SUPER BUILD 302 CONVERTER

What is ALEXSEAL Super Build 302 Converter and why choose it

ALEXSEAL Super Build 302 Converter (C3012/C3052) is a polyamine-based hardener designed specifically for use with ALEXSEAL Super Build 302 epoxy high build primer / surfacer. Supplied as a professional-grade, yellow converter, it reacts with the Super Build 302 base to create a smooth, water‑resistant, mechanically robust coating that is easy to sand. Its excellent spray characteristics and fast drying help maximize efficiency in industrial serial painting applications.

Main features

• Dedicated converter for Super Build 302: Formulated to crosslink with ALEXSEAL Super Build 302 high build epoxy primer / surfacer.
• Polyamine / amino-adduct chemistry: Hardener based on polyamine/amino adduct for high mechanical resistance and durable film formation.
• Professional spray performance: Supports conventional, HVLP and airless spray setups with defined nozzle sizes and pressures.
• Fast drying system: When mixed with Super Build 302 base, the system offers fast tape-dry and recoat times, which can be further accelerated with ALEXSEAL A4030 Accelerator.
• High build capability: Enables application of multiple high-build coats of Super Build 302, achieving up to 500 μm (20 mils) dry film thickness in spray applications.
• Consistent colour control: Converter supplied in yellow (and grey/yellow in some packs) to deliver the specified off‑white/light yellow mix color with the base.
• Professional use only: Intended for industrial users with appropriate facilities, ventilation and safety procedures.

Technical specifications

Product identification

• Product name: ALEXSEAL Super Build 302 Converter
• Trade name (SDS): ALEXSEAL C3012 – Super Build 302 Converter 1269 Yellow
• Chemical nature: Hardener based on polyamine / amino adduct
• Intended use: Industrial serial painting; converter for ALEXSEAL Super Build 302 high build primer / surfacer
• Professional use only

Appearance and physical data

• Physical state: Liquid (20 – 25 °C, 1,013 hPa)
• Colour: According to product name (Yellow / Grey Yellow depending on version)
• Odour: Characteristic
• Boiling range: Approximately 120 °C
• Flash point: 11.5 °C (ISO 13736)
• Auto‑ignition temperature:> 400 °C
• pH: 10 – 11 at 20 °C (10 % solution)
• Water solubility: Insoluble
• Vapour pressure: 100 hPa (50 °C)
• Density: 1.5 g/cm³
• Kinematic viscosity:> 21 mm²/s
• Flow time: 61 – 90 s (DIN 53211, 4 mm) / 41 s (ISO 2431, 6 mm)

System data with Super Build 302 base

• Compatible base: P3002 ALEXSEAL Super Build 302
• Standard mixing ratio (by volume):
  • 1 part P3002 Super Build 302 base
  • 1 part Super Build 302 Converter (C3012 Yellow or C3052 Grey)
  • Plus 10 – 25 % R3040 ALEXSEAL High Build Epoxy Reducer, depending on application
• Typical reduction examples:
  • 1 : 1 : 1/2 → 25 % reduction for conventional spray
  • 1 : 1 : 1/4 → 12.5 % reduction for airless spray
• Volume solids of mixed primer (base + converter, without reducer): 60 %
• Recommended DFT per system (Super Build 302 film):
  • 2 coats: 150 – 300 μm (6 – 12 mils) DFT
  • 3 coats: 225 – 450 μm (9 – 15 mils) DFT
  • Maximum total (spray): 500 μm (20 mils) DFT / 960 μm (36 mils) WFT
  • Minimum DFT before sanding: 150 μm (6 mils)

Pot life and drying of mixed product (Super Build 302 base + Converter)

Optimal application environment range: 15 °C (60 °F), 40 % RH up to 30 °C (85 °F), 80 % RH.

• Approximate pot life (without accelerator):
  • 15 °C: 8 h
  • 20 °C: 6 h
  • 25 °C: 6 h
  • 30 °C: 4 h
• Approximate pot life with A4030 Accelerator:
  • 15 °C: 6 h
  • 20 °C: 4 h
  • 25 °C: 4 h
  • 30 °C: 3 h
• Fully cured:
  • 15 °C: 21 days
  • 20 °C: 18 days
  • 25 °C: 14 days
  • 30 °C: 10 days
• Tape dry without accelerator: 30 h (15 °C), 24 h (20 °C), 18 h (25 °C), 12 h (30 °C)
• Tape dry with accelerator: 24 h (15 °C), 18 h (20 °C), 12 h (25 °C), 10 h (30 °C)
• Recoat with Super Build 302 (same product): 4 h min at 15 °C, 2 h min at 20 °C, 1 h min at 25–30 °C; 24 h max
• Overcoat with other ALEXSEAL products (e.g. 202, 212, 303, 328, 414, 442, 501/X): 12 h min, 24 h max; sanding required after max time.
• Minimum surface temperature during drying: 15 °C (60 °F)
• Ideal temperature: 25 °C (77 °F)
• Minimum application conditions: At least 3 °C (5.4 °F) above dew point.

VOC content

• VOC (Directive 2010/75/EU, industrial emissions): 26.47 %; 400 g/l

Applications and use cases

• Industrial serial painting: Specified in the safety data sheet as the intended use of the converter in combination with ALEXSEAL Super Build 302.
• High build epoxy surfacing: Used to cure the Super Build 302 base wherever high film build, water resistance, smooth sanding and mechanical strength are required.
• Fairing and levelling systems: Integral part of the coating system used to seal and high‑build over sanded fillers such as ALEXSEAL Fairing Compound 202 (via the mixed Super Build 302 primer).
• Non‑porous surfacer prior to finish primer: With Super Build 302 base, it creates a smooth, non‑porous surfacer before overcoating with ALEXSEAL Finish Primer 442.

