SEAJET 033 SHOGUN

What is SEAJET 033 SHOGUN and why choose it?

SEAJET 033 SHOGUN from Seajet is a premium self polishing antifouling paint designed for high fouling areas. It provides highly effective protection against slime and weed for all types of pleasure craft up to 40 knots, when applied over suitably primed GRP, wood or steel. With up to two seasons from two coats and a maximum immersion time of 6 months after application, it offers long-lasting performance for boats that demand reliable underwater protection.

Main features

• Premium self polishing antifouling – maintains an active, fresh surface to resist slime and weed.
• High fouling protection – suitable for waters with intense fouling pressure.
• For pleasure craft up to 40 knots – ideal for sailing and motor yachts with moderate to high speed.
• Wide colour range – available in black, dark grey, mid blue, navy blue and red (also listed in some documents: light grey).
• Multi-substrate use – for correctly primed GRP/FRP, wood and steel hulls.
• Two-season system – two coats can provide protection for up to two seasons, depending on exposure and film build.
• Professional or DIY application – can be applied by brush or roller; spray application is restricted to professional users.
• Optimised film build – recommended 100 µm wet / 48 µm dry per coat for controlled polishing and coverage.
• Compatible Seajet primers – designed to work with SEAJET 015 Underwater Primer and SEAJET 117 Multipurpose Epoxy Primer.
• One-pack product – simple to use, no mixing ratio required.

Technical specifications

• Type: Premium self polishing, tin-free antifouling paint.
• Brand / Product: Seajet – SEAJET 033 SHOGUN (Product code 640VR).
• Recommended use: Antifouling for yachts and pleasure craft in high fouling areas, for hulls up to 40 knots.
• Substrates: Suitably primed GRP/FRP, wood, steel.
• Not suitable for: Aluminium surfaces – do not use SEAJET 033 SHOGUN on aluminium.
• Colours: Black, dark grey, mid blue, navy blue, red (some documents also list light grey).
• Finish: Self polishing antifouling coating.
• Volume solids: 48 ± 2 %.
• VOC (theoretical): 482 g/l.
• Flash point: 33–37 °C (solvent-borne, flammable liquid).
• Pack sizes: 0.75 L, 2.5 L, 5 L, 20 L.
• Mixing ratio: One-pack product – stir thoroughly to a uniform consistency before use.

Application data

• Thinner / cleaner: SEAJET THINNER A.
• Application methods: Brush or roller; spray by professional applicators only (airless, e.g. Graco 619 or 721 tips).
• Recommended wet film thickness per coat: 100 µm.
• Recommended dry film thickness per coat: 48 µm.
• Theoretical spreading rate: 10.0 m²/L at 48 µm DFT (roller application; actual coverage depends on method and conditions).
• Solvent addition (spray): 0–5 % by volume SEAJET THINNER A.

Application conditions

• Ambient temperature: Min. 5 °C – max. 35 °C.
• Product temperature: Min. 5 °C – max. 35 °C.
• Substrate temperature: Min. 7 °C – max. 35 °C.
• Maximum relative humidity: 85 % RH.

Drying and overcoating times (at 48–50 µm DFT)

• 5 °C: Surface dry 3 h; hard dry 12 h; minimum overcoat 12 h; no maximum; minimum time before launch 24 h.
• 10 °C: Surface dry 2 h; hard dry 8 h; minimum overcoat 8 h; no maximum; minimum time before launch 18 h.
• 20 °C: Surface dry 1 h; hard dry 5 h; minimum overcoat 5 h; no maximum; minimum time before launch 12 h.
• 30 °C: Surface dry 30 min; hard dry 4 h; minimum overcoat 4 h; no maximum; minimum time before launch 10 h.

Drying and overcoating times increase with higher film thickness. Always ensure the previous coat is fully dry before overcoating.

Immersion and durability

• Maximum time to immersion after application: 6 months.
• Indicative system life: Two coats may give up to two seasons of protection, depending on service conditions and correct film build.
• Colour notes: Slight colour change may occur after immersion. Colour variations between batches are possible; mix different batch numbers together before application.

Surface preparation

• Existing antifouling in good condition: High-pressure fresh water wash (approx. 200 bar) to remove fouling, contamination and the leached layer. Check Seajet compatibility table; if compatible, apply SEAJET 033 SHOGUN directly.
• Existing antifouling in poor condition: Remove antifouling. Only wet sand or use chemical removal methods. Never dry sand or burn old antifouling.
• Unknown or incompatible antifouling: After high-pressure washing, apply a barrier coat of SEAJET 015 Underwater Primer before SEAJET 033 SHOGUN.
• GRP / FRP / Steel, bare: Sand with P100 abrasive, remove all dust, then apply SEAJET 117 Multipurpose Epoxy Primer (or SEAJET 015 according to the older technical sheet). Apply SEAJET 033 SHOGUN within the specified primer overcoating interval.
• Wood, bare: Sand with P100 abrasive, remove dust, apply SEAJET 015 Underwater Primer, then SEAJET 033 SHOGUN.
• Aluminium: Not suitable – do not apply SEAJET 033 SHOGUN on aluminium.
• General: Ensure surfaces are dry and free from salt, grease, oil and other contaminants. Degrease where required.

Recommended system build

• Pre-treatment and primer as specified for each substrate.
• Apply two full coats of SEAJET 033 SHOGUN.
• Apply an additional coat on leading edges, waterline, rudders and stern gear for enhanced protection.

Storage, shelf life and disposal

• Storage: Store in a dry, cool, well-ventilated place away from direct sunlight, heat and ignition sources. Keep containers tightly closed and upright. Handle with care.
• Shelf life: Minimum 2 years at 20 °C (unopened, correctly stored containers).
• Disposal: Do not empty into drains. Dispose of paint and container at an authorised hazardous or special waste collection point, in accordance with local regulations.

