florida Finishing Polane Spray-Fill Specification
D61A23 is a two package polyurethane filler designed to fill and/or hide profile and surface imperfections on metal, castings, structural foam plastics, and wood. It also promotes adhesion of topcoats to the Substrate.
Light Gray ... D61A23 / Catalyst ... V66V27
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. When used as a filler, additional coats may be applied after flash off between coats.
Aluminum (untreated): Prime with Industrial Wash Primer, P60G2, or RoHS Compliant Wash Primer, P60G10, or Kem Aqua® Wash Primer, E61G520.
Galvanized Iron: Prime with Industrial Wash Primer, P60G2 or RoHS Compliant Wash Primer, P60G10, or Kem Aqua® Wash Primer, E61G520.
Machine tool castings: Apply a light coat to highlight the defects. Then apply multiple coats until the desired filling is achieved. Up to 15 mils dry film can be applied in multiple steps.
Plastic: Mold release must be removed from the Substrate. 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. 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.
Wood (interior only): Must be clean, dry, and finish sanded. Do not exceed 2.5 mils dry film.
Testing: Due to the wide variety of substrates, surface preparation methods, and application methods and environments, the customer should test the complete system for adhesion, compatibility and performance prior to full scale application.
• Do not vary catalyst ratio. Polane SprayFil must be catalyzed at 13:1 ratio to achieve optimum performance, hardness, flexibility, gloss, and chemical and solvent resistance.
• Do not spray hot. Heat shortens the pot life.
• Do not pump catalyzed material from drums into circulating systems. Friction heat developed by pumps and circulation will shorten pot life.
• Protect Polane SprayFil, catalyst and reducer from moisture. Water affects the pot life and product properties.
• Do not package Polane coated products in airtight plastic bags unless completely cured. Since Polane continues to cure for several weeks, the build up of organic solvents and reaction by-products could cause improper cure and adhesion failure in use.
• If not top coated within 7 days at room temperature, scuff sand before top coating to ensure proper inter coat adhesion.
• For high gloss finishes, an intermediate sealer such as Polane Primer-Sealer, E65A4 may be required.
• On all substrates, excess film thickness may cause splitting of the film or adhesion loss.
• For wood, the total dry film thickness of the system—SprayFil and the top-coats must not exceed 5 mils to ensure optimum performance, thicker films may cause cracking.
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.
Medium Gloss: 10 - 70 GU
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.
240-428 Sq Ft/gal @ 1.5-2.4 mils DFT
Per AD-MIXED KIT. Base and Catalyst and Reducer.
Recommended Dry Film Thickness: (DFT)
Note: Up to 15 mils dry film can be applied in multiple steps.
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, and can be kept as a physical record of the performance. Applying the coating to the test coupons at the same time as the process hardware provides a permanent measurement and an accurate guide to the coating thickness.
MILS Dry: 1.5 - 2.4
Note: Curing temperature must not exceed the heat distortion temperature of the substrate.
Drying Time measurements are based on a 2.0 MIL DFT coating with an ambient temperature of 77°F, and a Relative Humidity of 50%. Note: Top Coat MUST be applied with-in 24 hours of Primer application.
Air Quality Data (Theoretical):
• Non-photochemically reactive
• Volatile Organic Compounds (VOC) SprayFil, as packaged, maximum 4.24 lb./gal, 508 g/L
• V66V27, as packaged, maximum 3.82 lb./gal, 458 g/L
• Catalyzed and reduced as above 4.6 lb./gal, 552 g/L
• HAPS as packaged maximum 1.72 lbs/gal solids
Touch, Handle, Re-Coat, Sand, Force.
To Touch: 15 Minutes
To Tack Free: 1 Hour
To Top Coat: 1 Hour
To Sand: 4 Hours
To Force Dry: 20-30 Minutes at 140°F
Do not vary catalyst ratio. Polane SprayFil must be catalyzed at 13:1 ratio to achieve optimum performance, hardness, flexibility, gloss, and chemical and solvent resistance.
Always use clean mixing containers.
13 parts SprayFil
1 part Catalyst V66V27
2 part Reducer R7K84
Always use clean mixing containers.
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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