ACRYLIC TOPCOAT X CONVERTER SPRAY

What is ACRYLIC TOPCOAT X CONVERTER SPRAY and why choose it

ACRYLIC TOPCOAT X CONVERTER SPRAY (ALEXSEAL C5120) is a professional two-component converter used with ALEXSEAL Acrylic Topcoat X. Based on polyisocyanate hardener technology, it activates the acrylic polyester topcoat system to deliver very high gloss, excellent colour stability and outstanding resistance to UV rays, salt water, abrasion and fuel. Specially designed for the yachting industry and industrial serial painting, it allows easy spraying, very good leveling and reliable curing performance.

Main features

• Two-component converter based on polyisocyanates for ALEXSEAL Acrylic Topcoat X (Base Color).
• Professional-grade performance for the yachting industry and other industrial serial painting applications.
• Supports very high gloss and depth of image when used within the ALEXSEAL Acrylic Topcoat X system.
• Excellent durability of the coating system with proven resistance to UV rays, salt water, abrasion and fuel (properties of the complete Acrylic Topcoat X system).
• Optimised spray application with defined viscosity and nozzle/pressure parameters for conventional, HVLP and Airmix equipment.
• Adjustable drying times when combined with ALEXSEAL Topcoat Accelerator A5035.
• Available packaging: 1 Pint and 1/2 Gallon containers (C5120).
• Designed for external areas not subject to permanent water immersion when used as part of the Acrylic Topcoat X system.

Technical specifications

Chemical and physical data (Converter C5120)

• Chemical nature: Hardener based on polyisocyanates.
• Intended use: Industrial serial painting; converter for ALEXSEAL Acrylic Topcoat X.
• Physical state: Liquid (20 – 25 °C, 1,013 hPa).
• Colour: According to product name.
• Odour: Characteristic.
• Boiling range: Approximately 120 °C.
• Flash point: 33 °C (ISO 13736).
• Auto-ignition temperature: > 400 °C.
• Water solubility: Insoluble; immiscible with water.
• Vapour pressure: Approximately 100 hPa (50 °C).
• Density: 1.04 g/cm³.
• Viscosity, kinematic: > 21 mm²/s.
• Viscosity (flow time): approx. 14 s (DIN 53211, 4 mm); < 15 s (ISO 2431, 6 mm).
• VOC content: 42.25 %, 439 g/l (according to Directive 2010/75/EU).

Regulatory classification (CLP / GHS)

• Flammable liquids, Category 3 – H226: Flammable liquid and vapour.
• Acute toxicity, Category 4 (inhalation) – H332: Harmful if inhaled.
• Skin sensitisation, Category 1 – H317: May cause an allergic skin reaction.
• STOT single exposure, Category 3 (central nervous system) – H336: May cause drowsiness or dizziness.
• STOT single exposure, Category 3 (respiratory system) – H335: May cause respiratory irritation.
• Supplemental statement – EUH066: Repeated exposure may cause skin dryness or cracking.

Main hazardous components

• Hexamethylene diisocyanate oligomers.
• n-butyl acetate.
• 2-methoxy-1-methylethyl acetate.

