What ALEXSEAL Super Fair 212 Base Is and Why Choose It
ALEXSEAL Super Fair 212 Base is a solvent-free, epoxy-based, lightweight filler base designed specifically for professional yacht fairing and filling work. When mixed 1:1 with the appropriate ALEXSEAL Super Fair 212 converter, it produces a high-build epoxy fairing compound with excellent anti-sagging and sanding properties. The cured film provides a smooth, stable surface that can be overcoated with other ALEXSEAL Yacht Coating products for high-quality finishes above and below the waterline.
Main Features
- Solvent-free epoxy system: 100% volume solids when catalyzed, minimizing solvent emissions and shrinkage.
- Lightweight filler base: Optimized for yacht fairing where low weight and high build are required.
- Excellent workability: Easy to mix and apply with trowels or spatulas; designed to avoid sagging on vertical surfaces.
- Consistent color control: Base and converters have different colors; once mixed, the filler shows a homogeneous color for easy visual control of mixing quality.
- High-build capability: Practical coverage data provided up to 10 mm (1/2") film thickness.
- Durable, re-coatable surface: Once cured and sanded, provides an excellent substrate for ALEXSEAL primers and topcoats.
- Professional-grade system: Intended for industrial serial painting and professional yacht applications.
Key Technical Characteristics
Product Identification
- Commercial name: ALEXSEAL P2121 – Super Fair 212 Base 60ED Light Green
- Type: Solvent-free, epoxy-based lightweight filler base
- Chemical nature: Mixture of synthetic resins and pigments
- Physical state: Solid (20–25 °C, 1,013 hPa)
- Colour (base): Light green
- Typical odour: Characteristic
System and Colors (Mixed Filler)
- Color of mixed filler (English TDS): Gray
- Color of mixed filler (Spanish TDS): Beige
- Standard Base: Light green
- Thick Base: Light green
- Standard Converter: Light gray
- Fast Converter: Red
Mixing and Pot Life
- Mix ratio by volume: 1 : 1 (Base : Converter)
- Mix ratio by weight: 1 : 1 (Base : Converter)
- Reduction: Must not be reduced; supplied as a solvent-free system.
Pot life with C2127 Standard Converter
- 15 °C (60 °F): 1 hour
- 20 °C (68 °F): 50 minutes
- 25 °C (77 °F): 40 minutes
- 30 °C (85 °F): 30 minutes
Pot life with C2128 Fast Converter
- 15 °C (60 °F): 45 minutes
- 20 °C (68 °F): 35 minutes
- 25 °C (77 °F): 25 minutes
- 30 °C (85 °F): 15 minutes
Drying and Recoat Times
Recommended application environment: 15–30 °C (60–85 °F), 40–80% relative humidity. Use Fast Converter below 15 °C/60 °F. Do not use below 10 °C/50 °F or above 40 °C/104 °F.
Dry to sand – with C2127 Standard Converter
- 15 °C (60 °F): 36 hours
- 20 °C (68 °F): 24 hours
- 25 °C (77 °F): 18 hours
- 30 °C (85 °F): 12 hours
Dry to sand – with C2128 Fast Converter
- 15 °C (60 °F): 15 hours
- 20 °C (68 °F): 10 hours
- 25 °C (77 °F): 8 hours
- 30 °C (85 °F): 4 hours
Values are approximate; surface temperature, airflow, sunlight and film thickness can affect actual times.
