DIMETCOTE 9 H inorganic zinc silicate primer 9 H is an inorganic zinc silicate coating used as a primer. The coating resists dry heat up to 399°C (750°F). Parameters on this page: volume solids 80 ± 4%, dry film thickness 2.0-5.0 mil (50-125 µm) depending on the coating system, theoretical spreading rate 16.0 m²/L. Comparable products from the same brand: DIMETCOTE 9 H inorganic zinc silicate primer 9 H, DIMETCOTE 9-75 inorganic zinc silicate primer 9-75, DIMETCOTE 3W waterborne inorganic zinc silicate coating 3W.
Parameter source: PPG original Technical Data Sheet (TDS) “DIMETCOTE 9 H Inorganic Zinc Silicate Primer 9 H”; 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 | 80 ± 4% |
|---|---|
| Dry Film Thickness | 2.0–5.0 mil (50–125 µm) depending on the coating system |
| Theoretical Spreading Rate | 16.0 m²/L |
| VOC | Maximum 2.7 lb/US gal (approx. 324 g/L) |
| Density / Specific Gravity | — |
| Number of Components | — |
| Thinner | Thinner 21-06 (AMERCOAT 65) (xylene), Thinner 21… |
| Introduction | Inorganic Zinc Silicate Primer |
|---|
| Number of Components | 3 components |
| Volume solids | 80 ± 4% . |
| VOC (as supplied) | Maximum 2.7 lb/US gal (approx. 324 g/L). |
| Heat resistance temperature (continuous service temperature) | Up to 750 °F (399 °C). |
| Recommended dry film thickness | 2.0–5.0 mil (50–125 µm) depending on the coating system. |
| Theoretical Spreading Rate | 642 ft²/US gal for 2.0 mil (16.0 m²/L for 50 µm). |
| Storage shelf life | Liquid: at least 9 months stored in a cool, dry environment |
Catalyst: at least 24 months stored in a cool, dry environment; Powder: at least 24 months stored in a dry and cool environment.
in a higher temperature environment, the maximum dry film thickness should not exceed 75 µm (3.0 mil).
Artificial humidification within the work area may be carried out by spraying water mist above the structure and/or watering below it. After the film reaches touch dry, if the environment is dry (relatively low humidity), a thin, fine water mist may be sprayed directly onto the coating.
epoxy coatings and PITTGUARD series epoxy coatings.
until uniform. Inorganic Zinc Silicate Primer 9 H is available in 0.68 gal or 3.4 gal kits.
until thoroughly mixed. Finally, pour the mixed paint from the original container through a 30-mesh filter screen into a separate empty container to remove undispersed agglomerates.
| Pot life | 8 h at 70 °F (21 °C). |
|---|---|
| Notes | See supplementary parameters — pot life after mixing. |
Dry film thickness may be measured after the coating is hard dry. If the film thickness is below the specified nominal value, touch-up application should be carried out within 24 h after the start of application of the original coat. The repair paint used for overcoating may be thinned with Thinner AMERCOAT 101 or AMERCOAT 930. Note that overspray contamination such as dry spray shall be removed.
abrasive blasting, repair application may instead use epoxy zinc-rich coating AMERCOAT 68HS or reinforced inorganic zinc primer DIMETCOTE 302 H.
During application and coating cure, the surface temperature shall be controlled between 40 °F (4 °C) and 90 °F (32 °C).
