What is MICRON 99 and why choose it
MICRON 99 by International Náutica is a premium, multi-season Self Polishing Co-Polymer (SPC) antifouling designed for professional applications. It provides effective protection against fouling organisms, slime, aquatic plants and animals on boat hulls and underwater metal or wooden structures. With a low VOC content to help reduce solvent emissions and high covering power, MICRON 99 helps shipyards and professional applicators lower paint and labour costs while maintaining high-performance antifouling protection.
Main features
- High performance SPC antifouling for professional use.
- Effective against fouling organisms, slime, aquatic plants and animals.
- Multi-season, multi-period protection depending on film thickness and system used.
- Low VOC content to help meet SED legislation and reduce solvent emissions.
- High coverage to optimise paint consumption and labour time.
- Suitable for GRP, wood, steel/iron and lead substrates.
- Available colours: YBC101 Blue, YBC103 Navy, YBC104 Red, YBC106 Black.
- Low sheen finish.
- Application methods: airless spray (professional use only), brush and roller.
- Designed to be applied over suitable International primers and most existing antifoulings in good condition (except VC17m/PTFE antifoulings).
Technical specifications
- Brand: International Náutica
- Product name: MICRON 99
- Type: Self Polishing Co-Polymer (SPC) antifouling
- Finish: Low sheen
- Density: 2.1 average
- Volume solids: 65% average
- Storage time (typical): 2 years
- VOC: 300 g/L average
- EU solvent emission (Directive 1999/13/EC): 141 g/kg
- Packaging sizes: 5 L and 20 L (not all sizes available in all countries).
Drying and immersion times
- Dry to touch:
- 5°C: 60 minutes
- 15°C: 45 minutes
- 23°C: 30 minutes
- 35°C: 20 minutes
- Minimum time before immersion:
- 5°C: 24 hours
- 15°C: 18 hours
- 23°C: 12 hours
- 35°C: 12 hours
- Maximum immersion time: 12 months between 5–35°C.
MICRON 99 is a high performance SPC antifouling and, with over-application, may be slow to through-dry. Ensure the product is hard dry before lifting the vessel. Sling marks may occur but will not affect coating performance.
Overcoating interval (same product)
Substrate temperature / Minimum overcoating time:
- 5°C: 8 hours (no maximum limit stated)
- 15°C: 6 hours (no maximum limit stated)
- 23°C: 4 hours (no maximum limit stated)
- 35°C: 3 hours (no maximum limit stated)
Recommended film thickness and coverage
- Brush/Roller:
- Recommended DFT per coat: 65 μm dry
- Recommended WFT per coat: 100 μm wet
- Theoretical coverage: 10 m²/L
- Practical coverage: 9 m²/L
- Airless spray (professional use only):
- For 24-month systems: 100 μm dry / 154 μm wet per coat
- For 12-month systems: 130 μm dry / 200 μm wet per coat
- Theoretical coverage 24 months: 6.7 m²/L
- Practical coverage 24 months: 4 m²/L
- Theoretical coverage 12 months: 5 m²/L
- Practical coverage 12 months: 3 m²/L
Number of coats (guideline)
- Brush/Roller:
- 12 months service: 2 coats of 65 μm DFT each (total 130 μm)
- 24 months service: 3 coats of 65 μm DFT each (total 195 μm)
- Airless spray:
- 12 months service: 1 coat of 130 μm DFT (total 130 μm)
- 24 months service: 2 coats of 100 μm DFT each (total 200 μm)
In all schemes, apply an additional reinforcement coat on high-erosion areas such as leading edges of the hull, keel, rudder, stern gear and sharp edges.
Application conditions and methods
- Application methods: Airless spray, brush, roller.
- Airless spray parameters: 176–210 bar / 2500–3050 psi; tip size 517–521.
- Mixing: Stir thoroughly before use until a uniform consistency is obtained.
- Thinning: Only if necessary in case of premature surface drying. Up to 10% Thinner No. 3 may be added to improve application and drying at high temperatures or in windy conditions.
- Cleaner: GTA007.
- Ventilation and humidity control: Ensure adequate ventilation during application and drying.
- Temperature limits:
- Product temperature: between 5°C and 35°C.
- Ambient temperature: between 5°C and 35°C.
- Substrate temperature: at least 3°C above dew point and below 35°C.
Substrate compatibility and surface preparation
- Suitable substrates: GRP, wood, steel/iron, lead.
- Not suitable for: Aluminium and aluminium alloys, zinc-coated surfaces.
- Existing antifoulings: Can be applied directly over most antifoulings in good condition, except VC17m and PTFE-based antifoulings.
Typical preparation by substrate
- Good condition existing antifouling: Remove all fouling and contamination, including leached layer, using high-pressure fresh water (3000 psi / 207 bar) close to the surface and/or wet sand with P80–P120. If the previous antifouling is incompatible or unknown, seal with a suitable International barrier/sealer coat.
