What can be evidenced — stated exactly
Certificate numbers, certified scope, laboratory names, accreditation numbers, report numbers and measured results. Published in full, including the limits of what each document proves.
ISO 9001 · ISO 14001 · ISO 45001
All three certificates were issued on the same date by the same accredited certification body and carry the same certified scope.
| Standard | Certificate No. | Date of issue | Valid until |
|---|---|---|---|
| ISO 9001:2015 / GB/T 19001-2016 — Quality Management System | 86725Q10362R0S | 18 September 2025 | 17 September 2028 |
| ISO 14001:2015 / GB/T 24001-2016 — Environmental Management System | 86725E10363R0S | 18 September 2025 | 17 September 2028 |
| ISO 45001:2018 / GB/T 45001-2020 — Occupational Health and Safety Management System | 86725S10364R0S | 18 September 2025 | 17 September 2028 |
- Certification bodyJiangsu Ruishuang Certification Co., Ltd.
- AccreditationCNAS C314-M · IAF MLA member
- Surveillance requirementBefore 17 September 2026
- Verificationcnca.gov.cn
Certified scope, as printed: sale of anti-corrosion and wear-resistant materials, coatings (excluding hazardous chemicals), sealing components and fire-stopping materials, and the associated environmental / occupational health and safety management activities at those premises.
Where a project specification requires certification of manufacturing activities, confirm the required scope wording with us before tender submission.
Eight independent laboratory reports
Products in the wrapping range have been tested by independent CMA / CNAS accredited laboratories in China between 2024 and 2026. A faithful English transcription of every report is published, and the original Chinese report with laboratory stamps is supplied in full on request.
| Sample tested | Report number | Laboratory | Issued | English transcription |
|---|---|---|---|---|
| Petrolatum (Ester) Oil-Based Anti-Corrosion Tape | CTICAQ4512401550823164BR | CTIC Testing Technology (Guangdong) Group CMA 202319017008 · CNAS L19533 · ILAC-MRA | 18 July 2024 | PDF → |
| Petrolatum Tape Primer | CTG2410221378A_SR178AC | Shenzhen Third-Party Testing Technology | 11 October 2024 | PDF → |
| Petrolatum Sealing Mastic | CTG2410221378A_SR179AC | Shenzhen Third-Party Testing Technology | 11 October 2024 | PDF → |
| Viscoelastic Anti-Corrosion Tape | CTG2410221378A_SR180AC | Shenzhen Third-Party Testing Technology | 11 October 2024 | PDF → |
| Refined Wax Anti-Corrosion Tape | J25C12220188BR | Shenzhen Jinglian Testing CMA 202219016678 · CNAS L18543 · ILAC-MRA | 3 January 2025 | PDF → |
| PE Anti-Corrosion Tape (including matching primer) | CTG2409251378A_SR177AC | Shenzhen Third-Party Testing Technology | 11 October 2024 | PDF → |
| PP Anti-Corrosion Tape and Primer | CTG2410221378A_SR176AC | Shenzhen Third-Party Testing Technology | 11 October 2024 | PDF → |
| UV-Resistant Sealing Anti-Corrosion Tape (Aluminium Foil Outer Wrap) | CBT30406071071 | Guangdong Baotong Quality Testing | 30 March 2026 | PDF → |
Requirement against result
Reproduced from the reports without rounding, conversion or reinterpretation.
Petrolatum anti-corrosion tape
| Test item | Unit | Requirement | Result | Test method |
|---|---|---|---|---|
| Breakdown voltage (55 % overlap) | kV | ≥ 15 | 18.2 | GB/T 1408.1-2006 |
| Breakdown voltage (single layer) | kV | > 12 | 13.2 | GB/T 1408.1-2006 |
| Breaking strength | N/50 mm | ≥ 100 | 200 | GB/T 3923.1 |
| Elongation at break | % | ≥ 10 | 30 | GB/T 1040 |
| Petrolatum or paraffin content | % | ≥ 50 | 60 | GB/T 30788-2014 Annex 1 |
| Drop melting point | °C | ≥ 55 | 90 | GB/T 8026 |
| Flash point | °C | ≥ 150 | 180 | GB/T 3536 |
| Water vapour transmission | mg/cm²·24 h | — | ≤ 0.165 | GB/T 1037 |
| Neutral salt spray (1 000 h) | — | No rust | No rust | GB/T 10125 |
| 10 % HCl / 10 % NaOH / 20 % NaCl (7 d) | — | No abnormality | No abnormality | SY/T 0315-2005 Annex 1 |
| Flame retardant rating (China) | — | — | B | GB/T 8624-2006 |
The sample submitted was described in the report as a general petrolatum anti-corrosion tape and was not identified by model. The result is therefore presented as a related reference for the Marine, Industrial and Seawater grades, not as a test of one specific grade.
