Waterborne Graphene Zinc Primer-Holy Hong Chemical (Dalian) Co., Ltd.

Waterborne Graphene Zinc Primer

Home page

Request a quote now ShenghongChemical@gmail.com

I. Product Description

This product is composed of waterborne hyperbranched acrylic emulsion, water-based additives, high-quality fillers, and water. It boasts numerous advantages, including low VOC content, fast drying of the paint film, high construction efficiency, excellent adhesion, rich film texture, and excellent weather resistance.

II. Recommended Uses

Primarily used for surface coating of plastic components such as ABS, PC, HIPS, and AS, which are commonly found in home appliances, computers, automotive parts, electric vehicles, daily-use products, and more.

III. Physical Parameters

Project	Instructions
Color	Agreed upon
Glossiness	There is light.
Volume solid content	38 ± 2% (varies depending on color)

Temperature	Drying time	Coating interval
	Surface dry	Hard work	Minimum	Maximum
25℃	30 minutes	3 hours	5 hours	6 months

The above data were measured under conditions of a dry film thickness of 30 microns and a relative humidity of 40–60%. Higher coating film thickness, insufficient ventilation, high humidity, or lower temperatures will all extend the drying time.

4. Film Thickness and Coating Rate

Dry film thickness: 25–50 microns
Theoretical coating rate: 12.6 m²/L @ 30 microns
Actual coating rate: Allow for an appropriate loss factor.

V. Construction Reference

Mixing ratio: Single-component
Air spraying: Recommended, nozzle diameter 1.0 mm
Airless spraying: Recommended nozzle diameter: 0.27–0.38 mm; filter mesh size: 120 mesh.
Brush application: Suitable for pre-coating and small-area repairs.
Roller application: Suitable for small-area repairs; using a short-nap roller can achieve a better finish.
Diluent: Clean tap water
Dilution ratio: For airless spraying, brush coating, or roller coating: 0–5%; for air spraying: 0–5%.
Storage instructions: After use, any leftover paint should be promptly sealed and stored to prevent skinning and ensure proper usability.
Cleaning the equipment: Immediately after use, clean the equipment with fresh water. It is also recommended to periodically rinse the spraying equipment during the construction process.
Work stoppage: Do not leave paint in the paint tube, spray gun, or spraying equipment. Thoroughly rinse the equipment with clean water.

6. Surface Treatment

Oil and grease shall be solvent-cleaned according to SSPC-SP1 standards, blast-cleaned to Sa2.5 grade or power-tool cleaned to St3 grade, with a surface roughness of 40–70 microns, and the surface shall be kept clean and dry.

Due to the nature of water-based coatings, they tend to flow away from sharp edges and corners, creating a “corner effect.” To protect these edges and corners from corrosion, it’s necessary to smooth them down and apply a primer coat beforehand.

Before construction begins, all surfaces must be assessed and prepared in accordance with ISO 8504. When applying water-based coatings, it is crucial to strictly adhere to all cleanliness standards.

VII. Precautions

During construction and drying, the ambient temperature should ideally be above 10℃ with relative humidity below 80%. The substrate temperature should be at least 3℃ higher than the dew point, and adequate ventilation must be ensured. Avoid outdoor construction during nighttime when temperatures are low, especially in seasons prone to condensation or rainfall.

Primer coat: Water-based alkyd primer, water-based epoxy primer, etc., can be selected; it can also be applied over solvent-based coatings, but compatibility testing is required. For specific matching recommendations, please consult Holy Hong’s technical sales engineers.

The durability of water-based paints largely depends on proper application. For instance, sharp edges, rivets, and areas with spot welding require extra care during application to avoid excessively thick paint films with each coat; it’s best to apply an additional coat for further refinement.

Preparation and Cleaning Steps for Construction Equipment:

To prevent water-based coatings from being contaminated by solvents, the spraying equipment must be thoroughly cleaned before use. All equipment that comes into contact with solvents—such as pumps, pipes, and guns—must be completely cleaned according to the steps outlined below.

Before spraying: Circulate and flush the equipment and pipelines with the original solvent-based paint thinner, then use Holy Hong No. 1 thinner, and finally rinse with clean freshwater.

If the construction equipment is made of stainless steel and is specifically designed for applying water-based coatings, this preparation and cleaning work is not required.

8. Storage and Warranty

During storage and transportation, always take care to protect the product from freezing. The recommended storage temperature is between 4°C and 25°C; store it sealed in a cool place, with a shelf life of 12 months.

9. Health and Safety

Since the paint liquid is not harmless, effective measures should still be taken to prevent skin and eye contact with the coating (such as wearing work clothes, gloves, goggles, face masks, and protective oils). If the product accidentally comes into contact with the skin, thoroughly wash it off with warm water and soap or an appropriate industrial cleaner. If the eyes are contaminated, rinse them with clean water for at least 10 minutes and seek medical attention immediately. It is recommended to wear a respirator equipped with ventilation to avoid inhaling paint mist and harmful volatile substances, especially when working in poorly ventilated environments. Disposal of paint waste must comply with national and local regulations.

You can send it to us by filling out the form, and we’ll get in touch with you!