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702 Epoxy zinc workshop primer
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Details

The composition consists of zinc powder, epoxy resin and polyamide curing agent, etc..
The main characteristics of zinc powder has cathodic protection, excellent anti-rust performance, dry film 20 μm maintenance period of about nine months; Dry fast, only a short time can be moved, stacked and painted back road paint; It has good heat resistance and has a small burning area when welding and cutting. Excellent adhesion and impact resistance; Excellent wear resistance; Good oil resistance, water resistance and solvent resistance; The thickness of the paint film is within the specified range and does not affect the welding performance; Can be matched with most paint systems; Recognized by the China Classification Society.
The purpose is to use the pretreatment pipeline such as shipyard, heavy machinery factory, and steel structure factory as workshop primer, and the maintenance period is nine months.
Appearance gray no light
Construction parameter volume solid volume 53 ± 3 %(as determined by GB / T9272 eqv IS 03233 :1988)(after mixing)
Composition A: Component B = 91:9(weight ratio)
Dry film thickness 20 μm
Wet film thickness 38 μm
Theoretical usage of 89g/m2
Flash point A component(base) 5 °C; Part B(curing agent) 5 °C
Ripening time(mixed)(25 °C) 30 min
Drying time(25 °C) Table dry ≤ 5 min dry ≤ 24 H completely curing 7D pipeline drying time(steel Preheat 50 °C, oven temperature 120 °C) ≤ 5 min
It is recommended to cover 1 track, dry film thickness 15-20 μm
The posterior coating is used in conjunction with coatings such as chlorinated rubber, epoxy, epoxy asphalt, asphalt, and epoxy, but it can not be used in conjunction with oily, alkyd, and polyester paints.
Surface treatment Steel sandblasting treatment to S02.5, surface roughness 30-75 μm
Under construction conditions, the substrate temperature must be higher than 3 °C above the dew point; When the temperature is below 5 °C, the curing reaction between epoxy and curing agent stops, and it is not suitable for outdoor construction. Relative humidity not more than 85 %
Painting Method
No gas spray thinner 106 thinner; Dilution 0-10 %(by paint weight); The nozzle diameter is 0. 4-0 .5 mm; Ejection pressure 15 MPa(approximately 150 kg/cm2)
Air spray thinner 106 thinner; Dilution 0-10 %(by paint weight); Mouth diameter 2. 0-2 .5 mm; Air pressure 0.3-0. 6MPa(3-6 kg/cm2)
Rolling / Brush is limited to small area repair; diluent 106 diluents; Dilution 0-3 %(by paint weight)
Cleaning agent 103 diluent
Safety measures refer to the product safety technical specifications of Zhongsheng Paint(Ningbo) Co., Ltd..
Note that zinc rich primers can form zinc salts(ie, alkali zinc carbonate, also known as white rust) on the surface after prolonged exposure outdoors. They should not be exposed for a long period of time before painting. If the painting interval is longer, it is recommended to paint rust proof paint as soon as possible after the section is formed to reduce the amount of work of secondary rust removal; Zinc salt does not form on the surface of the paint film for several months in a clean indoor environment or within 14 days in a clean outdoor environment. However, in an industrial atmosphere or maritime climate, zinc salts will soon be produced, so the interval between painting and painting should be shortened as much as possible; In the surface with zinc salt, the cleaning grade sandblasting or mechanical rust removal method should be used for secondary rust removal, and all debris should be removed; When Jijieshigong is at high temperature, dry spraying is easy to occur. To prevent dry spraying, it must be diluted with a thinner until it is not dry
Packaging A component(base material) 20L bucket is equipped with 32.5 kg; Part B(curing agent) 4L barrel 3.2 kg
Warranty period 12 months
Remark for the correct use of our products, please read this manual carefully the "supporting plan."
The information and data on this product is based on our experience in testing and practical use and can be used as a construction guide. We are only responsible for the quality of the paint itself for the construction that we do not understand. We shall have the right to modify this instruction according to the continuous improvement of the product.