What SEAJET TIE COAT is and why choose it
SEAJET TIE COAT is a one-pack tie coat specifically developed as part of the SEAJET BIOCLEAN ECO system. Applied between the primer and SEAJET BIOCLEAN ECO, it maximises adhesion and overall coating performance. The product can be used over existing antifouling, including Teflon-based antifoulings, and is suitable for GRP (fibreglass), wood, steel and aluminium hulls. With quick drying properties and easy application by airless spray, brush or mohair roller, SEAJET TIE COAT offers a reliable solution for preparing underwater surfaces before applying SEAJET BIOCLEAN ECO.
Main features
- Designed as a preceding coat for the SEAJET BIOCLEAN ECO system.
- Ensures maximum adhesion between primer or existing antifouling and SEAJET BIOCLEAN ECO.
- Can be applied over existing antifouling, including Teflon-based products.
- Quick drying with short overcoating intervals, depending on temperature.
- Suitable for GRP, wood, steel and aluminium substrates.
- Easy application by airless spray, brush or mohair roller.
- Available in four colours: white, black, navy blue and red.
- One-pack product for straightforward mixing and use.
Technical specifications
- Brand / Product name: Seajet – SEAJET TIE COAT
- Product type: One-pack tie coat for underwater areas within the SEAJET BIOCLEAN ECO system
- Colour options: White, black, navy blue, red
- Volume solids: 30 ±2 %
- VOC (theoretical): 614 g/l
- Flash point: 26°C
- Pack sizes: 0.75 L, 2.5 L
- Recommended film thickness per coat: 100 µm wet / 30 µm dry
- Theoretical spreading rate: 10.0 m²/l (based on roller application)
- Application methods: Airless spray, brush, mohair roller
- Thinner: SEAJET THINNER A
- Airless spray nozzle tips: Graco 721, 723
- Spray pressure (airless): 15.0 – 18.0 MPa
- Thinning (spray): 15 – 25 % by volume
- Ambient application 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 during application: 85% RH
- Suitable substrates: GRP (fibreglass), wood, steel, aluminium
- Recommended preceding coatings: SEAJET 015 UNDERWATER PRIMER, SEAJET 117 MULTIPURPOSE EPOXY PRIMER
- Subsequent coating: SEAJET BIOCLEAN ECO
- Relative density: 1.06 – 1.16 at 20°C
- Viscosity: 349 mm²/s at 40°C (thixotropic, non-Newtonian)
- Shelf life: Minimum 2 years at 20°C (unopened, correctly stored)
Drying and overcoating times (at 30 µm DFT)
- 5°C: Surface dry 40 min; hard dry 4 h; minimum overcoating interval 5 h; no maximum overcoating interval indicated.
- 10°C: Surface dry 30 min; hard dry 3 h; minimum overcoating interval 4 h; no maximum overcoating interval indicated.
- 20°C: Surface dry 20 min; hard dry 2 h; minimum overcoating interval 3 h; no maximum overcoating interval indicated.
- 30°C: Surface dry 15 min; hard dry 1.5 h; minimum overcoating interval 2 h; no maximum overcoating interval indicated.
- Minimum overcoating interval before applying SEAJET BIOCLEAN ECO: 12 h.
- Maximum time before immersion (with SEAJET BIOCLEAN ECO): up to 7 days at 5–20°C, up to 5 days at 30°C.
- Drying times and overcoating intervals increase with higher film thickness.
Applications and use cases
SEAJET TIE COAT is intended for underwater areas as part of the SEAJET BIOCLEAN ECO system, providing an adhesion-promoting layer over primers or existing antifouling. Typical applications include:
- Re-coating yachts and boats already protected with antifouling, including Teflon-based systems.
- New builds or major refits on GRP, wood, steel or aluminium hulls where a complete SEAJET primer and antifouling system is required.
- Situations where quick drying and flexible application windows are important during yard work.
Surface preparation guidelines
- Over existing clean antifouling: Roughen with P100 abrasive paper (wet sanding), wash with fresh water and allow to dry. Apply 2 coats of SEAJET TIE COAT before SEAJET BIOCLEAN ECO.
- Bare fibreglass (GRP): Degrease and abrade with P100 abrasive paper, then wipe with THINNER E to remove contamination. Apply 2 coats of SEAJET 117 Silver, then 2 coats of SEAJET TIE COAT, followed by 2 coats of SEAJET BIOCLEAN ECO.
