ZH06-5 Inorganic Zinc Silicate Shop Primer is an inorganic zinc silicate paint, used as a primer. As a shop primer, used for short- to medium-term protection of blast-cleaned steel plates and other steel structures during storage, fabrication and construction. Especially suitable for locations requiring welding (inert gas shielded welding) and flame cutting. Parameters on this page: volume solids 33 ± 3%, dry film thickness 15/20/80 µm, theoretical spreading rate 0.364 kg/m². Comparable products of the same brand: ZD6310-N01P Epoxy Oil-resistant Antistatic Primer, ZD6317 Fast-drying Zinc Phosphate Epoxy Paint, Inorganic Zinc-rich Primer ZD2550.
Data source: ZINDN original Technical Data Sheet (TDS), "ZH06-5 Inorganic Zinc Silicate Shop Primer"; spreading rate and other values are converted from the TDS parameters, 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 | 33 ± 3% |
|---|---|
| Dry Film Thickness | 15/20/80 µm |
| Theoretical Spreading Rate | 0.364 kg/m² |
| VOC | ≤675g/L |
| Density / Specific Gravity | 1.5 ± 0.1 |
| Number of Components | Two-component |
| Flash Point | >25 °C (components A, B and the mixture) |
| Thinner | ZX06-5 Thinner |
| Mixing Ratio | Component A (base) : Component B (curing agent) = 2:1 |
ZH06-5 Inorganic Zinc Silicate Shop Primer
A two-component solvent-borne self-curing ethyl silicate shop primer; specially designed for automatic spray application. Especially suitable for locations requiring welding (inert gas shielded welding) and flame cutting.
A weldable primer with small burn-off width during welding and cutting, with heat resistance up to 400 °C.
As a shop primer, used for short- to medium-term protection of blast-cleaned steel plates and other steel structures during storage, fabrication and construction.
| Colour | Grey, red-grey |
|---|---|
| Gloss | Matt |
| Volume Solids | 33±3% |
| Mixed density (kg/L) | 1.5±0.1 |
| Dry film thickness (µm) | Minimum 15 | Typical 20 | Maximum 80 |
| Wet film thickness (µm) | 45 | 61 | 243 |
| Theoretical spreading rate (kg/m²) | 0.068 | 0.091 | 0.364 |
| Practical Spreading Rate | Allowing for a suitable loss factor |
|---|---|
| VOC content | ≤675g/L |
First remove grease and other contaminants from the steel surface with a suitable cleaning agent. Remove weld spatter and grind sharp edges, which can be done before surface preparation, then blast clean to Sa 2.5 (ISO 8501-1) with a surface roughness of 50–80 µm (Rz). Too low a surface roughness reduces film adhesion; excessively high roughness should also be avoided to prevent pitting.
Apply this product at a surface temperature above 0 °C and humidity above 50%; the substrate temperature must be above the dew point by 3 °C; the surface must be kept clean and dry.
Temperature and relative humidity shall be measured on the substrate close to the work point. Ethyl silicate zinc-rich paints normally require moisture for the curing reaction. At low ambient humidity (below 65%), lightly spray a little (fresh) water mist onto the coating to promote curing, or artificially humidify the air (increase ambient humidity). Before overcoating, the coating must be fully cured, otherwise adhesion to the subsequent coat may be inadequate.
Do not apply outdoors in adverse weather such as rain, fog, snow, strong wind and heavy dust;
In hot summer weather, guard against dry spray; provide ample ventilation during application and drying in confined spaces;
| 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. |
|---|---|
| Thinner / Cleaning Solvent | ZX06-5 Thinner |
| Mixing ratio (by weight) | Component A (base) : Component B (curing agent) = 2:1 |
| Induction Time | 20 min (25 °C) |
| 5°C | 15°C | 25°C | 35°C |
| 10 h | 8 h | 6 h | 4 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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Stir frequently during application to prevent settling of the zinc dust.
| Application Methods | Unit | High-pressure airless spray | Air Spray | Brush/roller |
| Spray gun tip size | mm | 0.38~0.53 | 1.5~2.5 | —— |
| Spray pressure | kg/cm² | 150~200 | 3~4 | —— |
| Thinning quantity | % | 15~30 | 20~35 | 5~10 |
| Substrate surface temperature | 5°C | 15°C | 25°C | 35°C |
| Touch Dry | 7 min | 5 min | 3 min | 2 min |
| Hard Dry | 1.5 h | 1 h | 30 min | 20 min |
The curing speed depends on humidity conditions; the degree of cure can be tested with MEK (or thinner) per ASTM D 4752. A coin should scrape a metallic sheen on the fully cured surface, but the coating should not be soft.
Note: the above data are measured under well-ventilated conditions, at typical film thickness and 65% 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.
| Subsequent coat | Approved epoxy zinc-rich primer; or recoat with other paints after full secondary blast cleaning. |
|---|
This product can only be applied to well blast-cleaned bare steel substrates to white metal, and cannot be overcoated with itself after drying. If this inorganic zinc silicate shop primer needs repair, use a suitable organic zinc-rich primer.
Before applying the next coat, the inorganic zinc silicate shop primer must be fully cured, otherwise adhesion will be affected.
| Packaging Specifications | Component A 25 kg, Component B 5 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 6 months 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 September 2023; 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.