- Poor condition existing antifouling: Remove all loose or flaking material, feather edges and sand all areas. Treat exposed substrate as new construction. If the previous antifouling is incompatible or unknown, apply a suitable International barrier/sealer coat.
- Uncoated GRP: Degrease with appropriate solvent or detergent. Sand with 180–220 grit, clean thoroughly and allow to dry. Pre-prime with an appropriate International primer according to the specified paint system.
- Steel: Degrease with suitable solvent or detergent. Abrasive blast to Sa 2½, near-white metal. If blasting is not possible, prepare with 24/36 grit disc or needle gun to achieve a uniform profile of 50–75 μm; use an angle grinder in difficult areas. Clean thoroughly, allow to dry and prime with an International primer as soon as possible (within 8 hours).
- Lead: Degrease with suitable solvent or detergent, then abrade with 120P grit paper or sander. Clean thoroughly, allow to dry and pre-prime with an appropriate International primer.
- Uncoated wood/plywood: Sand smooth with 80–180 grit, then 280 grit. Remove sanding dust by brushing, cloth or other suitable method. Clean thoroughly, ensure the surface is dry and prime with an International primer as specified.
- Refit situations: The first coat of MICRON 99 must always be applied over a recommended anticorrosive primer system. The primed surface must be dry and free from contaminants (oil, grease, salt, etc.) and overcoated within the specified primer overcoating interval.
- Repair/upgrade: Degrease and high-pressure wash at 3000 psi / 207 bar. Repair corroded areas with the recommended primer system.
Antifoulings should only be sanded wet. Do not dry sand or burn off old antifouling layers. The true colour will appear after immersion.
Applications and use cases
- Professional antifouling protection for GRP, wooden, steel/iron and lead hulls.
- Multi-season protection schemes for boats that remain afloat for up to 12 or 24 months (depending on film build and specified system).
- Refit and maintenance work where MICRON 99 is applied over suitable International primers and, where compatible, over existing antifoulings in good condition.
- High-wear areas such as leading edges, keel, rudder and stern gear, with additional reinforcement coats as recommended.
FAQ
What type of antifouling is MICRON 99?
MICRON 99 is a premium Self Polishing Co-Polymer (SPC) antifouling designed for professional applications.
On which substrates can MICRON 99 be applied?
It is suitable for GRP, wood, steel/iron and lead. It is not suitable for aluminium or aluminium alloys, nor for zinc-coated surfaces.
Can I apply MICRON 99 over an existing antifouling?
Yes, MICRON 99 can be applied directly over most antifoulings in good condition, except VC17m and PTFE-based antifoulings. If the existing product is incompatible or unknown, a suitable International barrier/sealer coat should be used.
How many coats are recommended?
With brush/roller, 2 coats of 65 μm dry film thickness are recommended for around 12 months of service, and 3 coats of 65 μm for around 24 months. With airless spray, 1 coat of 130 μm DFT for 12 months or 2 coats of 100 μm DFT for 24 months are specified.
What are the drying times before immersion?
At 5°C: 24 hours; 15°C: 18 hours; 23°C: 12 hours; 35°C: 12 hours. These are minimum times before immersion.
What colours are available?
MICRON 99 is available in Blue (YBC101), Navy (YBC103), Red (YBC104) and Black (YBC106). Not all colours may be available in all countries.
What is the VOC content of MICRON 99?
The average VOC content is 300 g/L. The product also has 141 g/kg under the EU Solvent Emission Directive 1999/13/EC.
Which thinner and cleaner should be used?
Up to 10% Thinner No. 3 may be added if necessary to improve application and drying in specific conditions. GTA007 is specified as the cleaner.
What personal protective equipment (PPE) should be used?
Consultar ficha técnica del fabricante.
Can MICRON 99 be dry sanded?
No. Antifoulings, including MICRON 99, must only be wet sanded. Do not dry sand or burn off old antifouling layers.
Section 14 – Transport information
During transport, this product must be stored in containers fitted with safety closures. The same requirement applies during storage.
Storage and safety information
- Avoid exposure to air and extreme temperatures.
- To maximise shelf life, keep the container tightly closed between uses and store between 5°C and 35°C.
- Store in a cool, dry place away from direct sunlight.
- Contains biocides.
- Antifoulings must only be wet sanded; never dry sand or remove with a blowtorch.
- For further safety and health information, refer to the product label.
Spillage and disposal
- Do not pour paint or empty cans into watercourses; use designated disposal facilities.
- Allow leftover paint to harden before disposal where possible.
- MICRON 99 residues must not be disposed of via normal household waste streams or dumped in landfills without proper authorisation.
- Disposal of residues must be agreed with the competent authorities.
*Contenido generado por IA
