Jotamastic Smart Pack HB is a primer. Industrial protective coatings segment: recommended for offshore environments, such as refineries, power stations, bridges, buildings, mining equipment and general structural steel. Suitable for properly prepared carbon steel, galvanized steel, stainless steel, aluminium, concrete and many aged coated surfaces. Parameters on this page: volume solids 78 ± 2%, dry film thickness 100–200 µm, theoretical spreading rate 7.7–3.8 m²/L. Comparable products from the same brand: Jota-Etch Etching Primer, Jotamastic Smart Pack Primer, Jotaprime PP10 Temporary Protective Primer.
Parameter source: JOTUN original technical data sheet (TDS) "Jotamastic Smart Pack HB"; 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 | 78 ± 2% |
|---|---|
| Dry Film Thickness | 100–200 µm |
| Theoretical Spreading Rate | 7.7–3.8 m²/L |
| VOC | 184 g/L (US) |
| Density / Specific Gravity | 1.4 kg/L |
| Number of Components | Two-component |
| Flash Point | 36 °C |
| Thinner | Jotun Thinner No. 17 |
| Mixing Ratio | 1 part : 1 part (by volume) |
For more Q&A on selection, application, acceptance and defect diagnosis, seeFAQsection.
Jotamastic Smart Pack HB
This is a two-component, amine-cured, surface-tolerant epoxy coating. It is a high-build product featuring surface tolerance and high solids. Designed for brush and roller application. The 1:1 mixing ratio makes it easy to use and reduces waste. Specifically intended for areas where ideal surface preparation cannot be achieved or is not required. The product is particularly suitable for touch-up work during outfitting in new construction projects. Provides long-term anticorrosive protection in highly corrosive environments. Can be used as primer, intermediate coat, topcoat or single-coat system in atmospheric and immersion environments. Suitable for properly prepared carbon steel, galvanized steel, stainless steel, aluminium, concrete and many aged coated surfaces.
General:
Mainly for small-scale maintenance and repair.
Industrial protective coatings:
Recommended for offshore environments such as refineries, power stations, bridges, buildings, mining equipment and general structural steel.
Marine coatings:
Hull shell, exterior and interior areas, including ballast tanks.
Others
Grain certificate issued by the occupational health authority in Newcastle (UK). Certified to the low flame-spread requirements of the IMO 2010 FTP Code. Other certificates and approvals are available on request.
Jotamastic Smart Pack HB Alu. For different products in this series, refer to their respective technical data sheets.
Grey, red, light yellow, green, black
| Property | Test / Standard | Description |
| Volume Solids | ISO 3233 | 78± 2 % |
| Gloss (GU 60°) | ISO 2813 | Semi-gloss (35–70) |
| Flash Point | ISO 3679 Method 1 | 36 °C |
| Density | Theoretical Value | 1.4 kg/L |
| Region | Regulations | Test / Standard | VOC Value |
| US | CARB(SCM)2020 / SCAQMD rule 1113 | Calculation | 184 g/L |
| Hong Kong | Air Pollution Control (VOC) Regulation | Calculation | 184 g/L |
| EU | European Paint Directive 2004/42/CE | Calculation | 184 g/L |
| China | Mandatory national standard of China | GB 30981.2-2025 | 178 g/L |
| Coating hazards GB | 30981.2-S-Pb≤1000-NC |
The data listed are based on factory batch production and may vary slightly with colour.
| Gloss description | According to JOTUN's definition of functional coatings |
|---|
Typical recommended specification range
| Dry Film Thickness | 100–200 µm |
| Wet Film Thickness | 130–260 µm |
| Theoretical Spreading Rate | 7.7–3.8 m²/L |
The specified values are obtained from single-coat application by brush or roller.
Surface Preparation
| Substrate | Minimum | Recommended |
| Carbon Steel | St 2 (ISO 8501-1) | Sa 2 (ISO 8501-1) |
| Stainless steel | The surface should be blasted with a non-metallic abrasive, | “Blast clean using an approved non-metallic abrasive |
| hand- or machine-sanded using abrasive paper or fibre discs, | to produce a sharp angular surface profile.” |
to produce scratch marks on the surface.
