01 / DOCUMENT
TESTING / REPORTS & RECORDS
Test reports
& experimental records
Explore material performance through original report pages, test conditions and experimental records. References are grouped by purpose and can be opened at full resolution.
Browse report pagesCOMMISSIONED TEST REPORT
Commissioned test report
WT2025B01C03158
Client-supplied report01 / ORIGINAL REPORT
The original report. The full context.
The report contains five pages. The cover and two data pages are reproduced here; open an original page to zoom or download.
02 / DOCUMENT
Test data page
03 / DOCUMENT
Test data page (continued)
Report details & commissioned test conditionsShow details＋
- Testing organisation
- China Testing & Certification International Group Co., Ltd. · National Research Center of Testing Techniques for Building Materials
- Report number
- WT2025B01C03158
- Commissioning party / Manufacturer
- Zhenkai New Materials (Shenzhen) Co., Ltd.
- Sample name
- Waterborne nano inorganic high-temperature anticorrosive coating
- Test category
- Commissioned testing
- Sample received
- 18 December 2025
- Test period
- 4 January – 3 February 2026
- Test conclusion
- See the data pages for results
Selected report resultsShow details＋
| No. | Test item | Result |
|---|---|---|
| 01 | Condition in container | Liquid: uniform after stirring, with no hard lumps. Powder: uniform and free of lumps. |
| 02 | Non-volatile content | 96.5% |
| 03 | Drying time | Surface dry: 20 min; through dry: 30 min |
| 04 | Coating appearance | Uniform spray finish; no cracking, flaking, peeling, fragments or chalking |
| 05 | Pencil hardness (4H) | 2H |
| 06 | Flexibility | mm; no cracking or peeling |
| 07 | Bend test | 2 mm; no cracking or peeling |
| 08 | Impact test | 50 cm; no cracking or peeling |
Extracts follow the client-supplied source. Refer to original report pages for complete results.
GROUP A / TEST RECORDS
Mechanical & surface properties
01Tinplate / Q235 steel panels
Impact resistance
50 cm/kg
Conditions & source details ＋
The coating remained intact under the stated 50 cm/kg impact condition. The supplied literature cites ≥400 h of post-impact salt spray as a pass and ≥600 h as excellent for inorganic zinc-rich primers.
02Bending / Creasing · Zhenkai laboratory test
Flexibility
No cracking at 2 mm
Conditions & source details ＋
No coating cracks were observed after a 2 mm bend. The supplied literature describes this as a benchmark for demanding heavy-duty protection, wind energy, steel structures and bridges.
GROUP B / TEST RECORDS
Corrosion & ageing
03Reaction-layer formation observed on Days 1 and 3
Water resistance
98°C / 4 hours
Conditions & source details ＋
Boiled at 98°C for 4 hours, followed by 250 hours of CASS. The literature states a salt-spray equivalent exceeding 2,000 hours, using 1 hour of CASS = 8 hours of neutral salt spray.
04CTC abrasion test / Zhenkai laboratory
Abrasion resistance
0.04 g
Conditions & source details ＋
Average abrasion loss was 0.04 g (750 g / 500 revolutions, 400-grit wheel). After 100 and 200 sanding strokes followed by 600 hours of salt spray, no rust was observed.
05Ageing: 1,000 h / 2,500 h
Ageing resistance
2,500 hours
Conditions & source details ＋
At 1,000 and 2,500 hours: no blistering, rust, cracking, chalking or flaking; gloss loss ≤10%.
GROUP C / TEST RECORDS
Heat & welding
06CASS testing at pull-off locations
Heat, pull-off & salt spray
Intact
Conditions & source details ＋
After 216 hours of CASS at the pull-off locations, international brands 1 and 2 showed rust while Zhenkai remained intact. The literature states an equivalent of 1,728 hours of neutral salt spray, using 1 hour of CASS = 8 hours of neutral salt spray.
07Weld CASS test
Accelerated CASS weld test
336 hours of CASS
Conditions & source details ＋
The literature states a salt-spray equivalent exceeding 2,600 hours. No weld rust was observed on either uncoated black-steel or rusty specimens.
GROUP D / TEST RECORDS
Substrate compatibility
08Rusty-panel cross-cut and pull-off / Corrosion spread ≤1 mm
Rusty-panel adhesion & corrosion spread
≥ 5 MPa
Conditions & source details ＋
Average pull-off values were 9.583 MPa (long panel) and 5.385 MPa (short panel). After cross-scribing and 96 hours of CASS, corrosion spread was <0.5 mm. After 96 hours of salt spray, pull-off adhesion was ≥3 MPa.
09CASS test · Sanding and wire-brush preparation
Salt-contaminated & rusty substrates
160 hours of CASS
Conditions & source details ＋
No colour change or corrosion was observed after 96 hours of CASS. At 160 hours, wire-brushed specimens showed rust spots; sanded specimens did not rust (164 hours of salt spray).
10Rusty-panel cross-cut and pull-off
Heat resistance on rusty panels
Pull-off ≥5 MPa
Conditions & source details ＋
Average pull-off adhesion on rusty specimens was 10.237 MPa, and 8.913 MPa after 400°C for 100 hours. No obvious peeling, flaking or discolouration was observed; no rust appeared after a subsequent 96-hour CASS test.
11Zinc, transition and rust layers / Water resistance + adhesion / 96 h CASS
Three-condition corrugated panel simulation
1,000 cycles
Conditions & source details ＋
After 1,000 cycles, no obvious peeling or fracturing was observed. Average pull-off adhesion was 4.985 MPa. No rust appeared after 96 hours of CASS, although slight alkali bloom was observed.
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Patent application documents
Patent application acceptance
Application no. 202611556996.3
Notice of substantive examination
Application no. 202610354423.6