POLYMERPowder coatingsPolyester for parts that live outdoors.
Our weather-resistant system for aluminium, steel and other metal parts exposed to UV and weather, including a Qualicoat Class 1 approved system for architectural aluminium.
Properties
What polyester is good at.
Typical properties from our product catalogue. Values for each grade are on its technical data sheet.
- 01Excellent weathering for parts exposed to UV
- 02Resists yellowing
- 03Good edge coverage
- 04High impact strength
- 05Acid and solvent resistance
Where it is used
Typical parts.
Architectural aluminium profiles, windows and hardware, outdoor lighting and poles, railings, outdoor furniture, AC housings, agricultural machinery, auto parts and bicycles, steel pipe and valves.
Architectural approval
Qualicoat Class 1, with its scope.
- Licence
- P-2199
- System
- Polyester PLM100611, gloss category 3
- Valid
- Until 31 December 2026
- Scope
- The approved polyester system only. Not all products or colours; no structured-texture or metallic extension; not Class 2 or Class 3.
Options
Colour, gloss, effect and cure.
RAL or your sample · high gloss ≥ 90, satin and matt 11–80, dead matt ≤ 10 · ten surface effects · standard or low-cure.
Questions
Before you specify.
Which powder coating system should I use for outdoor parts and which for indoor parts?
Use polyester for outdoor and UV-exposed parts. Use epoxy-polyester hybrid for indoor decorative parts and epoxy for indoor functional parts that need chemical resistance or hardness.
POLYMER supplies three thermosetting systems, and the choice is driven mainly by where the coated part will be used. Polyester is the weather-resistant system in our catalogue and is the one we recommend for architectural aluminium, outdoor furniture and lighting, air-conditioner housings, outdoor cabinets and agricultural machinery.
The epoxy-polyester hybrid gives good flow and gloss and is intended for indoor items such as appliances, steel furniture, shelving and indoor enclosures. Epoxy offers good chemical resistance, hardness and adhesion, and suits indoor functional parts such as safes, security doors, instrument housings and fitness equipment.
Neither epoxy nor hybrid should be specified for outdoor use. If one product range contains both indoor and outdoor parts, select the system part by part rather than using one powder for everything. Final suitability is confirmed on your parts, with your pretreatment and cure conditions.
Basis: POLYMER product catalogue (system descriptions and application areas). · Products →
What does Qualicoat Class 1 mean, and which POLYMER products does it cover?
Qualicoat Class 1 is the standard-durability approval level for powder coatings on architectural aluminium. At POLYMER it covers one polyester system, PLM100611, under licence P-2199.
Qualicoat is a quality label for coatings on aluminium used in architecture. Its Class 1 level is the standard-durability category. Higher durability classes exist, and POLYMER does not hold them.
The approval applies to our polyester system PLM100611, licence P-2199, gloss category 3. It does not include structured-texture or metallic extensions, and it does not extend to our other polyester products, to epoxy or hybrid powders, or to every colour we make. The current certificate is valid until 31 December 2026 and will be updated when renewed.
If your project requires a Qualicoat-approved powder, tell us the colour, gloss and finish so we can confirm whether it falls within the approved system. If a specification calls for a higher Qualicoat class, that is outside our current approval.
Basis: POLYMER Qualicoat certificate (licence P-2199) as stated in company records. · Quality & certificates →
Start a project
Send us your most-used colour and your hardest one.
Tell us the part, environment, process and expected volume. We reply with a proposed system and a sample plan. Orders from 1,000 kg.