ISO 9001 · 14001 · 45001IATF 16949QUALICOATUL 1332CNAS L15415
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Weather-resistant polyester · thermosetting powder coating

P1680 Series Weather-Resistant Polyester Powder Coating

P1680 series is WANAN's highest-durability weather-resistant polyester powder coating, for outdoor equipment, architectural hardware, enclosures and outdoor metalwork where corrosion, humidity and appearance stability requirements are highest. Tested to 1000 h neutral salt spray (ISO 9227), 720 h humidity (ISO 6270-1) and 1000 h xenon-arc weathering (ISO 16474-2). Cure 190–200 °C object temperature, 10–15 min.

Cure 190–200 °C PMT 10–15 minFilm 80–120 µmSpray 40–100 kV
P1680 series powder coating colour panels

Key features

1000 hNeutral salt sprayISO 9227
720 hHumidity resistanceISO 6270-1
1000 hXenon-arc weatheringISO 16474-2

Technical data

Coating properties measured on cured films under the conditions stated in the WANAN P1680 series technical data sheet. Every value is tied to its test method.

P1680 series — coating performance
PropertyResultTest method
Gloss, 60°As agreedISO 2813
Impact (direct)50 kg·cmISO 6272-2
Flexibility (mandrel bend)≤ 4 mmISO 1519
Cross-cut adhesionClass 0ISO 2409
Pencil hardnessHISO 15184
Humidity resistance720 hISO 6270-1
Neutral salt spray1000 hISO 9227
Accelerated weathering (xenon-arc)1000 hISO 16474-2
Test panels: 70 × 150 × 0.6–0.8 mm phosphated steel; 0.2–0.3 mm panels for flexibility, impact and cupping. Panels cured under conditions agreed with the customer and conditioned 24 h before testing. Xenon-arc weathering per ISO 16474-2 method 1: irradiance 0.51 W/m² at 340 nm, black-standard temperature 65 ± 2 °C, RH 40–60 %, spray cycle 18/102 min. Values apply only to the test methods and conditions stated; they are not a warranty of service life.
Powder properties
Resin chemistryWeather-resistant polyester resin with matched hardener
Specific gravity1.2–1.7 g/cm³ (depends on colour)
AppearanceFree-flowing powder
ColoursFull colour range including metallic shades
VOCEssentially no VOC emission during application; RoHS-tested (SGS)

Application parameters

Application methodElectrostatic spray, 40–100 kV
Cure schedule190–200 °C (374–392 °F) for 10–15 minObject (metal) surface temperature, not oven set-point
Film thickness80–120 µm recommended; 80–180 µm working range
AppearanceFree-flowing powder
Packaging25 kg carton, non-hazardous for transport
StorageCool, dry, below 35 °C (low-temperature-cure grades below 25 °C)
Shelf life6 months

Cure temperature is the object surface temperature. Oven set-points must be adjusted to the part mass, line speed and oven type so that the metal itself reaches 190–200 °C for 10–15 minutes. Pretreatment must meet the agreed specification; film thickness and application method influence colour, gloss and appearance, and laboratory panels differ from production parts, so gun settings are finalised on the customer's line.

Where P1680 series is used

P1680 is specified where the coating must hold colour, gloss and adhesion through the longest salt-spray and humidity exposures in WANAN's polyester range: coastal and industrial-atmosphere enclosures, photovoltaic and energy-storage structures, outdoor telecom and power cabinets, architectural hardware on exposed façades and outdoor furniture in wet climates. The series name is a product designation and does not represent a 1680 h salt-spray result; the tested value is 1000 h under ISO 9227.

Typical applications

Compliance & quality system

WANAN powder coatings are produced under quality, environmental and occupational-health management systems certified to ISO 9001:2015, ISO 14001:2015 and ISO 45001:2018, and the design and manufacturing of thermosetting powder coatings is certified to IATF 16949:2016. Batch testing is carried out in WANAN's in-house laboratory, accredited by CNAS (L15415) to ISO/IEC 17025:2017.

SGS reports (2026) on WANAN powder coating samples show compliance with RoHS Directive (EU) 2015/863, REACH SVHC candidate list screening at ≤ 0.1 % (w/w), soluble heavy metals, and California Proposition 65 limits for lead, cadmium and phthalates. Results apply to the tested samples; see certifications & compliance for report numbers and scopes.

Colours & finishes

Full colour range including metallic shades. RAL K7 shades, custom colour matching from a sample panel, and gloss levels agreed per project (measured at 60°, ISO 2813). WANAN maintains a library of roughly 100,000 formulated sample panels, which shortens matching time for repeat and near-match colours. See colours & finishes.

Packaging, storage & supply

  • 25 kg cartons; non-hazardous for road, sea and air transport.
  • Store in a cool, dry place below 35 °C; 6-month shelf life from date of manufacture.
  • Produced across 7 production bases in China and Southeast Asia with a group capacity of about 80,000 t/year.
  • Minimum order quantity, lead time and Incoterms are confirmed per project on request.

Frequently asked questions

Does the name P1680 mean 1680 hours of salt spray?

No. P1680 is a series designation. The tested neutral salt spray result in the TDS is 1000 h (ISO 9227), with 720 h humidity (ISO 6270-1) and 1000 h xenon-arc weathering (ISO 16474-2). WANAN does not present the series name as a super-durable certification grade; project qualification is based on the TDS values and the customer's own test programme.

What substrates is P1680 tested on?

The TDS values are generated on 70 × 150 × 0.6–0.8 mm phosphated steel panels, with 0.2–0.3 mm panels for flexibility, impact and cupping. On aluminium, galvanised steel or other pretreatments, performance depends on the conversion coating and film build, so WANAN recommends trial panels from the customer's actual line before specification.

Is P1680 suitable for coastal energy-storage cabinets?

P1680 is a candidate topcoat for coastal or industrial-atmosphere enclosures because it carries the highest salt-spray and humidity values in the range. For severe C4–C5 environments an EZ zinc-rich primer under P1680 is often specified, and the two-coat system is qualified on trial panels. For UL 1332 recognized enclosure coatings, model WA-DQ 001A is evaluated separately.

Downloads

Performance data are valid only for the test methods, panels and cure conditions stated. They do not constitute a service-life warranty. Combined primer/topcoat systems must be qualified as a system.

Talk to our technical team

Send the substrate, service environment and your current cure window. We reply with candidate series, TDS and sample options.