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High-temperature anticorrosion coating, resistant to 300 degrees


DB-7G高温防腐涂料耐300度 一、 产品特点:   DB-7G高温防腐涂料涂层在高温条件下(300℃)具有良好的耐热性、耐油、耐酸性和耐剥离性及耐硝酸盐应力腐蚀等优异性能,可延长高炉、热风炉的使用寿命。 二、应用范围: 广泛用于化工的高炉 、热风炉内外壁及拱顶,也可用于烟囱、烟道、高温热气管道、热交换器及其它金属表面要求高温防腐的保护。 三、性能指标: 项目 指标 检验标准 漆膜外观及颜色 黑色、灰色,漆膜平整光滑 GB9761 粘度(SC涂-4#/20℃) 30-70 GB/T1723 附着力(划格法) 0 GB9286 耐腐蚀性 5%HNO3溶液煮15天无变化 GB/T 9274-88(浸泡法) 5%H2SO4溶液煮15天无变化 5%HCl溶液煮15天无变化 柔韧性,mm ≤1 GB/T1731 耐水性(40℃)240h 无明显变化 GB/T1733 冲击强度,kg,cm ≥50 GB/T1732 耐酸性,48h 无明显变化 常温浸于0.1HN2SO4溶液中 耐热性,300℃/500h 不起泡、不脱落,轻微变色 GB/T1735 耐候性,500h 失光率≤20%,色素▲E≤3.0NBS其余无明显变化 ASTMG53   四、施工参数: 1、施工条件:环境温度5℃~35℃,相对湿度≤80%。雨、雪及雾天不宜施工。 2、底材处理:喷砂处理至Sa2.5级,表面粗糙度35~70μm。 3、施工方法:推荐采用高压无气喷涂,也可采用空气喷涂、辊涂。 4、涂料配比:按重量比A:B=5:1,充分混合搅匀。 5、参考用量:200~220g/m2(干膜厚度不小于20μm)。 6、稀 释 剂:专用稀释剂,用量不超过涂料总重量的5%。 7、前道配套漆:硅酸锌防锈涂料。 五、安全防护: 1、施工前必须对参加施工的人员及管理人员进行安全教育。 2、涂料存放、搅拌及施工时,应注意通风,要严禁吸烟、明火,必须配备灭火器具,施工现场的电气设备、照明灯具及开关应选用防爆型。 3、施工人员应穿戴防护用品,当皮肤与涂料接触时,应及时用稀释剂擦净,然后用清水洗净。清洗容器或工具可用稀释剂,但用量不可过多,并须在通风处进行。 六、包装规格:     A组分20kg/桶,铁桶包装;B组分4kg/桶,铁桶包装。 七、贮存期限: 贮存在阴凉、通风、干燥处,保质期为一年。超过保质期的涂料经检验合格后方可使用。    

  • Product Description
  • DB-7G High temperature Anti-corrosion Paint resistance 300 Degree

    I. Product Features:

      DB-7G High temperature anti-corrosion The coating of high-temperature anti-corrosion paint has good heat resistance, 30 0℃ ) under high temperature conditions oil resistance, acid resistance, peel resistance and excellent nitrate stress corrosion resistance, which can prolong the service life of blast furnaces and hot blast stoves.

    II. Application range:

    Widely used in the inner and outer walls of blast furnaces and hot blast stoves in the chemical industry 、hot blast stoves inner outer walls and vault , and can also be used for chimneys, flues, high-temperature hot gas pipelines, heat exchangers and other metal surfaces requiring high-temperature anti-corrosion protection.

    III. Performance indicators:

    Item

    Index

    Test standard

    Paint film appearance and color

    Black Grey The paint film is smooth and flat

    GB9761

    Viscosity ( SC coating -4#/20 ℃)

    30-70

    GB/T1723

    Adhesion (cross-cut test)

    0

    GB9286

    Corrosion resistance

    5 % HNO3 Solution boil 15 No change for days

    GB/T 9274-88 (immersion method)

    5 % H2SO4 Solution boil 15 No change for days

    5 % HCl Solution boil 15 No change for days

    Flexibility, mm

    1

    GB/T1731

    Water resistance ( 40 ℃) 240h

    No significant change

    GB/T1733

    Impact strength, kg,cm

    50

    GB/T1732

    Acid resistance, 48h

    No significant change

    Immersed at room temperature in 0.1HN2SO4 solution

    Heat resistance, 300/500h

    No blistering, no peeling, slight discoloration

    GB/T1735

    Weather resistance '500h'

    Light loss rate 20%, Pigment ▲ E 3.0NBS No other significant changes

    ASTMG53

     

    IV. Construction parameters:

    1 Construction conditions: Ambient temperature 5℃ ~ 35℃ , relative humidity 80 %. Construction is not suitable in rainy, snowy or foggy days.

    2 Substrate treatment: Sandblasting to Sa2.5 level, surface roughness 35 ~ 70μm

    3 Construction method: High-pressure airless spraying is recommended, and air spraying and roller coating can also be used.

    4 Paint ratio: By weight ratio A : B=5 :1 , mix thoroughly.

    5 Reference dosage: 200 ~ 220g/m2 (Dry film thickness not less than 20μm )

    6 thin solution Agent: Special thinner, the amount shall not exceed 5 % of the total weight of the paint.

    7 Previous coating: Zinc silicate anti-rust paint.

    V. Safety protection:

    1 Before construction, safety education must be given to the construction personnel and management personnel.

    2 When storing, mixing and constructing the paint, pay attention to ventilation, prohibit smoking and open flames, and must be equipped with fire-fighting equipment. Explosion-proof electrical equipment, lighting fixtures and switches should be selected at the construction site.

    3 Construction personnel should wear protective equipment. When the skin comes into contact with the paint, it should be wiped clean with thinner immediately, and then washed with clean water. Cleaning containers or tools can use thinner, but the amount should not be too much, and it must be carried out in a ventilated place.

    VI. Packaging specifications:

    A Group Division 20kg/ Barrel, iron barrel packaging B Group Division 4kg/ Barrel, Iron barrel packaging.

    VII. Storage Period

    Store in a cool, ventilated, and dry place, with a shelf life of one year. Coatings exceeding the shelf life can only be used after passing inspection.

     

     

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