- Wood: Degrease if needed and abrade with P100 abrasive paper, then clean thoroughly. Apply 2 coats of SEAJET 015, then 2 coats of SEAJET TIE COAT, followed by 2 coats of SEAJET BIOCLEAN ECO.
- Aluminium / Steel: Degrease if required and abrade with P100 abrasive paper, then clean to remove all contamination. Apply 3 coats of SEAJET 117 Silver, then 2 coats of SEAJET TIE COAT, followed by 2 coats of SEAJET BIOCLEAN ECO.
- Apply only on dry, damp-free surfaces and ensure adequate ventilation during application and drying.
FAQ
1. What is SEAJET TIE COAT used for?
It is used as an adhesion-promoting tie coat between primers or existing antifouling and SEAJET BIOCLEAN ECO on GRP, wood, steel and aluminium hulls.
2. Can I apply SEAJET TIE COAT over old antifouling?
Yes. It can be applied over clean, sound existing antifouling, including Teflon-based antifouling, after proper sanding and washing.
3. Which antifouling should follow SEAJET TIE COAT?
SEAJET TIE COAT is designed to be followed by SEAJET BIOCLEAN ECO, typically in 2 coats.
4. How many coats of SEAJET TIE COAT are recommended?
The technical data specifies 2 coats of SEAJET TIE COAT in the described systems before applying SEAJET BIOCLEAN ECO.
5. How long must I wait before overcoating?
Depending on temperature, minimum overcoating intervals range from 2 to 5 hours at 30 µm DFT. Before applying SEAJET BIOCLEAN ECO, a minimum of 12 hours should be allowed.
6. What is the theoretical coverage?
The theoretical spreading rate is 10.0 m² per litre at 30 µm dry film thickness, based on roller application.
7. Which thinner should I use?
Use SEAJET THINNER A. For airless spray, thinning between 15 and 25 % by volume is indicated.
8. On which substrates can I use SEAJET TIE COAT?
It is suitable for GRP (fibreglass), wood, steel and aluminium, when used within the recommended primer systems.
9. How should I mix the product before use?
Stir thoroughly until the product is of uniform consistency. SEAJET TIE COAT is a one-pack product and does not require additional components.
10. How long can the product be stored?
When stored correctly in unopened containers at 20°C, the minimum shelf life is 2 years.
Section 14 – Transport information
- UN number: UN 1263
- UN proper shipping name: PAINT
- Transport hazard class: Class 3 (flammable liquid)
- Packing group: II
- Marine pollutant: No
- Transport modalities mentioned: ADR / RID / ADN, IMDG Code, IATA
- Transport within user’s premises: The product should stay in a securely closed container, transported upright. Ensure that personnel involved in transport know what to do in case of an accident or spill.
Section 8 – Individual protection measures
SEAJET TIE COAT is classified as a very flammable liquid and vapour and can cause skin and eye irritation, respiratory irritation and organ damage after prolonged or repeated exposure. The following personal protection measures are indicated in the safety documentation:
General measures
- Observe all precautionary notices on the container label.
- Provide adequate ventilation; use local exhaust and general extraction to keep vapour and spray mist below exposure limits.
- Avoid breathing vapours, aerosols or spray mist and avoid skin and eye contact.
Respiratory protection
- When ventilation is insufficient to keep concentrations below limits, use a respirator complying with EN 140 fitted with a combined filter for organic vapours and particulates (e.g. A2P3 type).
- During spraying in confined or poorly ventilated spaces, air-supplied respiratory equipment is recommended until vapour and particle concentrations are below exposure limits.
Hand protection
- Use chemical-resistant gloves tested to EN 374.
- Nitrile gloves provide good protection during spray application.
- Viton/butyl gloves provide good protection for intensive solvent contact, such as immersion.
- Inspect and replace gloves regularly at the first sign of damage. Follow glove manufacturer instructions for use and replacement.
Eye and face protection
- Wear safety goggles or face shields designed to protect against liquid splashes (EN 166 type).
Skin and body protection
- Wear antistatic work clothing made from natural fibres or heat-resistant synthetic fibres.
- Avoid contaminated clothing; remove and wash soiled garments before reuse.
Hygiene and safety advice
- Do not eat, drink or smoke in the application area.
- If the product contacts the skin, wash thoroughly with lukewarm water and soap or a suitable cleaner.
- If it enters the eyes, rinse carefully with clean water for several minutes and seek medical advice.
- Because the product contains flammable materials, keep away from heat, sparks and open flames. No smoking in the area.
*Contenido generado por IA
