What is ALEXSEAL Super Fair 212 Fast Converter and why choose it?
ALEXSEAL Super Fair 212 Fast Converter (C2128) is the fast polyamine hardener for the solvent-free, epoxy-based ALEXSEAL Super Fair 212 yacht fairing system. It is designed for professional use where rapid curing and reliable performance are required, especially at lower application temperatures. When mixed 1:1 with Super Fair 212 Standard Base or Thick Base, it produces a lightweight epoxy filler that can be used above and below the waterline and provides an excellent, sandable surface for subsequent ALEXSEAL yacht coating products.
Main features
- Fast curing converter for ALEXSEAL Super Fair 212, with reduced dry-to-sand times compared to the standard converter.
- Optimised for cooler conditions – the Fast Converter is recommended for use below 15 °C.
- Solvent-free epoxy fairing system when combined with Super Fair 212 Base, with 100 percent volume solids after catalysation.
- Reliable mixing control – bases are light green and the Fast Converter is red; after thorough mixing the filler shows a homogeneous colour, helping identify unmixed areas.
- Excellent application properties of the Super Fair 212 system, including good anti-sagging behaviour and easy sanding when fully cured.
- Suitable for use above and below the waterline on correctly prepared substrates; below the waterline the fairing system must be sealed with ALEXSEAL Finish Primer 442.
- Professional packaging – available in ½ gallon and 2 gallon containers.
Technical specifications
Product identity
- Product name: ALEXSEAL Super Fair 212 Fast Converter
- Trade code: C2128
- Chemistry: Hardener based on polyamine/amino adduct
- Intended use: Industrial serial painting; converter for ALEXSEAL Super Fair 212 epoxy fairing compounds
- Professional use only.
Physical and chemical data (converter)
- Physical state: Solid (20 – 25 °C, 1,013 hPa)
- Colour: According to product name (Fast Converter is described as red in the Super Fair 212 system)
- Odour: Amine-like
- Boiling point: Approximately 120 °C
- Flash point: 130 °C
- pH: 13 – 14 at 20 °C (10 percent)
- Water solubility: Insoluble; immiscible with water
- Vapour pressure: Approximately 100 hPa at 50 °C
- Density: Approximately 0.8 g/cm³ at 20 °C
- Solvent separation: less than 3 percent by volume
System and mixing data (with Super Fair 212 Base)
- Compatible bases: ALEXSEAL Super Fair 212 Standard Base (P2121) and Thick Base (P2123)
- Mixing ratio: 1:1 by volume (Base : Converter)
- Mixing ratio by weight: 1:1 (Base : Converter)
- Reduction: The Super Fair 212 system must not be reduced; it is supplied solvent-free.
- Volume solids (catalysed, unreduced system): 100 percent
Pot life and drying with C2128 Fast Converter
Optimal application environment: 15 – 30 °C (60 – 85 °F), 40 – 80 percent relative humidity.
| Temperature |
Pot life with Fast Converter C2128 |
Dry to sand with Fast Converter C2128 |
| 15 °C (60 °F) |
45 min |
15 hrs |
| 20 °C (68 °F) |
35 min |
10 hrs |
| 25 °C (77 °F) |
25 min |
8 hrs |
| 30 °C (85 °F) |
15 min |
4 hrs |
Note: Values are approximate minimum times. Surface temperature, airflow, sunlight and applied film thickness will affect actual curing times. Use the Fast Converter below 15 °C. Do not use the system below 10 °C or above 40 °C.
Coverage of the Super Fair 212 system
The following coverage figures refer to the fully mixed Super Fair 212 system (base plus converter):
| Condition |
Cultural DFT |
m²/l |
m²/gal |
sq. ft./gal |
| Theoretical |
1 mm (1/25 in) |
1 |
3.8 |
41 |
| Practical, average thickness |
6 mm (1/4 in) |
0.15 |
0.6 |
6.4 |
| Practical, average thickness |
8 mm (3/8 in) |
0.11 |
0.44 |
4.8 |
| Practical, average thickness |
10 mm (1/2 in) |
0.07 |
0.29 |
3.2 |
Coverage is dependent on fairing depth and the size and shape of the area being filled.
Applications and use cases
Typical uses
- Yacht fairing above the waterline: Filling and fairing of correctly prepared GRP and metal surfaces before application of ALEXSEAL primers and topcoats.
- Yacht fairing below the waterline: Structural fairing on suitable substrates, where the cured Super Fair 212 system is subsequently sealed with ALEXSEAL Finish Primer 442.
- Industrial serial painting environments: Where an epoxy fairing compound with fast recoat and sanding times is required, under professional process control.
Substrates within the Super Fair 212 system
- Metal substrates: Prepare by grinding or blasting with 36 – 60 grit. Prime with ALEXSEAL Protective Primer 161. Super Fair 212 can 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 surface. All ALEXSEAL primers, except 161, should be sanded with P60 – P80 after overnight dry before applying Super Fair 212.
Application guidance (system)
- Application tools: Trowels, spatulas and straight-edge materials.
