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538
PB500058-56
Technical annexes
Polyester base coating
properties
Product type
Thermosetting polyester resins based powder coating modified by epoxy resins and
designed for decoration and to prevent corrosion.
The performance of this coating is superior to conventional epoxy powders in terms
of: colour stability, temperature resistance and weather resistance.
Grey RAL 7035; appearance: structured.
Mechanical properties
Test conditions: steel samples with a thickness of 10/10
e
mm.
Degreasing using biodegradable surface-active agents.
Film thickness: 60 microns.
Chemical properties
Tests conducted at ambient temperature on phosphated samples covered
with a 150 to 200 micron film:
Film intact.
Film attacked (blistering, yellowing, loss of gloss).
Number of months
2 4 6 8 10 12
Acid
Acetic
20 %
Sulphuric
30 %
Nitric
30 %
Phosphoric
30 %
Hydrochloric
30 %
Lactic
10 %
Citric
10 %
Base
Soda
10 %
Ammonia
10 %
Water
Distilled water
Sea water
Tap water
Diluted chloride
bleach
Solvents
Petrol
Higher alcohols
Aliphatics
Aromatics
Ketones-esters
Tri-perchlorethylene
Bonding (scratching and adhesive tape)
ISO 2409
Class 1
Ericksen stamping
ISO 1520
≥ 7 mm
Direct impact resistance
ISO 6272
> 1 kg/70 cm
Indirect impact resistance
ISO 6272
> 1 kg/20 cm
Bending around conical mandrel
ISO 6860 -
ASTM D 522-88
Maximum cracking
of 70 mm, without the
paint coming loose
Physical properties
Temperature resistance: -40°C and 100 hours at +150°C (colour: white).
Gloss retention: good.
Resistance to corrosion
Compliance with standard IEC 62208 for outdoor installations: 288 h of humid heat
and 336 h of salt mist.