HC Screen Solar Energy Anti-corrosive Coating

1). Description of product:
HC screen solar energy anti-corrosive coating is composed of weatherproof synthetic resin, solar energy separator and auxiliary, etc. As a physical drying filming mono-component coating, the coat film is lower in absorbing solar energy and higher in heat discharge. The coat film is water repellent, and lower in steam and oxygen permeability, possesses excellent properties of waterproof, weatherproof and antichemicals, and well durability.
2). Designed usage:
The coating is used for outer anti-corrosion of liquefied gas and product oil tank. It could screen solar energy, notably reducing the speed of tank's temperature-rise due to sunlight, so the goal to cool down in summer, reduce oil/gas evaporating loss, and to be stored and transported safely is attained. When the house is coated, it absorb few solar energy, the room temperature is decreased.
The applying temperature: -40℃ ~ 100℃.
3). Main specifications:
Fig.1 Physical Performance of HC screen solar energy anti-corrosive coating
Item Unit Technical index Test method
Primer Intermediate Finish
Appearance Light grey or iron red Greyish white White Visual inspection
Viscosity(apply-4cups) 25℃ S≥ 50 60 60 GB/T 1723-93
Dry time h≤ Surface : 0.5Full dry: 24 Surface : 0.5Full dry: 24 Surface : 0.5Full dry: 24 GB/T1728-89
Fineness μm≤ 80 80 70 GB/T1724-89
Adhesion Grade 1~2 - - GB/T 1720-89
Flexibility Mm 1~2 1~2 1~2 GB/T1731-93
Impact J≥ 4.9 4.9 4.9 GB/T 1732-93
※ Absorbing of solar energy ≤ - - 0.20 GB/T 2680-94
※ Salt-mist proof - 500h, grade 1 GB/T 1771-91
※ Anti-humid/hot - 500h, grade 1 GB/T 1740- 89
※ ※ 3% NaCl - Non-variation at normal temperature 30d coat GB/T 1763-93
※ 15% H2SO4 - Non-variation at normal temperature 30d coat GB/T 1763-93
※ 15% NaOH - Non-variation at normal temperature 30d coat GB/T 1763-93
※ The test sample coats are complex coats of primer plus finish, the thickness ≥200μm.
4). Instruction for application:
4.1 Application condition: The applying is not effected by seasons, the relative humidity lower than 75 %. But work should be stopped when it rains, snows or it's foggy.
4.2 Surface treatment: for new steel structure, shot blasting to Grade Sa 2.5; for maintenance painting, rust is removed mechanically to Grade St3, clear away dust, iron chippings and greasy dirt after surface treatment, then paint in eight hours. The concrete surface should be coated only after the clearance of feculence and fully air-drying.
4.3 Applying method: Brush painting or spraying, the coating should be fully agitated before applying.
4.4 Repainting interval: ≥6 hours.
4.5 The structure of HC screen solar energy anti-corrosive coating:
Fig.2 Applying scheme
Applying surface Coat layer No. of applying Theory consumptionof coat (kg/m2) Total thicknessof coat (μm)
Surface of steel Primer 1~2 0.2~0.4 175~210
Intermediate 2 0.4
Finish 2 0.4
Surface of concrete Prime 1 0.2 ≥105
Finish 2 0.4
4.6 Thinner: The coating is used blending with thinner X-01A. The additive dosage of thinner is about 5 % of coating. In winter viscosity increases due to the cold weather, the dosage is about
10 %~20 % of coating consumption.
5). Packing, storage and transportation:
Packed and sealed in iron drum, the net weight is 20 kg±0.2 kg,Be stored in shady, cool, dry and well ventilated place, away from hot resource. Preventing raining and solarization in transportation, and should be in accord with standards of traffic department.
6). Storage period: The effective storage period at normal temperature is one year from the date of production.
7). Points for attention:
1. Fire is strictly prohibited on job-site, fire fighting tools should be seated at convenient site.
2. When lighting is needed at job-site, low-voltage power (12volt) should be employed.
3. Efficient ventilating and air exhausting is necessary at job-site.
4. The operator, when in bad ventilating work-site, should wear gas mask, and under the protection of special persons. If headache, heart-throb or nausea happens, leave the work-site immediately, take rest on well ventilated spot.
8). Product is accord with standards: Q/HHC 019-2003.