1. 镀锌专用底漆 Special Primer for galvanizingAmount of the calculation

镀锌专用底漆 Special Primer for galvanizing Actual dosage and the shape of the workpiece, the construction method, the surface treatment method, the expected dry film thickness, and $ The gravity and bulk solid parts of镀锌专用底漆 Special Primer for galvanizingare highly correlated.

1. The parameters that need to be known first before determining the dosage:

Construction: the shape of the workpiece, the construction method, the surface treatment method, the expected thickness of the dry film.

Paint products: volume of solid parts, specific gravity.

2. Calculate the theoretical amount of epoxy zinc-rich primer.

With national standard 镀锌专用底漆 Special Primer for galvanizingfor example, the specific gravity is about 2.4kg / kg. The volume solid portion is about 66% (note that the bulk solid portion, not the mass solid portion, and not the zinc content, etc.).

The required dry film thickness is 50 μ m, then the theoretical coating rate is 5.5 ㎡ / ㎏; the theoretical dosage per square meter is 182g / ㎡; the coating rate calculation formula: (1000 * bulk solid) / (specific gravity * dry film thickness)

3. In the paint calculation tool, find out the corresponding loss coefficient, and you can know the actual dosage per square meter.

Large area: refers to the continuous large surface, such as the hull, deck, large boiler steel plate, etc.

Small area: refers to machine tools, large and medium-sized steel components, diameter above 80cm pipeline, etc.

4. According to the actual design film thickness, take the corresponding proportion to calculate the actual amount

If the film thickness is not given in the design, spray 40 μ m and 70 μ m.

For example, the user air spraying, plant steel structure, new steel, belong to the small area type, the required film thickness is 40 μ m, then found from the above table:

镀锌专用底漆 Special Primer for galvanizingThe actual dosage per square meter reference value: 0.232 kg / square meter, the area that can be coated per kilogram is: 4.3 square meters.

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Special primer for galvanizing is a primer specially used for surface coating of galvanized steel and has very good adhesion. The special primer for galvanizing has excellent chemical resistance and adaptability to the buried environment, good workability, good hardness and wear resistance.

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