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NH professional protective coatings.

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Powder Paint for Casting Parts

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NH was established in 2004, and its predecessor was a joint venture with Germany to produce and sell automotive paint. At present, the products are diversified, mainly with professional chemical sales companies such as automotive paint, ind
Product Details

Composition

It is made of epoxy resin or polyester resin, curing agent, pigment, filler and additives through melting, extruding, grinding and processing.

Main features

● Bubble-free and good leveling property;

● High gloss;

● Good physical and mechanical performance and resistance to chemicals and heat; and

● Good adhesive force.

Application

It is applicable to the coating of products that easily produce bubbles in curing such as casting pipes and casting parts.

Product series

It can be made into a series of products with different colors and metal flashing effects, such as products with aluminum powder color, bronze powder color, pearl powder color, etc. according to customers’ requirements.

Technical indexes




Residue on sieve %125μm

0 or based on negotiation


Color and appearance of paint film

The paint film should be smooth but slight orange peel is allowed and the color should meet the color difference specified.


Hardness

≥2 H


Gloss (60°)

High gloss ≥86, semi gloss 21-85, matt ≤20


Bending mm

2


Adhesive force (1×1 mm) Grade 6×6

0


Impact resistance kg.cm

≥40


Acid resistance (HCI 3%)240 h

The film has no change


Alkali resistance (NaOH 5%) 168 h

Slight change is allowed but it shall be recovered within 2h


Salt spray resistance 400 h

≤ Grade 1


Damp-heat resistance 500 h

≤ Grade 1


Film thickness μm

50~60

Surface prepartion

The corresponding treatment method should be used based on the substrates, such as phosphating, chromizing, shot blasting or blast cleaning

1. The surface roughness should be 30 ~75 μm if reaching Grade Sa2.5 by shot blasting or blast cleaning.

2. Phosphating: degreasing- derusting- neutralizing- surface control- phosphating- passivating

Appearance of phosphating film: The phosphating film should be crystallized densely, continuously and evenly.

3. Chromizing: degreasing- rinsing- immersion cleaning- deoxidating- rinsing- chromizing

Method of Application

It is applicable to high voltage electrostatic spraying

Spraying voltage: 50-90 kV; air pressure for spraying: 0.1-0.2 Mpa; distance between the gun and workpiece: 200-300 mm

Curing condition: 180-200℃/10-15 minutes or customized according to customers’ requirements.

Additional coating:different measures should be taken for the specific conditions: 1. If the requirements are not high, paints with the same color can be used for additional coating; 2. In case of high requirements, spraying and curing should be made after polishing the omitted part with sand paper and spraying the whole surface.

Safety measures

The inhalation of dusts should be avoided when using the powder paint regardless of the non-toxic features. Operators are suggested to wear suitable dust masks and protective goggles. If possible, never touch the powder paint for a long time and remove the paint on skin with soap.

Storage period

It should be stored in a dry and well ventilated place under 30℃ and avoid direct sunshine; the warranty period of the product lasts for 18 months since the date of production. Re-inspection should be made if it exceeds the specified period. The products exceeding the specified period can still be used as long as they meet the requirements.

Note:

1. The coated surface should be clean, and free from water, acid, alkali or oil;

2. All tools used during the application should be dry and clean;

3. It is a MUST to use the powder paint of the same variety in the same kind and mixing with other varieties is strictly prohibited;

4. The curing condition should meet the specified requirements; otherwise, the film cannot meet requirements. The temperature for curing refers to actual temperature of workpiece and the time refers to the insulation time after the workpiece reaches specified temperature; and

5. The application site should be well ventilated and protective equipment required should be worn.

Remarks

In order to use this project correctly, please read Product Manualcarefully.

Statement

The materials and data of products above are obtained through tests and experience, and thus can be used as application guidance. Since the service conditions of products are not controlled by us, we do not guarantee the information above. We shall have the rights to modify the Product Manual according to the constant improvement of the product.

