Technical Data Sheet
Intercoat series 420
Thermosetting powder coating for outdoor use
PolyesterSmooth glossSemi-glossSmooth mattSemi-mattRough gloss structureRough matt structureFine texture
Download PDFProduct description
Thermosetting powder coatings formulated without TGIC for both outdoor and indoor use. Intercoat 420 is used for protective and decorative coatings on various metal surfaces. It has moderate physical and mechanical properties and a moderate quality of coating surface.
Typical application
The Intercoat 420 powder coating is designed for application on aluminium extrusion and sheets, steel and galvanized substrates, architectural aluminium profiles and facades.
Product details
- Packages
- Carton with antistatic PE bag liner, 20 kg, 25 kg or Big Bag of approx. 500 kg, net
- Storage stability
- Minimum 24 months from manufacture (see the printed date on the product label)
- Storage temperature
- < 25 °C
- Air humidity
- < 80 %
- Specific gravityISO 8130-2
- smooth 1.50–1.65 g/cm³ · rough structure / fine texture 1.50–1.80 g/cm³ depending on pigmentation
- Moisture contentISO 8130-7
- < 0.4 %
- FluidizationISO 8130-5
- good, 120–140 points
- Particle size distributionISO 8130-13
- Fine fraction up to 10 µm: < 6 %
- Base fraction up to 32 µm: 25–45 %
Test results
Checked under laboratory conditions on a chromated 0.8 mm thick aluminium test panel. Actual product performance may vary due to product specific properties such as gloss, colour, effect and finish as well as application related and environmental influences.
| Test method | Test | Smooth gloss | Semi-gloss | Smooth matt | Semi-matt | Fine texture | Rough gloss structure | Rough matt structure |
|---|---|---|---|---|---|---|---|---|
| ISO 2360 | Film thickness, recommended | 60–80 µm | 60–80 µm | 60–80 µm | 60–80 µm | 70–90 µm | 80–100 µm | 80–100 µm |
| ISO 2409 | Cross-cut test / adhesion, 1 mm cutting distance | GT 0 | GT 0 | GT 0 | GT 0 | GT 0 | GT 0 | GT 0 |
| ISO 1519 | Mandrel bending test, cracking of coating | ≤ 5 mm | ≤ 5 mm | ≤ 6 mm | ≤ 6 mm | ≤ 10 mm | ≤ 10 mm | ≤ 25 mm |
| ISO 2815 | Impression hardness | ≥ 87 | ≥ 87 | ≥ 87 | ≥ 87 | – | – | – |
| ISO 3668 | Coating colour, deviation | ≤ 3 | ≤ 3 | ≤ 3 | ≤ 3 | ≤ 3 | ≤ 3 | ≤ 3 |
| ISO 6272 | Ball impact test, cracking of coating | No cracks | No cracks | Cracks | Minor cracks | Cracks | Cracks | Cracks |
| ISO 6270-1 | Resistance to humidity, 1000 h | ≤ 1 mm | ≤ 1 mm | ≤ 1 mm | ≤ 1 mm | ≤ 1 mm | ≤ 1 mm | ≤ 1 mm |
| ISO 9227 | Salt spray test, 1000 h | ≤ 1 mm | ≤ 1 mm | ≤ 1 mm | ≤ 1 mm | ≤ 1 mm | ≤ 1 mm | ≤ 1 mm |
Gloss level
- Smooth gloss75–100 *
- Semi-gloss60–75 *
- Smooth matt10–40 *
- Semi-matt40–60 *
- Rough gloss structurevisual comparison
- Rough matt structurevisual comparison
- Fine texturevisual comparison
* Gloss level according to DIN EN ISO 2813 at 60° (does not apply to metallic effect powder coatings).
Processing
Corona, Tribostatic *
* Available upon inquiry.
Colour shades
Mainly RAL shades; also special domestic shades on request *.
* Colour of coating parameters other than indicated in the table can be agreed with the customer.
Pretreatments
Before painting, the item should be adequately pretreated in accordance with surface type, final use and required performance. The following table can be used as a starting point for the pretreatment choice. The surface shall be clean, dry and appear with a rough and dull profile.
| Substrate | Indoor use | Outdoor use |
|---|---|---|
| Aluminium | soil removal, chromate, chrome-free | chromate, chrome-free |
| Steel | soil removal, iron phosphate, zinc phosphate, sand-blasting | iron phosphate, zinc phosphate, sand-blasting |
| Zinc-coated steel | acid attack, iron phosphate, chromate | acid attack, zinc phosphate, chromate |
Oxide (rust) cleaning and degreasing shall be carried out when the simplified process is used. The simplified pretreatment does not ensure the necessary protective properties and decreases the service life of the coating. Hot-dip galvanized steel requires additional mechanical processing (incision).
Cure parameters
Temperature and time combinations resulting in the optimal cross-linking of the coating.
- 200 °C · 10 min
- 180 °C · 15 min
Please observe cure parameters closely, since mechanical properties will develop before full cross-linking. To obtain optimal stoving conditions, you are recommended to carry out practical trials adapted to the object in question and the stoving oven each time.
Temperature conditions of curing for each powder are listed on the label. Our technical service department will be glad to advise you. The curing schedule can be set by agreement with the consumer.
Note
The data is provided for informational purposes and is not exhaustive. Any purchaser using the product other than as specified in this data sheet assumes responsibility for the results obtained. As the manufacturer, we provide a more accurate description of the product, conditions of use and all related factors of the application process. Because direct control by us cannot be exercised over compliance with the above conditions, without further written agreement, we make no warranty and assume no liability for the use of the product and the results obtained.