Hybrid Powder Coatings

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GENERAL INFORMATION

PHYSICAL PROPERTIES

APPLICATION

Hybrid powders are a combination of Epoxy and Polyester resins designed for a range of both decorative and functional use. These coatings have excellent chemical and mechanical properties combined with outstanding over-bake resistance. Hybrid powders will have limited exterior exposure due to the epoxy component, whereas improved over-bake resistance to yellowing is found in the polyester component. They are available in a wide range of colors and glosses.

Hybrid powders perform well over cold rolled steel, castings, hot rolled steel and aluminum substrates suitably pretreated. Hybrids are available in both smooth and textured appearances. The recommended dry film thickness is 2.0 ‚ 3.0 mils.
 
Typical Uses for Hybrid: Suitable applications for Hybrid powders are electronic cabinetry, office and institutional furniture, fire extinguishers, wire goods, toolboxes, racking and shelving, electric and store fixtures and displays, to name a few.

Limitations of Hybrid: Hybrid powders should not be used on any products requiring ultra violet light exposure.

As always, we recommend you consult your ECL representative and perform your own physical testing to determine the suitability of a product for your requirements.

 

See health, safety and storage guide for further information.

Coating Performance of Hybrid: Sample test results typical of 2 - 2.5 mils applied to 24 gauge Bonderite 1000 panels. Please refer to the specific formula data sheet for physical properties.

1.       Recommended Usage:

Metal electronic enclosures for business machines, medical or office equipment as well as OEM metal products using castings or extrusions.

2.       Applicable Substrates:

Steel and aluminum, clean and chemically pretreated.

3.       Specific Gravity (ASTM D792):

1.25 ‚ 1.85

4.       Pencil hardness:

H ‚ 4H

5.       Adhesion Test, cross hatch:

5B

6.       Taber Abrasion:

Less than 70 mg loss per 1000cycles per 1KG load with CS-17 wheel

7.       Flexibility:

1/8 inch mandrel, no cracking, no peeling

8.       Impact, direct/indirect:

160 inch pounds/160 inch pounds

13. Solvent Resistance: 50 double rubs. No effect is defined as no permanent softening of film and/or permanent change in film appearance

a) IPA - no effect

14. Humidity resistance (100%):

1000 hours exposure: no blisters, no corrosion

15. Salt Spray ASTM B117:

1000 hours exposure: no blisters, no corrosion.

Method of application:

Manual or automated corona or tribo charged electrostatic spray equipment. Use of a fluidizer is recommended. Consult with your technical representative if you have any questions regarding application equipment

Smooth Finish or Texture Coat:

The appearance is determined by formulation. However film thickness can have an effect on texture appearances. Consult your ECL representative to determine the suitability of a product for your requirements.

 

Typical Cure Cycle for Hybrid

Recommended cure schedule is 10 minutes @ 390ƒF, peak metal temp. The cure range for Hybrid powder is from 20 minutes at 350ƒF to 7 minutes at 400ƒF peak metal temperature. Faster cure formulations are available.

Cure Time Chart:

Above temperatures given in Fahrenheit. In the above graph, the solid area depicts the cure cycle for standard powder coatings. The shaded area shows the range available for specially formulated low-bake powders.

 Dwell temperature will depend on the oven conditions: TIME, TEMPERATURE, and MASS.