Interlac 678 Alkyd Varnish is an alkyd coating for use as a topcoat. Intended for newbuilding, maintenance and repair or in-service maintenance. A one-component alkyd varnish with high gloss and good durability. Parameters on this page: volume solids 52% ± 2%, dry film thickness 25 µm, theoretical spreading rate 20.8 m²/L. Comparable products of the same brand: Interstores Alkyd Topcoat, Intergard 723 Epoxy Semi-gloss Topcoat, Interlac 497 Alkyd Intermediate Coat.
Parameter source: International manufacturer's Technical Data Sheet (TDS) "Interlac 678 Alkyd Varnish"; values such as spreading rate are converted from TDS parameters and are for product 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 | 52% ± 2% |
|---|---|
| Dry Film Thickness | 25 µm |
| Theoretical Spreading Rate | 20.8 m²/L |
| VOC | 373 g/L (as supplied) (EPA Method 24) 400 g/kg (… |
| Density / Specific Gravity | — |
| Number of Components | One-component |
| Mixing Ratio | N/A |
| Colour / Appearance | HVA022 |
| Gloss | High gloss |
For more Q&A on selection, application, acceptance and defect diagnosis, seeFAQsection.
A one-component alkyd varnish with high gloss and good durability.
For interior and exterior woodwork.
For newbuilding, maintenance and repair, or in-service maintenance.
| Colour | HVA022 |
|---|---|
| Topcoat/gloss | High gloss |
| Component B (curing agent) | N/A |
| Volume Solids | 52% ±2% (ISO 3233:1998) |
| Mixing ratio | N/A |
| Standard film thickness | 25 µm dry film thickness (48 µm wet film thickness) |
| Theoretical Spreading Rate | Theoretical spreading rate 20.8 m²/L at 25 µm dry film thickness, allowing for appropriate loss factors |
| Application Methods | Airless spray, brush, conventional spray, roller |
| Flash Point | One-component 33°C |
| Drying data | -5°C | 5°C | 25°C | 35°C |
| Touch dry [ISO 9117/3:2010] | 16 h | 6 h | 4 h | |
| Hard dry [ISO 9117-1:2009] | 60 h | 36 h | 24 h | |
| Recoat data — see the “Limitations” section | Substrate Temperature |
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| When recoating the following products | -5 °C minimum | -5 °C maximum | 5 °C minimum | 5 °C maximum | 25 °C minimum | 25 °C maximum | 35 °C minimum | 35 °C maximum |
| Interlac 678 | 48 h | Unlimited | 24 h | Unlimited | 24 h | Unlimited | 24 h | Unlimited |
| Volatile Organic Compounds | 373 g/L (as supplied) (EPA Method 24) 400 g/kg (as supplied liquid paint). EU Solvent Emissions Directive (Council Directive 1999/13/EC) 418 g/L. China national standard GB23985. VOC values are typical values provided for reference only. They may vary with factors such as colour and normal manufacturing tolerances. |
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Coating hazards GB 30981.2-S-Pb≤1000-NC; complies with GB 30981.2-2025
For the paint system best suited to the surface to be protected, consult your local International Paint representative.
Applied in accordance with the standard Worldwide Marine Specifications.
All surfaces to be coated must be clean, dry and free of contaminants.
Wash with high-pressure or ordinary fresh water as appropriate, and remove all oil, grease, soluble contaminants and other foreign matter in accordance with the SSPC-SP1 solvent cleaning standard.
Newbuilding/overhaul: ensure the wood is clean and dry before application.
For new wood, thinning the first coat 50% with GTA004 is recommended to allow the coating to penetrate the wood fully.
Maintenance/in-service maintenance: ensure the wood is clean and dry before application.
Interlac 678 may be applied directly over old Interlac 678 coatings that have been thoroughly washed with fresh water and degreased, provided the coating to be recoated is intact and firmly adherent. Loose or flaking coating shall be removed back to a firm edge and the area repaired with Interlac 678 or a suitable primer before application of the full coat.