| Recommended thinner | Thinner 21-06 (AMERCOAT 65) (xylene), Thinner 21-25 (AMERCOAT 101) (only above 60 °F (16 °C)), AMERCOAT 930 (only above 80 °F (27 °C) or when dry spray is severe). |
|---|---|
| Thinner quantity | 0 - 8% . |
| Nozzle tip size | Approximately 0.070 inch (1.8 mm). |
| Recommended thinner | Thinner 21-06 (AMERCOAT 65) (xylene), Thinner 21-25 (AMERCOAT 101) (only above 60 °F (16 °C)), AMERCOAT 930 (only above 80 °F (27 °C) or when dry spray is severe). |
|---|---|
| Nozzle tip size | 0.019 – 0.023 inch (approximately 0.48 – 0.58 mm) |
| Recommended thinner | Thinner 21-06 (AMERCOAT 65) (xylene), Thinner 21-25 (AMERCOAT 101) (only at temperatures > 60 °F (16 °C)), AMERCOAT 930 (only at temperatures > 80 °F (27 °C) or when dry spray is severe). |
|---|---|
| Cleaning solvent | AMERCOAT 12 cleaner or AMERCOAT 65 thinner (xylene) |
Overcoating interval schedule for a coating of 75 µm (3.0 mil) dry film thickness at 50% relative humidity
| Subsequent coat for recoating | Recoat interval | 40°F (4°C) | 50°F (10°C) | 70°F (21°C) | 90°F (32°C) |
| Self-recoat | Minimum recoat interval | 48 h | 36 h | 24 h | 16 h |
| Maximum recoat interval | Unlimited | ||||
Prior to topcoat application, the coating shall have reached a degree of cure of at least Grade 3.
rub method. Prior to overcoating, dry spray and similar shall also be removed by wire mesh or similar, followed by thinning with Thinner 21-25 (AMERCOAT 101) at 25–30% by volume; repair application may then begin to build the dry film thickness up to the specified value.
surface abrading to a profile shall be carried out; care shall be taken to avoid improper operation resulting in surface polishing. A suitable method is sweep blasting with a light abrasive, followed by thorough surface cleaning. Finally, as described above, thin the paint with Thinner 21-25 (AMERCOAT 101) and carry out repair overcoating.
Cure schedule for a coating of 75 µm (3.0 mil) dry film thickness at 50% relative humidity
| Substrate Temperature | Touch dry (surface dry) | Hard dry |
| 40 °F (4 °C) | 40 min | 70 min |
| 50 °F (10 °C) | 30 min | 40 min |
| 70 °F (21 °C) | 15 min | 20 min |
| 90 °F (32 °C) | 5 min | 10 min |
| Mixed paint temperature | Pot life |
| 50 °F (10 °C) | 12 h |
| 70 °F (21 °C) | 8 h |
| 90 °F (32 °C) | 4 h |
| Notes | Continuous stirring shall be maintained throughout the entire application process to prevent settling of the zinc dust. Protect the paint in the container from moisture contamination. |
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If the buyer fails to notify PPG of the defect as required above, this will prejudice the buyer's right to obtain compensation under this warranty from PPG!
In all cases, PPG shall not be liable for any indirect, special, incidental or consequential loss of any kind arising from or in connection with the use of this product (whether based on negligence, strict liability or tort).
The information in this product data sheet is based on laboratory tests we believe to be reliable, and is provided for guidance only. PPG may revise this information at any time as experience accumulates and product development progresses.
All recommendations and advice concerning the use of this product, whether in technical documents, in response to an enquiry or otherwise, are given to the best of our knowledge and are believed to be reliable. Our products and related information are provided for industrial users possessing the necessary knowledge and practical skills, and it is the end user's responsibility to determine whether the product is suitable for the specific use. The buyer, having performed such evaluation, proceeds entirely at its own risk.
The quality and condition of the substrate on site, and the many other factors affecting product use and application, are beyond PPG's control. Therefore, PPG accepts no liability for any loss, injury or damage arising from the use of the information in this product data sheet (unless otherwise provided in a written agreement). Different application environments, changes to the application process or extrapolation of the reference data may result in failure to achieve the expected coating quality.
This product data sheet supersedes all previous versions. The buyer is responsible for confirming that the data sheet in hand is the latest version before using the product. The latest version is published on the official website of PPG Protective & Marine Coatings:
www.ppgpmc.com. In case of discrepancy between the Chinese version and the original English version of the product data sheet, the English original shall prevail.
| Product number | Introduction |
| DI9H-A | Liquid component |
| DI9H-B | Catalyst |
| DI9-P | Zinc dust pigment |
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