Description
NDG FPU 500 Industrial Coating (Fluorinated Polyurethane)
NDG FPU Industrial is a single coat glossy Highly Fluorinated Polyurethane topcoat with outstanding weather resistance, excellent colour and gloss retention with less than 5% fade-off over 10 years. Available in either 5 or 10 year service life systems.
It is hard but flexible and abrasion resistant that cures through a wide temperature range.
When it fully cures it forms an extremely tough and abrasion resistant finish and is recommended for use over a variety of primed or powder coated surfaces.
Intended Uses
- As a finish coat where attractive appearance and a wide range of corrosive resistance is required.
- It can be used in a wide variety of environments including offshore structures, petrochemical & chemical complexes, storage tanks & pipelines, fertilizers industries, bridges, pulp and paper mills and in the power industry.
Product Features
- Excellent corrosion protection
- Excellent impact & abrasion resistance
- Designed as a finish coat for epoxy, PU and Powder coating systems
- Finish does not support mould, fungi growth
- Excellent gloss and colour retention characteristics
- Excellent weather resistance in coastal & industrially polluted atmosphere
- Excellent weather resistance
Colour: Clear
Finish: Glossy
Flash Point: 20C
Reduction Solvent: T-4
Clean-Up Solvent: T-4
Volume Solids %: Approx. 39%
Pot Life: 4 – 6 hrs depending on an ambient temperature
Shelf Life: Up to 12 months as long as the sealed containers are kept under cover in a dry place under normal temperature conditions.
Recommended DFT/Coat: 40 – 50 microns
Theoretical Covering Capacity (TCC) : 10.00m2/litre @ 40 microns DFT 7.80m2/litre @ 50 microns DFT
No. of Coats: 2
Drying Time: 15C – 30C
Surface Dry: 1 – 2 hours
Hard Dry: 16 hours
To Re-Coat: Min. overnight – max 7 days To Full Cure: 6 – 7 days
Over Coating Interval: Overnight
Performance Data
Abrasion Resistance: Excellent Adhesion: Excellent Flexibility: Excellent Impact Resistance: Excellent Humidity Resistance: Excellent
Chemical Resistance: Excellent
Water: Excellent Alkalies: Excellent Inorganic Acids: Good
Organic Acids: Good
Good Organic Solvents: Good
Surface Preparation Direction for Use
Previously Painted, Powder-coated or Primed Surfaces:
The surface to be coated must be dimensionally stable, dry, clean and free of oil, grease, release agents, curing compounds and other foreign materials.
All bare areas must be primed with suitable primer:
New steel must be grit blasted & glossy surfaces should be roughened before re-coating. If any old paint that is peeling, flaking, cracking, blistering or lifting must be removed. Scuff sand glossy areas and aged epoxy coatings. All edges of the old coating must be feathered down to remove sharp edge.
Bare Steel
- All surfaces shall be free of loose rust, mill-scale and contaminants such as oil, grease, dirt and salts. Before any surface preparation is attempted, oil and grease must be removed by employing a suitable solvent cleaning.
Use commercial Blast cleaning to remove mill-scale, rust and other contaminants and leave a roughened surface.
Concrete and Masonry
- Remove all loose particles, oil, grease, form release agents and any other contaminants.
- New concrete and masonry must be allowed to cure for a minimum of 30 days.
- Before painting, roughen the surface by abrasive blasting, acid etching or scarifying.
Special Notes
- Thinner consumption may vary depending upon site conditions.
- Practical covering capacity depends on application techniques, ambient conditions, wastage, surface conditions etc.
Mixing Instructions
This is a single coat application.
First, mix until uniform and thoroughly homogeneous. (Can be diluted to suit spray equipment using Butyl Acetate up to a ratio of 1:1)
If the settling is observed in the base, loosen the settled material with help of hand stirrer followed by power driven stirrer.
For best results, use a spiral mixing blade at variable speed (400 – 600 rpm). Place the spiral mixing blade at the bottom of the container before turning on the mixer.
This will help to avoid inducting air into the material. Inducted air will cause “bubbles” in the coating when applied. Gently move the mixer head up to the surface while running.
This product has workable pot life 4 – 6 hours at ambient temperature.
Applying the material immediately after the 30 minutes induction time will provide best results. Note: Higher air & mixture temperatures will decrease the pot life and working time.
Application Information
Generally this paint is best applied by spray. Due to the rapid dry of this coating, only small areas may be coated by brush, applicator pad, or roller.
Care must be taken to achieve the specified wet and dry film thicknesses. Uniform, even coats must be obtained.
Large horizontal surfaces should be spray applied, however roller application can be performed.
Application Methods
- Spray – Use airless spray or conventional spray. (Dilute with Butyl Acetate up to 1:1 ratio)
- Brush – Recommended for stripe coating and small areas, care must be taken to achieve the desired results.
- Roller – May be used for small areas but not recommended for first primer coat, however when using roller application care must be taken to apply sufficient material in order to achieve the specified dry film thickness.
NDG FPU Industrial Coating Test Results
- Adhesion ASTM D 3359 Cross Cut Tape test – Excellent
- Abrasion Resistance ASTM D 4060 C 17 Wheels, 1000 gm load, 1000 cycles 50 mg
- Impact Resistance ASTM D 2794 Gardiner Impact, 7 Day Air Dry at 25 C – Excellent Flexibility ASTM D 522 Conical Mandrel Apparatus – Excellent
Chemical Resistance 5% NaOH – No Effect
24hr Covered Watch 5% H2SO4 – No Effect - Glass Spot Test 100% Xylene – No Effect
100% Mineral Spirits – No Effect
Hardness ASTM D 3363 Pencil 7 Day Cure 6H Exterior Durability ASTM G 53 - Accelerated aging via exposure to Fluorescent, Ultraviolet and Condensation – Excellent Salt Fog Resistance
ASTM B 117 Salt Spray Test 400hrs – No Effect
Immersion Ambient 1500hrs – No Effect - Graffiti Resistance Crayon, Ink Pen, Marker, Shoe Polish – Excellent Hot Water Immersion 8C 800hrs – No Effect.
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