- Contact Person : Ms. Wang Jordan
- Company Name : Beijing Zema New Technology Co., Ltd.
- Tel : 86-10-52432239
- Fax : 86-10-59001905
- Address : Beijing,Beijing,Sanjianfang North Road, Chaoyang District
- Country/Region : China
gas pipe coating
| Items | Specifications | Test Method |
1 | Density Fineness | 1.8(g/cm3) ≤80(μm) | GB/T1724-79 |
2 | Viscosity (25°C) coat -4 viscometer | ≤30-60 | GB/T1723-79 |
3 | Solids Content | ≥95% | GB/T1725-79 |
4 | Drying Time(25+1°C) Surface Dry Actual Dry | ≤3 h ≤24 h | GB/T1728-79 |
5 | Adhesion Flexibility Impact Strength | level 1 2 mm ≥3.9 J | GB/T1720-79 GB/T1731-93 GB/T1732-93 |
6 | Appearance | Smooth and glossy | GB/T1729-79 |
7 | Hardness | ≥5 H | GB/T6739-86 |
8 | Shakeout Wear-resistance Test | ≥3 L/μm | SY/T0315-97 |
9 | Resistance to Chemical Reagents 10% H2SO4 3d 10%NaOH 3d 3% NaCl 3d | Coating is complete, no change | GB/T1763-79 |
10 | Resistance to Salt Mist 15%NaCl 120h Salt Mist Accelerated Test 3.5% NaCl 4000h | No change No change | GB/T1771-91 |
11 | Freeze-thaw Test (6h for-20+2°C,normal temperature ,70+2°C,5 loops) | Pass | SY/T0320-98 |
12 | Surface Resistivity | 1.0×1012Ω | GB/T1410-89 |
13 | Power Frequency Breakdown Strength Ozone(O3) resistance (10ppm Ozone,40°C,48h) | ≥20 KV/mm Coating in good condition | SY/T0447 |
gas pipe coating
