727-572-4474Marine Shield™ Powder Coating
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The protection of fabricated aluminum components such as Swim Platforms, T-Tops, Electrical Boxes, Poling Platforms, Fuel Tanks, Hand & Bow Rails, Windshield, Door, & Hatch Frames utilized on ocean craft boats requires the utmost consideration.
While anodizing is the most common choice for protection, it is not always aesthetically appealing. Additionally, corrosive salt will attack the anodized surface, and it will eventually exhibit pitting and oxidation, if not constantly cleaned or polished.
Marine Shield™ is a partially fluorinated powder coating, specially developed to protect aluminum components from the corrosive saltwater environment. Cured polymeric coatings have low permeability to oxygen, moisture, and salt ions, thereby mitigating corrosion.
Partially fluorinated powder coatings provide better resistance to UV (Sunlight) degradation, resisting chalking, fading, and loss of gloss.
For maximum corrosion resistance, a primer coat is recommended.
Marine Shield Powder Coatings Physical Properties and Tests
| Cure Schedule, Peak Metal temperature: | 10 to 20 minutes at 400 degrees F | ||
| 20 to 30 minutes at 380 degrees F | |||
| Specific gravity: | 1.44 to 1.72 g/cm3, varies by color | ||
| Film Thickness: | 2.5 to 4.0 mils | ||
| Specular Gloss Values: | 75 - Using a 60 degree gloss meter per ASTM D 523 | ||
| Impact Resistance | ASTM D 2784 | Pass - 160 in/lbs. | |
| Mandrel Bend | ASTM D 522 | Pass - 0.25 inch | |
| Crosshatch Adhesion | ASTM D 3359-B | Pass – 5B with no removal | |
| Pencil Hardness | ASTM D 3363 | Pass – > 2H | |
| Corrosion Resistance | ASTM B 117 | Pass - 4,000 hours | |
| Humidity resistance | ATM D 2247-94 | Pass - 4,000 hours | |
Disclaimer:
We urge you to consult with Crosslink and to perform your own tests to determine the suitability of this product for your particular purposes. The information contained herein is to the best of our knowledge, and is not intended to be exhaustive. It is intended to inform users of the general criteria regarding this coating. We have no control over either the quality or condition of the substrate, the processes of pretreat, application, or curing, or the many factors affecting the use, application or final installed environment of the coated product. We make no guarantee of results, and assume no liability for damages incurred by following these suggestions, or for misuse. We do not accept any liability whatsoever or howsoever arising from the performance of the product or for any loss or damage arising out of the use of the product. Any product liability shall be incurred in writing only. The information contained in this sheet is subject to modification from time to time due to experience and continuous product development.
Metal Preparation and Pretreatment:
A multi stage cleaning and pretreatment system is required to prepare the aluminum substrate. A properly operating pretreat system will remove organic and inorganic surface soils, remove residual oxides, and apply a chemical conversion coating to which organic coatings will adhere. Pretreat chemical conversion solutions and rinses should utilize high purity water, and may be of chrome containing conversion, or non-chrome conversion chemistries. Applicator pretreat solutions and processes must comply with the chemical supplier’s procedures and guidelines. Frequent in-plant testing and control of pretreatment is required to insure satisfactory performance of the coating system.
Application:
Marine Shield Powder Coatings are designed for application by electrostatic spray – manual or automatic. Reclaim is acceptable, provided there is no incident of cross-contamination. When applying Marine Shield Powder Coatings, some experimentation is typical with regard to gun kV settings and air velocities to maximize transfer efficiency and achieve a consistent coating thickness. Curing by means of gas fired convection oven with proper exhausting is the industry norm. Oven profiling is required to evaluate the cure process.
Precautions:
All dusts are respiratory irritants. The coating area must be properly ventilated. If skin contact occurs, wash with mild, soapy water. If eye contact occurs, flush with water immediately and secure medical attention. Dust clouds of any finely divided organic material can be ignited by electrical sparks or open flames. All equipment must be electrically grounded to preclude buildup of static electricity. Ensure adequate oven ventilation when curing this product. See MSDS for further precautions.
Storage Stability:
The maximum storage temperature for this coating is 75°F at 50% Relative Humidity. Under these conditions, a shelf life of 12 months is expected.