Used as a sealer over cold galvanizing, and also as an intermediate coat and sealer over high-performance anti-corrosive coatings such as epoxy zinc-rich primers and inorganic zinc-rich primers to enhance the barrier and protective performance of the entire coating system. A two-component epoxy intermediate coat composed of modified epoxy resin, micaceous iron oxide anti-corrosive pigment and amine curing agent, dedicated to sealing ZINDN cold galvanizing. Parameters on this page: Volume Solids 72 ± 2%, Dry Film Thickness 40/80/120 µm, Theoretical Spreading Rate 0.282 kg/m². Comparable models from the same brand: ZD100 Silane Impregnating Agent, ZD2551 Inorganic Hybrid Solvent-free Primer-Topcoat in One, ZD6153 Solvent-free Acid-resistant Mortar 28:KG.
Parameter source: ZINDN original Technical Data Sheet (TDS) “ZINDN Sealer ZH53-6”; values such as spreading rate are converted from TDS parameters and are for selection reference only.
The above content is compiled from the manufacturer's datasheet and this site's parameter tables. For selection, coating systems and lead times, pleaseContact Usfor confirmation.
This page carries the full TDS for this product, translated from the manufacturer's original document. No file download is needed; for an original-language copy, send an enquiry.
| Volume Solids | 72 ± 2% |
|---|---|
| Dry Film Thickness | 40/80/120 µm |
| Theoretical Spreading Rate | 0.282 kg/m² |
| VOC | — |
| Density / Specific Gravity | 1.7 ± 0.1 |
| Number of Components | Two-component |
| Flash Point | >25 °C (components A, B and the mixture) |
| Thinner | ZX-03 Thinner |
| Mixing Ratio | Component A (base) : Component B (curing agent) = 6:1 |
The manufacturer's datasheet for this model does not state the coating position or resin type, so it has not been assigned to the above categories. Browse similar products by category, orContact Usconfirm the coating system.
ZH53-6 ZINDN Sealer
A two-component epoxy intermediate coat composed of modified epoxy resin, micaceous iron oxide anti-corrosive pigment and amine curing agent, dedicated to sealing ZINDN cold galvanizing.
Good penetrating and sealing performance; good compatibility with cold galvanizing.
Due to the large content of lamellar micaceous iron oxide, a "labyrinth" effect is formed in the film, so the coating film has excellent barrier and anti-corrosion properties. Excellent resistance to chemical atmosphere, industrial atmosphere and marine atmosphere; good resistance to seawater, salt, weak acids and weak alkalis. Long recoating interval.
Used as a sealer over cold galvanizing, and also as an intermediate coat and sealer over high-performance anti-corrosive coatings such as epoxy zinc-rich primers and inorganic zinc-rich primers to enhance the barrier and protective performance of the entire coating system;
| Colour | Grey |
|---|---|
| Gloss | Matt |
| Volume Solids | 72±2% |
| Mixed density (kg/L) | 1.7±0.1 |
| Dry film thickness (µm) | Minimum 40 | Typical 80 | Maximum 120 |
| Wet film thickness (µm) | 55.5 | 111 | 166 |
| Theoretical spreading rate (kg/m²) | 0.094 | 0.188 | 0.282 |
| Practical Spreading Rate | Allowing for a suitable loss factor |
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| Primed surface | Clean, dry and free of zinc salts and contaminants. |
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| Bare steel surface | Remove grease from the surface with a suitable cleaner, and rinse off salts and other contaminants with fresh water. Remove weld slag, and grind welds and sharp edges smooth. Abrasive blast clean to Sa 2.5 (ISO 8501-1); the ideal surface roughness is Rz 30–75 µm (medium roughness on the ISO 8503-1 comparator). Apply within 4 hours of blast cleaning. |
| Shop-primed surface | Welds, heat-corrected areas and damaged areas must be blast cleaned to Sa 2.5 (ISO 8501-1) or cleaned with power tools to St 3. |
| Repair | Thoroughly remove grease from the surface with a suitable cleaner, and wash off salts and other contaminants with high-pressure fresh water. Remove rust and other loose material by blast cleaning; alternatively, grind small rusted areas with power tools. |
Application environment temperature 5–38 °C, relative humidity not more than 85%, and the steel surface temperature should be at least 3 °C above the dew point. Do not apply outdoors in adverse weather such as rain, fog, snow, strong wind and heavy dust;
During application and drying in confined spaces, substantial ventilation is required;
| Mixing | This product is supplied as two containers forming one unit. Stir the base thoroughly with a power mixer, add the curing agent in the specified ratio, stir again with a power mixer, and add the recommended thinner to adjust to a suitable application viscosity. Once mixed, use within the specified pot life. |
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| Thinner / Cleaning Solvent | ZX-03 Thinner |
| Mixing ratio (by weight) | Component A (base) : Component B (curing agent) = 6:1 |
| Induction Time | 15 min (25 °C) |
| 5°C | 15°C | 25°C | 35°C |
| 4 h | 3 h | 2 h | 1.5 h |
| Application Methods | Airless spray and air spray are recommended; brush and roller are recommended only for touch-up, small-area application or repair. |
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During application, stir frequently to prevent settling of fillers.
