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Bule Color Valve Epxoy Powder Coating Corrosion Resistant Environmental

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Bule Color Valve Epxoy Powder Coating Corrosion Resistant Environmental

Country/Region china
City & Province tianjin tianjin
Categories Welding Equipment

Product Details

 

Bule Color Valve Epxoy Powder Coating Corrosion Resistant Environmental

 

The thickness of valve is thick and uneven, the shape of valve is irregular, therefore it is hard to heat valve. When moved, it occur collision which cause destroying the coating. According to the characteristics of the valve, we develop special powder coating for the valve.

 

The features of coating:

  1. Excellent adhesion, impact resistance and scratch resistance, the valve under the condition of normal collisions, there will be no damage.
  2. Baking condition: 160℃/15--20min or 180℃/10min, this powder coating is suitable for low temperature curing to improve the effective of painting and save energy.
  3. Specular color, good flow, no tag, good cover for corner, the thickness of coating is 100μm.
  4. Solve the antifoaming problem for cast iron valve.
  5. Supply all kinds of colors and textures according to the customer required.

 

CompositionIt is made of modified epoxy resin, curing agent, pigment, filler and other additives through processing.

 

 

 

Main features

Convenient coating, good curing speed, high working efficiency and applicable to assembly line work

Hard, durable coating, good impact resistance, adhesive force, protection within large temperature range and long-term anti-corrosive effect;

Good flexibility and anti-bending performance, and resistance to cathodic disbanding;

Good resistance to chemicals, solvent, water, sewage and sea water.

ApplicationIt is applicable to the coating of long-distance pipelines, steel bar for construction and pipelines with flanges, elbows, valves, pumps, etc.
Product seriesPowders in different colors can be made according to customers’ requirements.

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Technical indexes

  
1. Quality index of anti-corrosive epoxy powder paint
AppearanceUniform gloss and no block
Density g/m³1.3-1.5
Granularity distribution150 μm, powder on sieve ≤ 3.0, 250 μm, powder on sieve ≤ 0.2
Gel time (s)180℃≤90 200℃≤30
Content of nonvolatile matter %≥99.4
Horizontal flowability22-28
Content of magnetic material≤0.002
2. Quality index of anti-corrosive epoxy powder paint layer
AppearanceSmooth surface, uniform gloss, no bubbles, cracks or shrinkage. Slight orange peel is allowed.
Adhesive force (prying and stripping method)1-3
Bend resistance 2.5The coating is free from cracks (ambient temperature)
Strength for 1.5 J impact resistanceWithout pin hole
Abrasive resistance (shakeout method) L/mg≥3
Film thickness μmCommon type: 300-400, the improved type: 500±50
Cathodic disbanding 24 h or 48 hmm≤8
Section porosityGrade 1-2
Bonding plane porosityGrade 1-2
Volume resistivity Ω.M≥1×1, 013
Electrical strength mv/m ≥30≥30
Curing condition180℃≤5 230℃≤1.5
Method of ApplicationIt is applicable to high voltage electrostatic spraying

 

 

 

 

 

 

 

 

Parameter of Application

1. Technological process for powder paint

External storage----- high temperature quick burning----- shot (sand) blasting treatment----- pre-heating pipelines

----- powder coating----- cooling----- inspecting----- additional coating----- finished products

2. External spraying and coating procedure

(1) Getting rid of oil, rust, loose sediment, water, etc.

(2) After treatment of blast cleaning or slot blasting, the surface should reach Grade Sa 2.5 and the profile depth is 40-100μm. The surface dedusting should reach near-white grade.

The new or old sand should be added uniformly in order to keep the proportion stable.

(3) Pre-heat work pieces, the temperature of which should be controlled within 180-240℃ but does not exceed 260℃.

(4) Coat the internal anti-corrosive powder paint on surface of work pieces till the required thickness is reached.

(5) Deal with curing according to requirements.

(6) Cool coating.

(7) Inspect surface when the temperature of work piece is below 95℃.

(8) Additional coating of omitted part.

 

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