Viscoelastic anti-corrosion tape
| Test item | Unit | Requirement | Result | Test method |
|---|---|---|---|---|
| Tape thickness | mm | ≥ 1.8 | 1.85 | GB/T 6672-2001 |
| Peel strength to steel, −45 °C | N/cm | ≥ 50 | 84.5 | GB/T 2792-2014 (180°) |
| Peel strength to steel, 23 °C | N/cm | ≥ 2 | 9.9 | GB/T 2792-2014 (180°) |
| Peel strength to steel, 70 °C | N/cm | ≥ 0.2 | 2.0 | GB/T 2792-2014 (180°) |
| Adhesive coverage on steel, −45 / 23 / 70 °C | % | ≥ 95 | 100 / 100 / 100 | GB/T 2792-2014 (180°) |
| Sag (90 °C, 48 h) | — | No sag | No sag | GB/T 51241-2017 Annex A |
| Water absorption | % | ≤ 0.03 | 0.018 | SY/T 0414-2017 Annex B |
| Flame retardant rating | — | B | B | GB/T 8624-2006 |
| Impact, installed system with heat-shrink outer sleeve | J | ≥ 15 | 15 J, no holiday | GB/T 23257-2017 Annex L |
| Peel to steel, installed system, 23 °C | N/cm | ≥ 4 | 10.3 | GB/T 23257-2017 Annex K |
Microcrystalline wax anti-corrosion tape
| Test item | Unit | Requirement | Result | Test method |
|---|---|---|---|---|
| Petrolatum or petroleum wax content | % | ≥ 80 | 90 | AWWA C217 |
| Dielectric strength | V/mil | ≥ 170 | Complies | ASTM D149 |
| Breaking strength | N/m | ≥ 3 940 | Complies | ASTM D1000 |
| Elongation at break | % | ≥ 6 | 8 | ASTM D1000 |
| Drip temperature | °C | ≥ 60 | 75 | ASTM D127 |
| Flash point | °C | ≥ 150 | 160 | ASTM D92 |
| Water vapour permeability | perms | ≤ 0.25 | Complies | ASTM E96 |
| Water absorption | % | < 5 | 3 | ASTM D570 |
| Water resistance (38 °C, 24 h) | — | No visible change | Complies | ASTM D870 |
Polyolefin tapes and aluminium foil outer wrap
| Product | Measured property | Result | Report |
|---|---|---|---|
| PE Anti-Corrosion Tape | Backing tensile strength | 26.9 MPa | CTG2409251378A_SR177AC |
| Peel to primed steel | 34.06 N/cm | ||
| Volume resistivity | 5.60 × 10¹³ Ω·m | ||
| PP Fibre-Reinforced Tape | Backing tensile strength | 77.6 MPa | CTG2410221378A_SR176AC |
| Peel to primed steel | 42.8 N/cm | ||
| Electric strength | 16.4 kV/mm | ||
| Aluminium Foil Outer Wrap | UV ageing 3 000 h (GB/T 14522-2008) | No abnormality | CBT30406071071 |
| Neutral salt spray 3 000 h | Rust grade A, rust degree 0 % |
The rules we apply to our own documentation
A supplier's data is only worth as much as the discipline behind it. These are the rules the English document set is built on — including the cases where we decline to claim something.
Source precedence is fixed
Third-party test report → formal data sheet → technical file → catalogue → promotional material. Where a report and manufacturer data disagree, both are shown separately with their own source and test method. They are never merged or averaged.
Unsourced data is not published
A value with no traceable origin is removed rather than estimated or carried forward. Missing rows are deleted, not filled with a dash or a plausible number.
A test is a test, not a certification
Where a standard is only a test method we write "tested according to", never "certified to". Testing one property does not qualify a whole system, and testing tape does not qualify an installation.
Unattributed samples stay unattributed
Where a report does not state a product model, the sample name is kept as submitted and the result is shown as a related reference — it is not promoted to verification of a specific model.
Stated openly, because a buyer will ask. The ISO certificates cover the sale of anti-corrosion materials, not manufacturing — so we do not describe ourselves as an "ISO-certified manufacturer". The reports on the tape primer (SR178AC) and sealing mastic (SR179AC) do not name a product model, so they are presented as related family references rather than as verification of a specific primer or mastic grade. All current laboratory reports are from CMA / CNAS accredited laboratories in China; we do not hold SGS, BV, DNV or Lloyd's reports at present. If your tender requires one, tell us at enquiry stage.
SDS availability
Three safety data sheets are issued in English and downloadable directly. For the remaining products, SDS availability is confirmed with the factory on request — we would rather tell you that than issue a document we cannot stand behind.
Awards and ratings
| Award / rating | Note |
|---|---|
| China Engineering Construction Recommended Product | Anti-corrosion product series |
| China Anti-Corrosion Industry Top Ten Brands | Anti-corrosion product series |
| Quality Assurance National Standard Qualified Product | Anti-corrosion product series |
| AAA Enterprise Credit Rating | Corporate credit assessment certificate |
Need a document for vendor registration?
Original Chinese reports with laboratory stamps, full-resolution certificate scans and the business licence are supplied on request for qualified review.