Corro-Coat PE (Polyster Powder Coatings)

Product Description

Polyester powder coatings are based on acid-functional saturated polyester cured by triglycidylisocyanurate (TGIC). No volatile by-products are given off during the curing reaction. The primary characteristic of polyester powder coating is its supreme color and gloss retention on external exposure. Corro-Coat PE flows easily with good edge cover and excellent resistance to mechanical wear. Simultaneously the coating is resistant to color variations normally caused when over-curing

Application Areas

Polyester powder coatings are ideal for use on metallic building components such as aluminum profiles, sections and sheets, agricultural equipment, garden furniture and leisure products, etc. The polyester powder is prominently suitable for use in electrostatic spraying equipment as well as friction charged equipment. Corro-Coat PE can also be successfully applied to other ferrous and non-ferrous bases. Special products are also available for use on porous bases.

Functional Qualities

Provided surface preparation has been correctly carried out and an adequate coating thickness has been applied, then corrosion prevention in acidic and alkaline environments are good, but resistance against specific solvents is limited and should be advised on this matter.

Although polyesters can be supplied in low gloss qualities, it must be realized that such variations may have reduced mechanical, chemical and weathering resistance.

Curing Conditions

Corro-Coat is supplied as standard and accelerated curing ("D" quality) versions.

Spraying Characteristics

The Corro-Coat PE formulation and particle size distribution results in excellent performance in electrostatic as well as friction charged application equipment.

General Specifications

  • Excellent weather resistance.
  • Excellent resistance to chalking from UV exposure.
  • Excellent mechanical properties.
  • Limited resistance to alkalines and solvents.
  • Excellent gloss and color stability from effects of heat.
  • Excellent flow and finish.
  • Good heat resistance
  • Gloss (60ยบ): 30-95

PE Resistance Chart

Chemical properties at room temperature

  Polyester   Polyester
Seawater Sodium Carbonate 10%
Tap Water Petrolium
Distilled Water Crude Oil
Sodium Chloride 2% Edible Oil
Sodium Chloride 20% Refined Petrol (Gasolene)
Sulfuric Acid 20% Turpentine
Hydrochloric Acid 10% High Octane Petrol
Hydrochloric Acid, conc. Toluene
Nitric Acid 3% Xylene
Nitric Acid 10% Ethyl Alcohol 96%
Nitric Acid 30% Butanol
Phosphoric Acid 4% Isopropyl Alcohol
Phosphoric Acid 10% Glycerol
Phosphoric Acid 43% Cyclohexanone
Sodium Hydroxide 5% Acetone
Sodium Hydroxide 30% Methyl-ethyl ketone
Acetic Acid 10% Ethyl Acetate
Acetic Acid, conc. Trichloroethylene
Na-hypochlorite, dilute Sodium Bi-chromate
Lactic Acid 10% Hydrogen Peroxide 3%
Citric Acid 10% Phenol
Ammonia 10% Urea
Ammonia, conc.
 
Excellent Resistance
 
Limited Resistance  
 
Little or No Resistance