Coverage
- Volume solids (catalyzed, no reduction): 100%
| Film thickness (wet/dry) |
Theoretical coverage |
Practical coverage (average) |
| 1 mm (approx. 1/25") |
1 m²/l (3.8 m²/gal, 41 sq. ft./gal) |
Consultar ficha técnica del fabricante. |
| 6 mm (1/4") |
Consultar ficha técnica del fabricante. |
0.15 m²/l (0.6 m²/gal, 6.4 sq. ft./gal) |
| 8 mm (3/8") |
Consultar ficha técnica del fabricante. |
0.11 m²/l (0.44 m²/gal, 4.8 sq. ft./gal) |
| 10 mm (1/2") |
Consultar ficha técnica del fabricante. |
0.07 m²/l (0.29 m²/gal, 3.2 sq. ft./gal) |
Physical and Chemical Properties (Base)
- Boiling point: approx. 120 °C
- Flash point: 101 °C (ISO 13736)
- pH (10% dispersion, 20 °C): 6–8
- Kinematic viscosity: > 21 mm²/s
- Flow time: > 150 s (4 mm cup, DIN 53211); > 100 s (6 mm cup, ISO 2431)
- Water solubility: Insoluble; immiscible with water
- Vapour pressure: approx. 100 hPa (50 °C)
- Density: approx. 0.8 g/cm³ (20 °C)
- Solvent separation: < 3% (V)
Substrate Preparation
- Substrate must be clean, dry and free from dust, grease, oil and other contaminants.
- For optimum adhesion, grind and/or blast with 36–60 grit before priming.
- Full fairing systems require a heavily abraded substrate.
- Thin fairing systems (< 3 mm / approx. 1/8–0.012") require a less aggressive profile.
Metal substrates
- Prime with ALEXSEAL Protective Primer 161 for best mechanical and corrosion resistance.
- Super Fair 212 may be applied directly over Protective Primer 161 without sanding for up to 6 months.
GRP substrates
- Use ALEXSEAL Super Build 302, Finish Primer 442 or Protective Primer 161 over a properly prepared GRP surface.
- All ALEXSEAL primers (except 161) should be sanded with P60–P80 after overnight dry before applying Super Fair 212.
Application and Sanding
- Recommended tools: trowels, spatulas, straight edge materials.
- Mix base and converter until a fully homogeneous color is obtained; unmixed areas can lead to improper curing.
- Mix mechanically with slow-turning dough mixers or manually.
- Do not use drill mixers; avoid incorporating air bubbles.
- Apply in thin layers, building up to desired thickness; pull out with a straight edge to avoid air pockets.
- Tool cleaning: R4042 ALEXSEAL Epoxy Primer Reducer.
- Sanding: block sand with P36–P120 grit. Finishing with P80 grit or finer helps prevent sand scratch print-through in the final coating system.
- Recoating Super Fair 212 over itself: follow minimum dry-to-sand times and scratch sand with P36–P60 grit between layers.
- Overcoating with other ALEXSEAL products: products such as 302, 303, 328 and 442 may be applied after minimum dry times and block sanding with P36–P120 grit.
Trade Names and Packaging
- P2121: ALEXSEAL Super Fair 212 Standard Base – ½ gal, 2 gal
- P2123 / P2127: ALEXSEAL Super Fair 212 Thick Base – ½ gal, 2 gal
- C2127 / C2076: ALEXSEAL Super Fair 212 Standard Converter – ½ gal, 2 gal
- C2128: ALEXSEAL Super Fair 212 Fast Converter – ½ gal, 2 gal
Applications and Use Cases
- Professional yacht fairing: Designed as a primary fairing compound for new builds or major refits where large surfaces need levelling above and below the waterline.
- High-build repair filler: Suitable for correcting hull imperfections, dents and surface irregularities on properly prepared substrates.
- Metal and GRP hulls: Can be used on metal substrates primed with ALEXSEAL Protective Primer 161 and on GRP substrates primed with ALEXSEAL Super Build 302, Finish Primer 442 or Protective Primer 161.
- Industrial serial painting: As specified in the safety data sheet, suitable for industrial coating operations where repeatable performance is required.
FAQ
1. What is the correct mixing ratio for ALEXSEAL Super Fair 212 Base?
Mix ALEXSEAL Super Fair 212 Base and the appropriate converter in a 1:1 ratio by volume or by weight. The product must not be reduced with solvent.
