UNY MARINE HS M PART A

What is UNY MARINE HS M PART A and why choose it?

UNY MARINE HS M PART A is the base component of a two-pack, high-solids polyurethane finish paint from Chugoku. Based on an acrylic polyol and non-yellowing poly-isocyanates (when combined with its hardener), it delivers a tough, glossy topcoat with excellent long-term durability. It is designed for demanding marine and industrial environments, offering strong UV resistance, very good gloss and colour retention, and high resistance to oils and many chemicals.

When mixed with the corresponding hardener, UNY MARINE HS M is suitable both as a marine topcoat for ship superstructures and decks, and as a protective finish for chemical and petrochemical plants, power plants, bridges, wind turbines and other steel structures.

Main features

• High-solids polyurethane finish – high build, two-component system for durable protection and reduced solvent emissions.
• Excellent weathering resistance – maintains gloss and colour for a long term, with resistance to UV radiation and yellowing.
• Mechanical robustness – tough film with very good impact and abrasion resistance.
• Chemical and oil resistance – suitable for areas exposed to petroleum products and various chemicals.
• Strong adhesion – excellent bonding to recommended epoxy and anti-corrosive undercoats.
• Re-coatable system – can be overcoated within recommended intervals at a wide temperature range.
• Wide application window – can be applied by airless spray, brush or roller from -5 °C up to 30 °C and 85% relative humidity (maximum).
• Versatile end uses – marine topsides and decks, as well as onshore steel infrastructures such as plants, bridges and wind turbines.

Technical characteristics

Product type and use

• Product name: UNY MARINE HS M PART A (Base component)
• Type: Polyurethane finish paint, high build (two-pack system with separate hardener)
• Recommended use – marine: Glossy finish coat on outside of superstructure, deck and fittings.
• Recommended use – industrial: Finish coat for chemical, petrochemical and power plants, bridges, wind turbines and other metallic structures.

Physical data (mixed product)

• Colour: White and colours as specified.
• Finish: Glossy.
• Flash point (mix): 16 °C.
• Volume solids: 66 ±2 % (ISO 3233:1998).
• VOC (theoretical): 314 g/l.
• Relative density: 1.2 – 1.5 at 20 °C (ASTM D1475-98).
• Physical state: Liquid.
• Odour: Fruit-like.

Mixing and thinning

• Number of components: Two (Base + Hardener).
• Mixing ratio (by volume): Base 88 : Hardener 12.
• Mixing ratio (by weight): Base 90 : Hardener 10.
• Thinner: URETHANE THINNER A.
• Thinning range (airless spray): 0 – 15% by volume.
• Mixing instructions: Add the hardener to the base while mixing and stir well before use.
• Note on hardener performance: The hardener reacts with moisture and its performance decreases after opening; handle with care and reseal properly.

Application data

• Application methods: Airless spray, brush, roller.
• Minimum application temperature: -5 °C.
• Maximum relative humidity during application: 85% R.H.
• Recommended thinner during application: URETHANE THINNER A.

Airless spray parameters

• Recommended tip numbers: Graco 515, 615, 715.
• Paint output pressure: 14.7 – 23.5 MPa.

Film thickness and theoretical spreading rate (mixed paint)

• Wet film thickness: 76 – 114 µm.
• Dry film thickness: 50 – 75 µm.
• Theoretical spreading rate: 13.2 – 8.8 m²/l.

Note: The actual spreading rate will vary depending on surface profile, geometry, application conditions and losses.

Drying and overcoating (DFT 70–75 µm)

Temperature	Surface dry	Hard dry	Minimum overcoating interval	Pot life
-5 °C	3.5 hours	60 hours	60 hours	24 hours
0 °C	2 hours	40 hours	40 hours	24 hours
5 °C	1 hour	24 hours	24 hours	24 hours
10 °C	40 minutes	12 hours	12 hours	20 hours
20 °C	30 minutes	8 hours	8 hours	16 hours
30 °C	20 minutes	6 hours	6 hours	8 hours

Max. overcoating interval: marked as “*” in the technical sheet; Consultar ficha técnica del fabricante.

Hard dry (definition): time until the product can be walked on without damaging the coating. Full mechanical strength is achieved later.

Surface preparation

• The surface must be clean and free from rust, dirt, oil, grease and any other contaminants.
• Use power washing, detergent cleaning or solvent wiping as appropriate.

Compatible primers and previous coats

• Preferred preceding coatings: BANNOH series, UMEGUARD series, EPICON series, CMP FLAMECHECK SS-2800.
• Preferred subsequent coating: Consultar ficha técnica del fabricante.