| Application Methods | Unit | High-pressure airless spray | Air Spray | Brush/roller |
| Spray gun tip size | mm | 0.43~0.53 | 1.5~2.5 | —— |
| Spray pressure | kg/cm² | 150~200 | 3~4 | —— |
| Thinning quantity | % | 0~10 | 10~20 | 5~10 |
| Substrate surface temperature | 5°C | 15°C | 25°C | 35°C |
| Surface Dry | 6 h | 3 h | 2 h | 60 min |
| Hard Dry | 48 h | 36 h | 24 h | 18 h |
| Minimum recoat interval | 48 h | 36 h | 24 h | 18 h |
| Maximum recoat interval | 3 months |
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Note: the above data are measured under well-ventilated conditions, at typical film thickness and 75% relative humidity, and are for reference only.
Actual drying times and the interval before recoating may be longer or shorter depending on film thickness, ventilation, humidity, the underlying paint, requirements for early handling and mechanical strength, and other factors.
| Preceding coat | Cold galvanizing primer, zinc silicate primer, epoxy zinc-rich primer or other epoxy primers, or may be applied directly to steel surfaces with surface preparation to Sa2.5. |
|---|---|
| Subsequent coat | Epoxy, polyurethane, fluorocarbon, polysiloxane topcoats, and similar. |
When overcoating ZINDN cold galvanizing or inorganic zinc-rich (zinc silicate) primer, apply a thin mist coat first, dry for more than 2 h, then spray to the specified film thickness. At low curing temperatures (below 10 °C), the coating must be thoroughly mixed and pre-reacted for 30 min before use. Due to the content of micaceous iron oxide pigment, long-term outdoor exposure may leave impurities on the relatively rough surface; the surface must be thoroughly cleaned before topcoating. During application, or shortly after application, condensation of water vapour or sudden temperature drop on the surface will cause the surface to turn white and tacky and degrade the adhesion of subsequent coats.
| Packaging Specifications | Component A 24 kg, Component B 4 kg |
|---|---|
| Flash Point | >25 °C (components A, B and the mixture) |
| Storage conditions | Store in accordance with national regulations. Keep in a dry, cool, well-ventilated place away from heat and sources of ignition. Keep containers tightly closed. |
| Shelf life | Shelf life is 1 year under good storage conditions. |
This product contains flammable materials; site safety must comply with the relevant national or local regulations. Read the safety labels on the packaging and the product Safety Data Sheet (MSDS).
Avoid inhaling solvent vapours and spray mist, avoid contact of paint with skin and eyes, and do not swallow the product. Take the necessary precautions and protective measures for fire prevention, explosion prevention and environmental protection. Use only in well-ventilated conditions. In confined or poorly ventilated areas, provide forced ventilation.
Waste disposal must comply with the relevant national or local regulations.
The information and data in this document are accumulated from our tests and practical experience and may serve as an application guide. Since the use of the product is generally beyond our control, we guarantee only the quality of the product itself. We reserve the right to modify this document without prior notice as the product is improved.
| Version information | Published in June 2022; this data sheet supersedes all previous versions |
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Information is subject to the manufacturer's latest version; the manufacturer's latest TDS prevails.
The technical parameters on this page are taken from the product's original manufacturer technical datasheet, the copyright of which belongs to the manufacturer. If a rights holder considers the presentation inappropriate, contact us for verification and handling.
For more Q&A on selection, application, acceptance and defect diagnosis, seeFAQsection.
Packaging specifications and batch lead times are subject to actual availability. PleaseContact Uscontact us for project-based calculation.
