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Types of Plastic Powder for Coating

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Polyethylene (PE)
 

Low Density Polyethylene (LDPE) powders are commonly applied to racks, shelves, and wireworks for corrosion protection and decorative purpose.  The coating offers smooth and glossy finish with variety of colour, and resistance to abrasion, scratch, impact, UV light, chemicals.

Applications:
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Air-conditioner fan guards (compressor units), refrigerator racks, wireworks

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Automotive parts - bonnet stays, battery cases, roof racks

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Outdoor furniture - benches, handrails, fencing, lamp posts

 

PE Coating Examples
 
 
Nylon Coating Examples
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Nylon (Polyamide-11)
 

Nylon is a common name of Polyamide-11 (PA-11) thermoplastic coating powder.  Its characteristics include good abrasion resistance, low co-efficient of friction, high impact strength, electrical insulation, self extinguishing, and high service temperature up to 100°C.  Nylon has good resistance to chemicals such as alkalis, salts, and most solvents but limited resistance to some acids.  Finish products have glossy surface and self-lubricating property.

Applications:
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Industrial applications - swash baskets, housing trays

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Automotive parts - buckles, brackets, handles, nudge bars, spline columns, door rails

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Water/fluid handling equipment - pipes, tanks, water filters, valves, connections, fittings

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Furniture & household goods - chairs and tables, luggage racks, shop fittings, bathroom fittings

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Wire goods - dishwasher racks, shopping carts

 

 

 

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Halar® E-CTFE
 

Halar is a thermoplastic fluoropolymer powder with a unique chemical structure of Ethylene-Chorotrifluoro ethylene copolymer (E-CTFE) that gives Halar special properties and superior advantages for corrosion protection.  It offers extremely good chemical and flame resistance, electrical insulation, as well as ability to retain its properties over a broad range of temperatures from cryogenic to 150°C.

Characteristics:
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Mechanical toughness, excellent impact strength and abrasion resistance

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Good electrical properties

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Outstanding chemical resistance suitable for applications where resistance to chemicals (strong minerals and oxidising acids, alkalis, most organic solvents) is necessary

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Excellent permeability resistance to gases such as oxygen, carbon dioxide, nitrogen, helium

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Excellent radiation resistance and high oxidative stability

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High temperature performance up to 150°C

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UL94 V-0 flammability rating

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Surface smoothness which does not support bio-film growth

 

Applications:
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Chemical storage & fluid handling - piping systems, containers, vessels, filters, hoods, agitators, centrifuges, caustic collectors

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Semiconductor and electronic process equipment - semiconductor chemical storage tanks, clean room equipment, electroplating equipment

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Processing equipment - pumps, valves, fittings, expansion joints, fans, impellers, propellers

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Duct systems - fume and smoke exhaust ducts

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Fire safe components

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Oil field applications - shock tubing, encapsulated injection tubing, coated rod

 

Halar Coating Examples
 

Table:  Powder Property Comparisons

 
Properties Polyethylene (PE)

Nylon (PA-11)

Halar® E-CTFE

Colour Black, White, Grey

Black, White

Greyish green
Appearance Bright and icy Semi-glossy Glossy
Recommended Coating Thickness 300-600 microns 250-750 microns 500-1,200 microns
Maximum Working Temperature - Dry 55°C

100°C

150°C
Adhesion Limited to good

(Depend on grade)

Good Good
Hardness Shore D 46 70 75
Abrasion Resistance Good Excellent Excellent
Elongation at Break 200% 40% 325%
UV Stability Fair Fair Good
Chemical Resistance *

- Acids

- Alkalis (Bases)

- Solvents

- Mineral salt solutions

 

Very good (Dilute)

Good (Dilute)

Poor

Good

 

Limited

Good (Dilute)

Good (Common)

Good

 

Excellent

Excellent

Fair

Excellent

Water Absorption (24hrs at 23°C, 100% RH) 0.015% 2.0% < 0.1%
Flammability (UL94) HB HB V-2 V-0

Chemical resistance capability also depends on temperature and concentration of chemicals.

Please consult Siam Plaste for further details.

 
 
 

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Last update 03 October 2005

Siam Plaste Industry Company Limited

3 Soi 27 (Boonsiri 4), Sukhumvit Road, Paknum, Samut Prakarn 10270 Thailand  Tel: +66 (0) 2384 5565  Fax: +66 (0) 384 0470