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EPOXY POLYESTER POWDER COATINGS

Based on specially selected resins to give the hard durable finish associated with epoxy coating but with superior heat stability and exterior durability.

Typical applications for epoxy polyester powder coatings are those where a tough decorative finish is desirable such as domestic appliances and office furniture. For use requiring ultimate heat stability and outside durability polyester powder should be used.

Epoxy Polyester Powder Coatings

Application Areas

Reference No’s

  •   TLM – G Epoxy-Poly Gloss
  •   TLM – S Epoxy-Poly Semi Gloss

Coating Properties

  • Test Panels, 50 microns thickness applied to light weight zinc phosphated steel

Coating Thickness

  •   Minimum – 40 microns
  •   Preferred – 50 to 60 microns

Particle Size

  •   100% below 90 microns

Architectural Powders

Specific Gravity

  •   1.3 – 1.8 depending on colour & finish

Curing Schedules

  •   TLM – G – Rapid Cure / Low bake
  •   TLM – S – Standard Cure

Storage

  •   Store below 25°C in dry conditions

Shelf Life

Epoxy Powders

EPOXY POLYESTER POWDER COATINGS

Polyester Powders

Nylon Modified Powders

Physical Properties

TLM-S TLM-G
Flexibility BS3900 E1 Pass mm 6 5
Scratch BS3900 E2 Pass kg 4 4
Impact BS1391
Direct Pass in lbs 80 100
Reverse Pass in lbs 80 100
Erichsen Cupping BS3900 E4 Pass mm 6 8
Cross Hatch BS3900 E6 Pass % 100 100

Environmental Properties

TLM-S TLM-G
Humidity resistance BS3900 F2 Pass hours 1000 1000
Salt Spray resistance ASTM B117 Pass hours 1000 1000
Water resistance BS3900 G2 Pass hours 1000 1000

Post Forming Powders

Speciality Powders

Application

  • Suitable for application by proprietary manual or automatic discharge equipment and triboelectric charging guns.

Pretreatment

  • It is essential to ensure that the surface to be coated is free from dust or rust or scale and also oil, etc. Chemical pre-treatment of the substrate is essential to increase the long term corrosion resistance. Further information is given in our publication ‘Application of Epoxy Polyester Powder Coatings’.

Boiling Water Resistance

  • No blistering after 50 hours.

Detergent Resistance

  • No blistering afer 50 hours in 2% boiling tide.

Solvent & Chemical Resistance

  • Good resistance to acids, alkalis and solvents at room temperature. May be attacked by dilute nitric acid, ketones and trichloroethylene. Refer to information sheet ‘Chemical Resistance of Powder’.

Exterior Durability

  • Some chalking will occur after six months but protective qualities are unimpaired providing adequate pre-treatment is used.

Health & Safety

  • Use in accordance with the Code of Safe Practice published by the Paintmakers Association of Great Britain, “Application of Powder Coatings Electrostatic Spraying”. Copies are available on request. To prevent inhalation of airborne powder, face masks capable of removing respirable dust should be worn. Skin contact should be avoided and any deposited powder removed with soapy water. Some powders, mainly bright red and yellow shades, contain lead chrome and cadmium pigments. Further information is given in our Health and Safety Sheet.

Disclaimer

  • Our data sheets and sales literature are issued for the purpose of supplying general product information. In view of the variation of conditions under which products may be used or this information may be applied, we cannot accept responsibility for loss, damage or accident of any nature [or infringement of patent rights] which may result from the use of application of the information or the products. For specific confirmation of any details in the product information or use and application please apply to the company in writing.