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Highway Guardrail Powder Coating

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DESCRIPTION

Highway guardrail powder coating provides a more durable and cost-effective alternative to traditional liquid paint. In fact, we’ve been offering high quality industrial powder coating solutions for all types of applications for more than 20 years. Guide rails take a beating over time. With the use of super durable powder coating materials like TGIC Polyester, you can be sure your guide rails will be able to withstand the harsh climate for many years to come. The lower lifecycle costs and lack of maintenance requirements means highway guardrail powder coating can give you an excellent return on your investment. And because our highway guardrail powder coating is applied as a dry powder without the use of chemical solvents, you have the peace of mind that comes with knowing you are implementing an environmentally friendly process as part of your operation.

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Highway guardrail powder coating is applied over the surface of the metal in a uniform pattern; in order for the particles to adhere to the material, they must first pass through a charging field supplied by the delivery system.  The charged particles are then attracted to the grounded metal via a clamp.  The powder is attracted to microscopic “ridges” in the grain boundaries, and settles in between these ridges. Once the powder has been applied to the enclosure, we place the coated enclosure in our oven and allow it to melt. Once the particles begin to melt, they flow out and chemically react to form a higher molecular weight polymer in a network-like structure.  This curing process, called cross-linking, requires a certain degree of temperature and a certain length of time in order to reach full cure and establish the desired film properties the powder was designed for.

 

ADVANTAGES

●Environmental, pass ROSH standard.

●Powder can be recycled, sieved, and repeated used.

●With rich colors. Gold, silver, chromium, nickel and various colors.

●Super high gloss, reach above 500%. Silver chrome effect can replace electroplating.

●Fine resistance to fingerprints, scratches, and oxidation.

●Compared with electroplating, it can save 50% - 60% cost.

●Pass FDA Test (V.S.21CFR/F.D.A),

●Pass impact resistance (GB/T1732-1993) 30KG·CM.

●Good adhesion (GB/9286-1998) GTO (BEST),

●2H hardness, strong anti-scratch.

●Salt Spray Test 100 hours, 2-year warranty at temperature.

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SPECIFICATION

Product Details

Type

Polyester Powder Coating

Surface Finish

Smooth

Gloss level

40%

Particle Size

Average 32-42μm

Specific Gravity

1.2-1.7g per cubic meter

Coverage

8-10 square meters per Kg at 30-90 μm film thickness

film thickness

120-150um Two Layers

Application Recommendation

Application Voltage

40-60 KV

Gun to Component Distance

15-30CM

Curing Temperature

200ºC x 10min

Powder coated Film Mechanical Properties

Adhesion

Cross-cut(2mm),no loss of adhesion

Impact Resistance

Direct impact 50kg/cm

Pencil Hardness

2H

Cupping Test

6mm Mandrel

Bending Test

5mm

Powder Coated Film Chemical Resistance

Salt Spray Test

5% NaCl Solution for 500 hours - No change

Acid Resistance

5% HCL for 48 hours dip test - No change

Alkali Resistance

5% NaOH for 48 hours dip test - No change

Storage Stability

Store in ventilated, dry, clean room, temperature < 25ºC

Relative humidity 50-65%

Away from direct sunlight, fire, heat

For best performance, use within 6 months

OTHER APPLICATIONS

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