FAQ – ALEXSEAL Super Build 302 Converter

1. 1. What is the role of Super Build 302 Converter in the system?

   It is the polyamine hardener that reacts with ALEXSEAL Super Build 302 epoxy base to form a cured high build coating with high mechanical resistance and water resistance.

2. 2. What mixing ratio should I use with Super Build 302 base?

   Mix 1 part by volume P3002 ALEXSEAL Super Build 302 base with 1 part by volume Super Build 302 Converter, then add 10–25 % by volume of R3040 ALEXSEAL High Build Epoxy Reducer, depending on spray method and conditions.

3. 3. Can I accelerate the drying of the mixed product?

   Yes. You can add A4030 ALEXSEAL Accelerator for Super Build 302. For each 1 gallon of P3002 base, add a maximum of 1 pint (16 oz) of A4030 Accelerator. Adding more is not recommended, as it excessively reduces pot life.

4. 4. Is Super Build 302 Converter flammable?

   Yes. According to the safety data sheet it is classified as a flammable liquid, Category 2, with a flash point of 11.5 °C. Keep away from heat, hot surfaces, sparks, open flames and other ignition sources, and ensure good ventilation.

5. 5. What personal protective equipment is required when using this converter?

   Wear chemical‑resistant gloves (e.g. nitrile or neoprene), safety goggles, suitable protective clothing and appropriate respiratory protection if solvent vapour concentrations exceed occupational exposure limits. See the dedicated section on personal protection below.

6. 6. How should Super Build 302 Converter be stored?

   Store in tightly closed original containers in a cool, dry, well‑ventilated place, protected from heat and direct sunlight, at 5–35 °C. Keep away from oxidising agents and strong acids or bases, and prevent unauthorised access.

7. 7. What is the recommended application method for the mixed primer?

   The mixed Super Build 302 (base + converter + reducer) can be applied by conventional or HVLP spray, siphon cup, pressure pot or airless equipment, following the specified nozzle sizes, pressures and wet film thicknesses in the technical data sheet.

8. 8. Can the cured system be overcoated with other ALEXSEAL products?

   Yes. After the appropriate drying time and, if necessary, sanding, the Super Build 302 system can be overcoated with other ALEXSEAL products including 202, 212, 303, 328, 414, 442 or 501/X, within the 12–24 hour overcoat window stated in the data sheet.

Section 14 – Transport information

The following transport data are taken directly from the Safety Data Sheet for ALEXSEAL C3012 Super Build 302 Converter.

UN number and proper shipping name

• UN number (ADR/IMDG/IATA): UN 3469
• UN proper shipping name: PAINT RELATED MATERIAL, FLAMMABLE, CORROSIVE

Transport hazard class and packing group

• ADR class: 3 (subsidiary risk 8)
• IMDG class: 3 (subsidiary risk 8)
• IATA class: 3 (subsidiary risk 8)
• Packing group: II
• Classification code (ADR): FC
• Hazard identification number (ADR): 338
• ADR tunnel restriction code: (D/E)
• Labels: 3 (Flammable Liquids) and 8 (Corrosive)

Mode‑specific details

• ADR (Road transport): Class 3, PG II, code FC; label 3 (8).
• IMDG (Sea transport): Class 3, PG II; EmS F‑E, S‑C; not classified as a marine pollutant.
• IATA (Air transport – cargo):
  • Packing instruction: 363
  • Packing group: II
  • Labels: Flammable Liquids, Corrosives
• IATA (Air transport – passenger):
  • Packing instruction: 352
  • Limited quantity packing instruction: Y340
  • Packing group: II
  • Labels: Flammable Liquids, Corrosives

Environmental hazards

• ADR – environmentally hazardous: No
• IMDG – marine pollutant: No

Special precautions for user

• The SDS notes that transport classifications are provided for information and are based on the properties of the unpackaged material.
• Transportation classifications may vary depending on mode of transport, packaging size and regional regulations.
• If transported within the user’s premises, the product should always be in closed, upright and secure containers. Personnel should be trained and aware of procedures in case of incident or spillage.

Section 8 – Personal protective measures

The Safety Data Sheet for ALEXSEAL C3012 Super Build 302 Converter provides the following guidance for exposure controls and individual protection.

Engineering controls

• Provide adequate ventilation using local exhaust and good general extraction.
• If ventilation is insufficient to keep aerosol and solvent vapour concentrations below occupational exposure limits, appropriate respiratory protection must be worn.

Eye and face protection

• Wear safety goggles to protect against solvent splashes.

Hand protection

• Use chemical‑resistant protective gloves tested in compliance with EN 374.
• Recommended glove materials for short‑term contact (splash protection):
  • Nitrile rubber
  • Neoprene
• Minimum glove thickness: > 0.4 mm
• Breakthrough time:> 480 minutes
• Before use, test gloves for suitability at the specific workplace (mechanical resistance, product compatibility, antistatic properties).
• Follow the glove manufacturer’s instructions for use, storage, care and replacement.
• Replace gloves immediately when damaged or worn.
• Preventive skin protection (skin protection cream) is recommended and contaminated skin should be washed immediately.

Skin and body protection

• Wear suitable protective clothing, adapted to the probability of dangerous or explosive atmospheres.

Respiratory protection

• If solvent concentrations exceed air limit values, use respiratory protection approved for organic vapours.
• Use a half‑mask model with appropriate cartridge or air‑fed system.
• Wear respiratory protection whenever it is specified for a particular use scenario.

General protective and hygiene measures

• Do not eat, drink or smoke while working with the product.
• Avoid contact with skin, eyes and clothing.
• Avoid inhalation of dust from sanding, particulates and spray mist generated during application.

Contenido generado por IA.