Applications and use cases

• Yachts and sailing boats operating in coastal and high-fouling marinas where long-term antifouling performance is required.
• Motor cruisers and sport boats up to 40 knots that demand reliable fouling control without frequent lift-outs.
• Seasonal and year-round moored craft in marinas, estuaries and harbours, where slime and weed growth is intense.
• Repaint of existing antifouling systems when previous coatings are compatible or when a Seajet barrier primer is used.
• Wooden, GRP and steel hull refits requiring a complete underwater paint system with Seajet primers and antifouling.

FAQ – SEAJET 033 SHOGUN

On which hull materials can SEAJET 033 SHOGUN be used?

It is suitable for suitably primed GRP/FRP, wood and steel substrates. It must not be used on aluminium.

How many coats are recommended?

Two coats are recommended, with an extra coat on leading edges, the waterline, rudders and stern gear.

Can I apply it by myself?

Yes, application by brush or roller is suitable for competent DIY users. Spray application is for professional users only.

What thinner should I use?

Use only SEAJET THINNER A for thinning (0–5 % by volume for spray) and for cleaning tools.

How long before launching after painting?

Depending on temperature, minimum time to launch is approximately 24 h at 5 °C, 18 h at 10 °C, 12 h at 20 °C and 10 h at 30 °C. Do not exceed 6 months between final coat and immersion.

Is there a maximum overcoating interval?

There is no specified maximum overcoating interval, but the previous coat must be thoroughly dry and clean before overcoating.

Will the colour change in the water?

A slight colour change can occur after immersion. Minor batch-to-batch colour variations are also possible.

How should old antifouling be prepared?

High-pressure wash with fresh water (around 200 bar) to remove fouling and the leached layer. Only wet sand old antifouling; never dry sand or remove with heat. Remove coatings in poor condition.

What is the minimum storage temperature?

Containers should be stored between 0 °C and 40 °C in a dry, well ventilated place, away from direct sunlight and ignition sources.

Is SEAJET 033 SHOGUN compliant with IMO rules on organotin?

According to the safety data sheet, the product does not contain organotin compounds acting as biocides and complies with the IMO convention on harmful antifouling systems.

Section 14 – Transport information

• UN number: UN 1263.
• UN proper shipping name: PAINT.
• Transport hazard class: Class 3 (flammable liquid).
• Packing group: III.
• Regulations: ADR / RID / ADN, IMDG Code, IATA.
• Environmental hazards: Classified as dangerous for the aquatic environment; marine pollutant under IMDG.
• Marine pollutant substances: Cuprous(I) oxide, Zinc oxide.
• Hazard identification number (ADR): 30.
• EmS (IMDG): F-E, S-E.
• General transport advice: Always transport in securely closed containers, in an upright and secure position. Ensure personnel know what to do in case of accident or spillage.

Section 8 – Personal protective measures

The following information summarises the minimum individual protection measures indicated in the safety data sheet. Always follow local regulations and your risk assessment when handling SEAJET 033 SHOGUN.

Exposure control and ventilation

• Provide adequate general and local exhaust ventilation to keep solvent vapour and spray mists below occupational exposure limits.
• During spray application, if adequate ventilation cannot be guaranteed, operators should wear a respirator to EN 140 fitted with a combined particulate and vapour filter to EN 14387 (e.g. A2P3) or use air-fed respiratory protection.
• During dry sanding, flame cutting or welding on old coatings, wet sanding should be used wherever possible; if not, suitable respiratory protection is required.

Hand protection

• Use chemical-resistant gloves tested to EN 374.
• High protection, repeated or prolonged contact (> 480 min breakthrough): PVA gloves (0.2–0.3 mm) or butyl/Viton gloves (0.70 mm).
• High protection, 240–480 min: Polyethylene (PE) gloves (0.062 mm) or butyl/Viton gloves (0.70 mm).
• Medium protection, 120–240 min: PVA gloves (0.2–0.3 mm) or butyl gloves (0.3 mm).
• Medium protection, 60–120 min: PE gloves (0.062 mm), PVA gloves (0.2–0.3 mm) or butyl/Viton gloves (0.70 mm).
• Short-term / splash protection, 30–60 min: PVA gloves (0.2–0.3 mm), butyl/Viton gloves (0.70 mm) or nitrile gloves (0.31 mm).
• Short-term / splash protection, 10–30 min: PE gloves (0.062 mm), PVA gloves (0.2–0.3 mm), butyl/Viton gloves (0.70 mm), butyl gloves (0.50 mm) or nitrile gloves (0.31 mm).
• Not suitable (breakthrough < 10 min, non-exhaustive): Natural rubber gloves (0.75 mm), nitrile gloves (0.175 mm), neoprene gloves (0.75 mm), thin butyl gloves (0.3 mm).
• Replace gloves regularly and immediately if damaged. Ensure correct storage and use according to manufacturer’s instructions.

Eye and face protection

• Wear safety goggles or face shield tested to EN 166, suitable for protection against liquid splashes.

Skin and body protection

• Wear anti-static protective clothing made from natural fibres or high temperature-resistant synthetic fibres.
• Avoid skin contact; use barrier cream on exposed areas, but never after exposure has occurred.

Additional safety information

• Flammable liquid and vapour – keep away from heat, hot surfaces, sparks, open flames and other ignition sources. No smoking.
• May cause skin irritation, serious eye damage, respiratory irritation and allergic skin reactions.
• May cause damage to organs through prolonged or repeated exposure.
• Very toxic to aquatic life with long lasting effects – prevent release to the environment.
• Keep out of reach of children and avoid contact during pregnancy and while nursing.