Powder Paint for Casting Parts
Powder Paint for Casting Parts

Powder Paint for Casting Parts

share

Share to WeChat

×

Please use the browser share function
Share to WeChat

NH was established in 2004, and its predecessor was a joint venture with Germany to produce and sell automotive paint. At present, the products are diversified, mainly with professional chemical sales companies such as automotive paint, ind
021-54880584
Product Details

Composition

It is made of epoxy resin or polyester resin, curing agent, pigment, filler and additives through melting, extruding, grinding and processing.

Main features

● Bubble-free and good leveling property;

● High gloss;

● Good physical and mechanical performance and resistance to chemicals and heat; and

● Good adhesive force.

Application

It is applicable to the coating of products that easily produce bubbles in curing such as casting pipes and casting parts.

Product series

It can be made into a series of products with different colors and metal flashing effects, such as products with aluminum powder color, bronze powder color, pearl powder color, etc. according to customers’ requirements.

Technical indexes




Residue on sieve %125μm

0 or based on negotiation


Color and appearance of paint film

The paint film should be smooth but slight orange peel is allowed and the color should meet the color difference specified.


Hardness

≥2 H


Gloss (60°)

High gloss ≥86, semi gloss 21-85, matt ≤20


Bending mm

2


Adhesive force (1×1 mm) Grade 6×6

0


Impact resistance kg.cm

≥40


Acid resistance (HCI 3%)240 h

The film has no change


Alkali resistance (NaOH 5%) 168 h

Slight change is allowed but it shall be recovered within 2h


Salt spray resistance 400 h

≤ Grade 1


Damp-heat resistance 500 h

≤ Grade 1


Film thickness μm

50~60

Surface prepartion

The corresponding treatment method should be used based on the substrates, such as phosphating, chromizing, shot blasting or blast cleaning

1. The surface roughness should be 30 ~75 μm if reaching Grade Sa2.5 by shot blasting or blast cleaning.

2. Phosphating: degreasing- derusting- neutralizing- surface control- phosphating- passivating

Appearance of phosphating film: The phosphating film should be crystallized densely, continuously and evenly.

3. Chromizing: degreasing- rinsing- immersion cleaning- deoxidating- rinsing- chromizing

Method of Application

It is applicable to high voltage electrostatic spraying

Spraying voltage: 50-90 kV; air pressure for spraying: 0.1-0.2 Mpa; distance between the gun and workpiece: 200-300 mm

Curing condition: 180-200℃/10-15 minutes or customized according to customers’ requirements.

Additional coating:different measures should be taken for the specific conditions: 1. If the requirements are not high, paints with the same color can be used for additional coating; 2. In case of high requirements, spraying and curing should be made after polishing the omitted part with sand paper and spraying the whole surface.

Safety measures

The inhalation of dusts should be avoided when using the powder paint regardless of the non-toxic features. Operators are suggested to wear suitable dust masks and protective goggles. If possible, never touch the powder paint for a long time and remove the paint on skin with soap.

Storage period

It should be stored in a dry and well ventilated place under 30℃ and avoid direct sunshine; the warranty period of the product lasts for 18 months since the date of production. Re-inspection should be made if it exceeds the specified period. The products exceeding the specified period can still be used as long as they meet the requirements.

Note:

1. The coated surface should be clean, and free from water, acid, alkali or oil;

2. All tools used during the application should be dry and clean;

3. It is a MUST to use the powder paint of the same variety in the same kind and mixing with other varieties is strictly prohibited;

4. The curing condition should meet the specified requirements; otherwise, the film cannot meet requirements. The temperature for curing refers to actual temperature of workpiece and the time refers to the insulation time after the workpiece reaches specified temperature; and

5. The application site should be well ventilated and protective equipment required should be worn.

Remarks

In order to use this project correctly, please read Product Manualcarefully.

Statement

The materials and data of products above are obtained through tests and experience, and thus can be used as application guidance. Since the service conditions of products are not controlled by us, we do not guarantee the information above. We shall have the rights to modify the Product Manual according to the constant improvement of the product.

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