Applications and use cases

• Ships and marine structures
  • Glossy topcoat for external superstructures.
  • Decks and fittings exposed to marine atmosphere.
• Chemical and petrochemical plants
  • Final protective coat over suitable primers and intermediates on steel equipment and structures.
• Power generation facilities
  • Topcoat for exposed steel in power plants where resistance to weather and industrial atmospheres is required.
• Bridges and infrastructure
  • High-build polyurethane finish for bridge steelwork and similar exposed constructions.
• Wind turbines and tall structures
  • Gloss-retentive topcoat offering UV resistance on towers and nacelles when applied over appropriate primers.

FAQ

1. Is UNY MARINE HS M PART A a complete paint on its own?

   No. It is the base component of a two-pack system and must be mixed with the specified hardener before application.

2. What is the correct mixing ratio for base and hardener?

   The mixing ratio is 88 parts base to 12 parts hardener by volume (90:10 by weight).

3. Which thinner should be used?

   Use URETHANE THINNER A, typically 0–15% by volume for airless spray. The exact amount depends on application conditions.

4. What is the recommended dry film thickness per coat?

   The recommended dry film thickness is 50–75 µm per coat, corresponding to 76–114 µm wet film.

5. At what temperatures can I apply this product?

   Application is possible from -5 °C to 30 °C, provided the relative humidity does not exceed 85% and proper drying intervals are respected.

6. How long is the pot life after mixing?

   Pot life ranges from about 24 hours at -5 to 5 °C, to 8 hours at 30 °C. Always prepare only the amount that can be used within the pot life for the prevailing temperature.

7. Which primers are recommended under UNY MARINE HS M?

   Recommended preceding systems include BANNOH, UMEGUARD, EPICON and CMP FLAMECHECK SS-2800 series.

8. Can it be applied by brush or roller?

   Yes. While airless spray is typical for large areas, UNY MARINE HS M can also be applied by brush or roller, especially for stripe coating and touch-up.

9. Is the product re-coatable?

   Yes, UNY MARINE HS M is re-coatable within the specified overcoating intervals for each temperature range.

10. How should leftover paint and empty containers be disposed of?

    Waste paint and contaminated packaging should be disposed of in accordance with local regulations, using the European Waste Catalogue code 08 01 11* for waste paint and varnish containing organic solvents or other hazardous substances.

Section 14 – Transport information

• UN number: UN 1263.
• UN proper shipping name: PAINT.
• Transport hazard class: Class 3 (flammable liquid).
• Packing group: III.
• ADR / RID / ADN notes: Carriage in accordance with 2.2.3.1.5 for viscous substances up to 450 litre packs.
• IMDG Code notes: Transport according to 2.3.2.5 of the IMDG Code for viscous substances up to 30 litre packs.
• IATA: Class 3, UN 1263, Packing Group III; the “viscosity exemption” does not apply to air transport.
• Marine pollutant: No.
• EmS (IMDG): F-E, S-E.
• Transport within user’s premises: Always in closed, upright and secure containers; ensure personnel know procedures in case of accident or spillage.

Section 8 – Individual protection measures

General engineering controls

• Provide adequate ventilation using local exhaust and general extraction.
• If ventilation does not keep vapour and particulate levels below occupational exposure limits, suitable respiratory protection is required.
• During spraying in a booth, operators may need compressed air-fed respirators until solvent vapour and overspray levels are below limits.

Respiratory protection

• If workers may be exposed above the exposure limit, use a respirator to EN 140 fitted with a combined particulate and vapour filter to EN 14387 with an assigned protection factor of at least 10 (e.g. A2P3).
• For dry sanding, cutting or welding on the dry film, use appropriate respiratory protection if local exhaust ventilation is insufficient.

Hand protection

• Use chemical-resistant gloves tested according to EN 374 for repeated or prolonged contact.
• High protection (breakthrough time > 480 min / 240–480 min): Polyethylene (PE) gloves (min. 0.062 mm) and polyvinyl alcohol (PVA) gloves (0.2–0.3 mm).
• Medium protection (60–120 min / 120–240 min): Polyethylene (PE) gloves (0.062 mm) and PVA gloves (0.2–0.3 mm).
• For spray application: Nitrile gloves provide good protection.
• For intensive solvent contact (e.g. immersion): Viton gloves provide good protection.
• Use PE gloves as under-gloves in difficult situations (high exposure, unknown composition or properties of chemicals).
• Replace gloves regularly and immediately if damaged; follow glove manufacturer’s instructions for use, storage and maintenance.

Eye and face protection

• Use safety eyewear tested according to EN 16321 and EN 166, designed to protect against liquid splashes.

Skin and body protection

• Wear anti-static clothing made of natural fibre or high temperature-resistant synthetic fibre (EN ISO 13688).
• Barrier creams may help protect exposed skin areas but should not be applied after exposure has occurred.

Environmental protection

• Do not allow the product or cleaning residues to enter drains or watercourses.

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