2. Can Super Fair 212 be used below the waterline?
Yes. It may be used above and below the waterline. When used below the waterline, the cured and sanded filler must be sealed with ALEXSEAL Finish Primer 442.
3. How should the substrate be prepared before application?
The surface must be clean, dry and free of dust, grease, oil and other contaminants. It should be ground and/or blasted with 36–60 grit before priming. Metal and GRP substrates must be primed with the recommended ALEXSEAL primers before applying the filler.
4. Which tools are recommended for applying the filler?
Use trowels, spatulas and straight edge materials. Do not use drill mixers for mixing; use slow-turning dough mixers or mix manually to avoid air inclusion.
5. How do I avoid air pockets in the applied filler?
Apply the product in thin layers, working it to the required thickness and then pulling it out with a straight edge. Avoid whipping air into the mixture during mixing.
6. When can I sand ALEXSEAL Super Fair 212?
Dry-to-sand times depend on temperature and converter used. With the standard converter at 20 °C, sanding is usually possible after about 24 hours; with the fast converter, after about 10 hours. Always follow the minimum times in the technical data sheet.
7. Which grit should I use for sanding?
Block sand with P36–P120 grit. Finishing with P80 grit or finer helps minimize sand scratch print-through in subsequent coating layers.
8. What products can be applied over Super Fair 212?
After the minimum dry-to-sand time and proper sanding, you can overcoat with ALEXSEAL products such as Super Build 302, primers 303 and 328, and Finish Primer 442.
9. Is the product suitable for non-epoxy substrates?
For applications over substrates including epoxy resins or other special substrates, the manufacturer recommends contacting your ALEXSEAL representative.
10. Is Super Fair 212 Base hazardous?
The base component is classified as causing skin and eye irritation, may cause an allergic skin reaction and is toxic to aquatic life with long lasting effects. Appropriate protective measures must be followed (see sections below).
Section 14 – Transport Information
- UN number: UN 3077
- UN proper shipping name (ADR): Environmentally hazardous substance, solid, n.o.s. (reaction product: bisphenol-A-(epichlorhydrin) and epoxy resin (number average molecular weight ≤ 700), reaction product: bisphenol-F-(epichlorhydrin), epoxy resin)
- UN proper shipping name (IMDG / IATA): Environmentally hazardous substance, solid, n.o.s. with the same components as above.
- Transport hazard class: Class 9 (miscellaneous dangerous goods)
- Packing group: III
- ADR classification code: M7
- Hazard identification number (ADR): 90
- Labels: 9 – Miscellaneous Dangerous Goods
- Tunnel restriction code: (-)
- EmS (IMDG): F-A, S-F
- Environmentally hazardous: Yes (ADR, IMDG, IATA)
- Marine pollutant (IMDG): Yes
- Bulk transport according to IMO instruments: Not applicable for product as supplied.
Section 8 – Personal Protective Measures
Exposure Controls
- Provide good ventilation using local exhaust and general extraction where the product is mixed, applied or sanded.
- Avoid inhalation of dust from sanding, spray mist or vapours generated during application.
Individual Protection Equipment
- Eye and face protection: Wear safety goggles to protect against splashes.
- Hand protection:
- Use chemical-resistant protective gloves tested according to EN 374.
- Recommended materials for short-term contact (splash protection): nitrile rubber or neoprene.
- Minimum thickness: > 0.4 mm; breakthrough time: > 480 minutes.
- Check suitability of gloves for the specific workplace (mechanical resistance, product compatibility, antistatic properties).
- Skin and body protection: Wear work clothing as usual in the chemical industry. Wash skin after contact. Preventive skin protection cream is recommended.
- Respiratory protection: Normally not required, but avoid breathing vapours and dusts. In case of sanding or poor ventilation, suitable respiratory protection may be necessary according to workplace assessment.
- General protective measures: Do not eat, drink or smoke while working with the product. Avoid contact with skin, eyes and clothing.
*Contenido generado por IA
