Interdur 8809 Epoxy Zinc-rich Primer belongs to zinc-rich primers, epoxy system. Highly suitable for cathodic protection of steel structures, containers, equipment, piping and other steel surfaces exposed to mild to severe industrial environments. Interdur 8809 is a two-component epoxy zinc-rich primer conforming to the composition and performance requirements of HG/T 3668. Minimum Maximum 1 h 5 days Do not use alkyd or alkyd polyurethane topcoats. Interdur 8809 is not suitable for solvent or chemical immersion environments. Parameters on this page: dry film thickness 50–100 µm (2–4 mils), theoretical spreading rate 9.33 m²/L, number of components two-component.
Parameter source: AKZONOBEL original technical data sheet (TDS) "Interdur 8809 Epoxy Zinc-rich Primer"; 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 | 70% |
|---|---|
| Dry Film Thickness | 50–100 µm (2–4 mils) |
| Theoretical Spreading Rate | 9.33 m²/L |
| VOC | 2.44 lb/gal (293 g/L) US EPA Method 24 30… |
| Density / Specific Gravity | 2.94 kg/L (24.5 lb/gal) |
| Number of Components | Two-component |
| Thinner | International GTA220 |
| Mixing Ratio | 9 parts : 1 part (by volume) |
| Gloss | Matt |
For more Q&A on selection, application, acceptance and defect diagnosis, seeFAQsection.
Interdur 8809 is a two-component epoxy zinc-rich primer conforming to the composition and performance requirements of HG/T 3668.
Highly suitable for cathodic protection of steel structures, vessels, equipment and pipelines whose surfaces are exposed to mild to severe industrial environments. Because of simple application, wide compatibility and fast drying and overcoating, it is also highly suitable for touch-up and maintenance work.
INTERDUR Colour red, grey 8809
| Gloss | Matt |
|---|---|
| Volume Solids | 70% |
| Typical thickness | DFT 50–100 µm (2–4 mil) corresponds to WFT 71–143 µm (2.8–5.7 mil) |
| Theoretical Spreading Rate | 9.33 m²/L at 75 µm dry film thickness and the stated volume solids; 374 ft²/US gal at 3 mil dry film thickness and the stated volume solids |
| Practical Spreading Rate | Allowing for a suitable loss factor |
| Application Methods | Air spray, suitable for airless spray, brush and roller. Drying time: recommended topcoat overcoating interval |
| Temperature | Surface Dry | Hard Dry | Minimum | Maximum |
| 5°C (41°F) | 6 h | 14 h | 12 h | 30 days¹ |
| 15°C (59°F) | 3 h | 12 h | 10 h | 30 days¹ |
| 25°C (77°F) | 1.5 h | 7 h | 30 days¹ | |
| 40°C (104°F) | 40 min | 3 h | 30 days¹ | |
¹ Overcoat with epoxy intermediate/topcoat or itself. When Interdur 8809 is overcoated with recommended topcoats, the recoating interval will be shortened. For further details, see the "Product Characteristics" section.
| Flash point (typical) | Component A 28 °C (82 °F); Component B 27 °C (81 °F); after mixing 28 °C (82 °F) |
|---|---|
| Product weight | 2.94 kg/L (24.5 lb/gal) |
| Volatile Organic Compounds | 2.44 lb/gal (293 g/L) US EPA Method 24 300 g/L China national standard GB 23985 For further details, see the "Product Characteristics" section |
All surfaces to be coated on steel substrates shall be clean and free from contamination. Prior to application, all surfaces shall be assessed and prepared in accordance with ISO 8504:2000.
Where required, remove weld spatter and grind welds and sharp edges smooth.
For immersion service, surface preparation requirement is abrasive blasting to near-white metal Sa2.5 (GB8923-1 : 1988). For non-immersion service, surface preparation requirement is abrasive blasting to commercial grade Sa2 (GB 8923-1 : 1988). The blasted surface shall have an angular sharp profile rather than a "flat profile" (shot blasting), with a surface roughness of 40–60 µm. Surfaces to be coated must be free from dust.