When priming bare wood or applying the first coat to new wood, GTA004 may be added at up to 50% by volume.
For specific advice, consult your local International Paint representative.
This coating is a single-component product; stir thoroughly with a power mixer before application.
International GTA004. Normally no thinning is required. Under extreme conditions, consult your local representative for application advice. Do not thin beyond the limits of local environmental regulations.
Suitable.
Nozzle size 0.33–0.38 mm (13–15 thou); total fluid pressure at the nozzle not less than 176 kg/cm² (2500 psi)
Use suitable dedicated equipment. Thinning may be required.
Recommended.
Flush all equipment thoroughly with International thinner. All unused paint must be stored in tightly closed containers. Partly filled containers may show skinning and/or increased viscosity after storage. Strain the paint before use.
If welding or flame cutting is performed on metal coated with this product, dust and fumes will be released; use suitable personal protective equipment and local exhaust ventilation. In North America, follow the instructions in ANSI/ASC Z49.1 “Safety in Welding and Cutting”.
All work related to the application and use of this product must comply with national health, safety and environmental protection standards and regulations.
Before using this product, obtain, read and follow the health and safety information in the Material Safety Data Sheet for the product. Read and observe all precautions in the Material Safety Data Sheet and on the container label. If these warnings and requirements are not fully understood, or cannot be strictly observed, do not use the product. During application and drying of the product, provide adequate ventilation and protective measures to keep solvent vapour concentrations within safe limits, so as to prevent poisoning or oxygen deficiency. Take protective measures to avoid skin and eye contact with the product (e.g. gloves, goggles, face shield, barrier cream). Specific safety measures depend on the application method and working environment.
Emergency contact: USA/Canada — medical 1-800-854-6813; Europe — tel. (44) 191 4696111, hospital and doctor (44) 207 6359191; China — tel. (86) 532 83889090; other regions — contact the regional office.
Recoat data are for guidance only and depend on local climatic and environmental conditions. For specific advice, consult your local International Paint representative.
Apply in good weather. The temperature of the surface to be coated must be at least 3 °C above the dew point. Unless otherwise specifically instructed, raise the paint temperature to between 21 and 27 °C before mixing and application to achieve optimum application performance. Unmixed paint (in sealed containers) must be stored protectively as specified in the Storage section of this product data sheet. The technical and application data given here are intended as general guidance for establishing an application procedure. Test results are obtained in a controlled laboratory environment, and International Paint does not claim that the published test results, or any other test results, accurately represent results obtained in all site environments. Because application, environmental and design parameters vary widely, care must be exercised in coating selection, performance verification and use.
In the Recoat Data section, unlimited = 'ext'. See the Marine Painting Guide — Definitions and Abbreviations available on our website.
Packaging size volume; packaging
| 5 L | 5 L, 5 L. For other pack sizes, contact International Paint. |
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| Packaging Specifications | Packaging weight |
|---|---|
| 5 L | 5.14 kg |
| Shelf life | At 25 °C, minimum 24 months. Thereafter, re-inspection is required. Store in a dry, sheltered place away from heat and sources of ignition |
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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.
Factory product codes for Interlac 678 Alkyd Varnish are as follows.Item No.is the most accurate form when ordering;Colour/colour codecorresponds to the actual colour (RAL, GSB are colour chart codes);Packaging SpecificationsFactory complete-set specification format. Colors not listed may be ordered against the colour card.
| Item No. | Colour / colour code | Packaging Specifications |
|---|---|---|
| HVA022 | — | 5 L |
This model has a total of1item numbers, all listed on this page; colours outside the table (including special colours and bulk packaging) can be confirmed by phone, delivery dates are advised according to the factory's current production schedule and stock. In the packaging specification, the "+" indicates the complete-set notation for two-component products (base + curing agent), subject to the factory specification; a "—" in the colour column denotes an auxiliary product, or that the item has no colour code in the factory system.