- Mixing: Mix Super Fair 212 base and Fast Converter mechanically with slow-turning dough mixers or manually until a completely homogeneous colour is obtained. Do not use drill mixers. Avoid entraining air.
- Application technique: Apply in thin layers, working up to the required thickness before drawing down with a straight edge to minimise air pockets.
- Tool cleaning: Use ALEXSEAL R4042 Epoxy Primer Reducer.
- Sanding: Block sand Super Fair 212 with P36 – P120 grit. Finishing with P80 or finer helps prevent sand scratch print-through in the final system.
- Recoating with Super Fair 212: Follow minimum dry-to-sand times and scratch sand with P36 – P60 grit between applications.
- Overcoating with other ALEXSEAL products: Products such as 302, 303, 328 and 442 may be applied after minimum drying time and after block sanding with P36 – P120 grit.
FAQ
1. What is the mixing ratio for Super Fair 212 Fast Converter?
The Super Fair 212 system is mixed 1:1 by volume and 1:1 by weight, base to converter. The converter must not be reduced with solvent.
2. When should I use the Fast Converter instead of the standard converter?
The Fast Converter C2128 is recommended when working below 15 °C, or whenever shorter pot life and faster dry-to-sand times are required within the specified application window.
3. Can the Super Fair 212 system with Fast Converter be used below the waterline?
Yes. Super Fair 212 can be used above and below the waterline on appropriately prepared substrates. Below the waterline, the system must be sealed with ALEXSEAL Finish Primer 442.
4. What tools are recommended for applying the mixed filler?
Use trowels, spatulas and straight-edge materials. Application in thin layers, built up to the required thickness, helps to avoid air pockets.
5. How soon can I sand the filler when using the Fast Converter?
Depending on temperature, approximate dry-to-sand times with Fast Converter range from about 15 hours at 15 °C to about 4 hours at 30 °C.
6. What is the recommended storage temperature for the converter?
Store between 5 and 35 °C in tightly closed original containers, protected from heat and direct sunlight, in a dry, well-ventilated area.
7. Is the converter hazardous?
According to its Safety Data Sheet, the product causes severe skin burns and eye damage, may cause an allergic skin reaction, is corrosive to the respiratory tract and is toxic to aquatic life with long lasting effects. Appropriate protective measures must be followed.
8. Can I thin the mixed product to adjust viscosity?
No. ALEXSEAL Super Fair 212 must not be reduced. It is designed to be used solvent-free.
Section 14 – Transport information
- UN number: UN 3259
- UN proper shipping name (ADR): POLYAMINES, SOLID, CORROSIVE, N.O.S. (m-phenylenebis(methylamine))
- UN proper shipping name (IMDG): POLYAMINES, SOLID, CORROSIVE, N.O.S. (m-phenylenebis(methylamine), Fatty acids, tall-oil, reaction products with tetraethylenepentamine, Amines, C12-18-(evennumbered) and C18-(unsaturated) alkyl)
- UN proper shipping name (IATA): Polyamines, solid, corrosive, n.o.s. (m-phenylenebis(methylamine))
- Transport hazard class: Class 8 (corrosive)
- Packing group: II
- ADR classification code: C8
- ADR hazard identification number: 80
- Tunnel restriction code (ADR): (E)
- Labels: 8 (corrosive)
- IMDG EmS code: F-A, S-B
- IATA packing instructions: 863 (cargo aircraft), 859 (passenger aircraft), Y844 (limited quantities)
- Environmental hazards: Environmentally hazardous by ADR; marine pollutant under IMDG.
- Special precautions for user: When transported within user premises, always transport in closed, upright and secure containers. Ensure personnel know how to respond in case of incident or spillage.
Section 8 – Individual protection measures
The following personal protective measures are derived from the Safety Data Sheet for ALEXSEAL C2128 Super Fair 212 Fast Converter and apply when handling the converter or the mixed system in professional environments.
Engineering controls
- Provide adequate ventilation. Preferably use local exhaust ventilation and good general extraction.
- If ventilation does not keep exposure to particulates below applicable limits, wear suitable respiratory protection.
Eye and face protection
- Wear safety goggles suitable for protection against liquid splashes.
Hand protection
- Use chemical resistant protective gloves tested in accordance with EN 374.
- For short-term contact, suitable materials include nitrile rubber or neoprene with a minimum thickness greater than 0.4 mm and a breakthrough time over 480 minutes.
- Check glove suitability for the specific workplace, follow the glove manufacturer’s instructions, and replace gloves immediately if damaged or showing signs of wear.
Skin and body protection
- Wear work clothing as customary in the chemical industry.
- Use preventive skin protection such as appropriate skin protection creams, and wash contaminated skin immediately.
Respiratory protection
- Under normal, well-ventilated conditions no specific respirator is required, but inhalation of vapours, dust from sanding and spray mist should be avoided.
- If adequate ventilation cannot be ensured, use suitable respiratory protection.
General hygiene measures
- Do not eat, drink or smoke while working with the product.
- Avoid contact with skin, eyes and clothing.
- Observe standard precautions when handling chemicals and comply with local health and safety regulations.
Contenido generado por IA