Previously painted surfaces: Interdur 8809 shall not be applied directly over existing coating surfaces. All coatings must be removed by abrasive blasting to a minimum of Sa2 (GB8923-1:1998).
| Mixing | The material is supplied in two containers. Always mix in whole-container units. The zinc metal is pre-mixed; store Component A. Slowly add Component B while mixing slowly and thoroughly until completely uniform. At 60 °F (16 °C), allow to stand for 15 min before use; for every 10 °F (6 °C) decrease in temperature, increase the standing time by 10 min. |
|---|---|
| Mixing ratio | 9 parts : 1 part (by volume) |
| Pot life | 5°C (41°F) | 15°C (59°F) | 25°C (77°F) | 40°C (104°F) |
| 7 h | 6 h | 5 h |
| Suitable for airless spray | Recommended nozzle diameter 0.54–0.63 mm (21–25 mils); total paint pressure at the nozzle not less than 207 kg/cm² (2944 psi) |
|---|---|
| Air Spray | Applicable: use a professional-grade conventional spray gun with a nozzle of 1.78 mm (0.070 '') or larger to form the spray. |
(with pressure pot)
| Brush | Applicable |
|---|---|
| Roller application | Applicable |
| Thinner | International GTA220. |
| Cleaner | International GTA220. |
| Interruption of work | Do not leave paint in hoses, spray guns or spray equipment. Flush all equipment thoroughly with International GTA220. |
Once mixed, paint should not be resealed. If work is interrupted for too long, mix a fresh batch for application.
| Cleaning | All equipment shall be cleaned with International GTA 220 immediately after use. Periodically flushing spray equipment during the daily work is good practice. The frequency of cleaning depends on the quantity sprayed, temperature, spraying time and interruptions. |
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All surplus paint and empty containers must be disposed of in accordance with the relevant local laws/regulations.
Advantages: - Excellent corrosion protection - Provides cathodic protection - Easy mixing - Pre-mixed zinc dust formulation - Short drying time, short recoating interval - Suitable for various simple application methods (e.g. brush, roller or spray) - Compatible with most high-performance topcoats - Low VOC content When overcoating Interdur 8809 with recommended topcoats, the following recoating intervals shall be observed;;
Minimum; maximum
| 5°C (41°F) | 4.5 h, 5 days |
|---|---|
| 15°C (59°F) | 2 h; 5 days |
| 25°C (77°F) | 1 h 5 days Do not use alkyd or alkyd polyurethane topcoats. Interdur 8809 is not suitable for solvent or chemical immersion environments. |
Note: VOC values are typical and for guidance only. They may vary with colour and general production tolerances.
The following topcoats are approved for use with Interdur 8809: Interdur 8814 Interdur 8840 Interdur 8860
| For further information on the industry standards, terms and abbreviations used in this datasheet, see www.international-pc.com | In the following documents on the website: • Definitions and abbreviations • Surface preparation • Coating application • Theoretical and practical spreading rate. These sections are also available as separate publications on request. |
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This product must be applied at the production site by professional applicators in accordance with the recommendations in this manual, the Material Safety Data Sheet and the instructions on the container label. Do not use this product without first reviewing the Material Safety Data Sheet (MSDS) that International Paint provides for its customers.
All work related to the application and use of this product must be carried out in accordance with the relevant national health, safety and environmental standards and regulations.
If welding or flame cutting is required on metal coated with this product, dust and fumes will be generated; use appropriate personal protective equipment and adequate local ventilation.
If in doubt about the suitability of this product, consult International Paint.
| Packaging Specifications | Component A | Component B | ||
| Volume | Packaging | Volume | Packaging | |
| 20 L | 18 L | 20 L | 2 L | 5 L |
For other available packaging sizes, contact International Paint.
| Packaging Specifications | Component A | Component B |
| 20 L | 58.9 kg | 2.1 kg |
| Shelf life | At 25 °C (77 °F), 12 months, after which the product shall be checked before use. Store in a dry, cool place away from heat sources and ignition sources. |
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©2016/9/30 AkzoNobel. All rights reserved.
All registered trademarks mentioned in this publication are licensed to or owned by AkzoNobel.
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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.
Packaging specifications and batch lead times are subject to actual availability. PleaseContact Uscontact us for project-based calculation.