| Aluminium | The surface should be blasted with a non-metallic abrasive, | “Blast clean using an approved non-metallic abrasive |
| hand- or machine-sanded using abrasive paper or fibre discs, | to produce a sharp angular surface profile.” |
| Galvanised steel | The surface should be clean, dry and have a suitable profile | Sweep blast with a non-metallic abrasive to produce a clean, |
| ° | a rough and uniform surface. | |
| Coated surface | A clean, dry and sound compatible primer. | |
| Concrete | On rough, clean, dry, laitance-free surfaces, sweep blast at low | Curing time of at least 4 weeks. Maximum moisture 5%. Seal with |
| Water jetting. | Closed-circuit blasting, diamond grinding and other suitable methods to treat the surrounding concrete surface to remove laitance. | |
This product may be applied by the following methods
| Spray: | Suitable for airless spray application |
| Brush: | one pass achieves the specified film thickness. For equipment recommendations, refer to the application guide. The product has a long levelling time. Roller and brush marks level out automatically 5–10 minutes after application. |
| Roller: |
| Jotamastic Smart Pack HB Comp A — High-Build Primer 1+1, Component A | 1 part |
| Jotamastic Smart Pack HB Comp B — High-Build Primer 1+1, Component B | 1 part |
| Thinner | Jotun Thinner No. 17 |
|---|
| Nozzle tip size (inch/1000): | 19-23 |
| Nozzle pressure (minimum): | 150 bar/2100 psi |
| Substrate Temperature | 5 °C | 10 °C | 23 °C | 40 °C |
| Touch Dry | 10 h | 7 h | 4 h | 2 h |
| Walk-on Dry | 25 h | 21 h | 11 h | 4 h |
| Minimum recoat interval | 25 h | 21 h | 11 h | 4 h |
| Dry/cured to service | 14 days | 10 days | 7 days | 3 days |
For the maximum recoat interval, refer to the Application Guide (AG) for this product.
Drying and curing times are determined based on temperature and relative humidity below 85%, with dry film thickness within the average range.
| Touch Dry | The state at which light finger pressure leaves no mark or stickiness. |
|---|---|
| Walk-on Dry | The minimum time after which the coating allows normal foot traffic without leaving permanent footprints, marks or other physical damage. |
Minimum recoat interval after drying: the recommended minimum interval before applying the next coat.
Dry/cured to service: the minimum time before the coating can be permanently exposed to a specific environment/medium.
| Paint temperature | 23 °C |
| Pot Life | 1 h |
Temperature
| Drying, atmospheric | Continuous 120 °C | Peak - |
| Immersed, sea water | 50 °C | 60 °C |
Withstands peak temperatures for a maximum of one hour.
At the above temperatures, protective performance is unaffected, but appearance may be affected.
Note: this coating can withstand different immersion temperatures, depending on the specific chemical and whether immersion is continuous or intermittent. Heat resistance is affected by the coating system as a whole. When used with other coatings, ensure that all coatings in the system have similar heat resistance.
Depending on the actual exposure conditions in service, this product may be used with various primers and topcoats. Some reference systems are listed below. For specific systems, contact JOTUN.
| Previous coat: | Epoxy shop primer, zinc-containing epoxy, epoxy, modified epoxy |
| Subsequent coat: | Polyurethane, polysiloxane, epoxy, acrylic |
| Volume | Container Size | |
| (L) | ||
| Jotamastic Smart Pack HB Comp A — High-Build Primer 1+1, Component A | 5 | |
| Jotamastic Smart Pack HB Comp B — High-Build Primer 1+1, Component B | 5 | |
The packaging sizes above are typical reference sizes for factory batch production. Due to regional regulatory differences, packaging sizes and capacities may vary by region.
Store in accordance with national regulations. Keep containers in a dry, cool, well-ventilated place away from heat and sources of ignition. Keep containers tightly closed. Handle with care.
| Jotamastic Smart Pack HB Comp A — High-Build Primer 1+1, Component A | 24 months |
| Jotamastic Smart Pack HB Comp B — High-Build Primer 1+1, Component B | 24 months |
In some markets, the stated shelf life may be shortened to comply with local legal requirements. The above is the minimum shelf life; thereafter, testing is required to confirm quality remains acceptable.
EPDs are available at www.epd-norge.no
For professional use only. Applicators and workers must be trained, experienced, capable and equipped to mix, stir and apply the coating correctly in accordance with JOTUN's technical documents. Applicators and workers must wear appropriate personal protective equipment when using this product. This guidance is provided based on current product knowledge. Any proposed modification to suit site conditions must be approved by the responsible JOTUN representative before use.
Read the safety warnings on the container packaging. Use in well-ventilated conditions. Avoid inhaling spray mist and avoid skin contact. In case of accidental splashes on skin, wash immediately with a suitable cleaner, soap and water. In case of eye contact, rinse thoroughly with water and seek medical attention immediately.
When used primarily as a primer or antifouling coating, products may show slight colour variation from batch to batch. Such products, and epoxy products used as topcoats, may chalk when exposed to sunlight.
Gloss and colour retention of topcoats depend on the colour type, the surrounding environment such as temperature and UV intensity, application quality and product type. Contact your local JOTUN office for further information.
The information in this datasheet is based entirely on knowledge gained in our laboratory and in practice. JOTUN products are regarded as semi-finished products, and their use is generally beyond our control. JOTUN therefore guarantees only the quality of the product itself. To comply with local regulations, the product may be adjusted, and we reserve the right to modify the datasheet without further notice.
Users should consult JOTUN for specific guidance on the suitability of the product for their requirements and applications.
In case of any discrepancy between language versions, the English (UK) version shall prevail.
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.