System information with ALEXSEAL Acrylic Topcoat X

• Recommended substrate primer: ALEXSEAL Finish Primer 442, smoothly sanded with 320-grit sandpaper.
• Mix ratio for spray application (by volume):
  • 2 parts ALEXSEAL Acrylic Topcoat X (Base Color).
  • 1 part ACRYLIC TOPCOAT X CONVERTER SPRAY (C5120).
  • 40 – 60 % ALEXSEAL Acrylic Reducer (R5101 / R5102 / R5103) relative to the total of base + converter (example: 2 : 1 : 1.5 = 50% reduction).
• Viscosity for application (mixed material):
  • Zahn #2 cup: approx. 18 – 22 s.
  • DIN 4 mm cup: approx. 13 – 16 s.
  • ISO 3 mm: approx. 60 – 80 s.
• Recommended spray equipment (mixed material):
  • Gravity gun nozzle: 1.0 – 1.4 mm (conventional & HVLP).
  • Siphon cup nozzle: 1.6 mm (conventional & HVLP).
  • Pressure pot fluid nozzle: 1.0 – 1.3 mm (conventional & HVLP).
  • Atomizing pressure: 3.0 – 5.0 bar (42 – 60 PSI) conventional & HVLP.
  • Pot pressure: 0.7 – 1.5 bar (10 – 20 PSI) conventional & HVLP.
  • Airmix tip: 0.18 – 0.28 mm (0.007 – 0.011 in); inlet pressure 3.0 – 5.0 bar (42 – 70 PSI).
• Recommended film thickness (Topcoat X system):
  • 2 coats at 50 – 75 µm (2 – 3 mils) wet film thickness per coat.
  • Resulting dry film thickness: 40 – 60 µm (1.5 – 2 mils) for 2 coats.
  • Maximum recommended spray application: 3 coats totalling 300 µm (12 mils) WFT or 100 µm (4 mils) DFT.
• Pot life and drying of mixed system (without accelerator) at 40 % – 80 % RH:
  • Pot life approx.: 6 h (15 °C), 4 h (20 °C), 3 h (25 °C), 2 h (30 °C).
  • Dust free: 90 min (15 °C), 60 min (20 °C), 45 min (25 °C), 30 min (30 °C).
  • Polishable: 36 h (15 °C), 30 h (20 °C), 24 h (25 °C), 18 h (30 °C).
  • Fully cured: 21 days (15 °C), 18 days (20 °C), 14 days (25 °C), 10 days (30 °C).
• Pot life and drying of mixed system (with ALEXSEAL Topcoat Accelerator):
  • Pot life: 3 h (15 °C), 3 h (20 °C), 2 h (25 °C), 2 h (30 °C).
  • Tape dry with accelerator: 18 h (15 °C), 12 h (20 °C), 9 h (25 °C), 6 h (30 °C).
• Optimal application environment: 15 – 30 °C (60 – 85 °F), 40 – 80 % RH; minimum 3 °C (5.4 °F) above dew point. Ideal temperature: 25 °C (77 °F).

Applications and use cases

• Yacht and marine topcoat systems: Converter for ALEXSEAL Acrylic Topcoat X on external yacht and boat surfaces not subject to permanent water immersion.
• Industrial serial painting: For professional spray lines where high-gloss, durable acrylic polyester finishes are required.
• Refinishing and repair work: Enables sanding and polishing of ALEXSEAL Acrylic Topcoat X after a short curing period for high-quality surface repair.

FAQ

1. What is the function of ACRYLIC TOPCOAT X CONVERTER SPRAY?

   It is the polyisocyanate-based converter (hardener) for ALEXSEAL Acrylic Topcoat X. When mixed with the base color and reducer, it initiates the curing reaction and provides the final mechanical and chemical properties of the coating.

2. What is the correct mix ratio with ALEXSEAL Acrylic Topcoat X?

   The recommended spray mix is 2 parts ALEXSEAL Acrylic Topcoat X (Base Color), 1 part ACRYLIC TOPCOAT X CONVERTER SPRAY (C5120), plus 40 – 60 % ALEXSEAL Acrylic Reducer by volume relative to the base and converter.

3. Can the mixed material be stored for later use?

   Pot life of the mixed system is approximately 2 – 6 hours depending on temperature (shorter at higher temperatures and when accelerator is used). After this time the mixture should not be used.

4. On which areas can the complete system be used?

   The ALEXSEAL Acrylic Topcoat X system, including the converter, is designed for external areas that are not subject to permanent water immersion.

5. Which primer is recommended under the topcoat system?

   ALEXSEAL Finish Primer 442 is recommended, smoothly sanded with 320-grit sandpaper prior to applying the topcoat mix.

6. How should I adjust drying time?

   You can add ALEXSEAL Topcoat Accelerator A5035 to the catalyzed and reduced mix of Acrylic Topcoat X and converter. For each 2 quarts (2 liters) of mixed material, a maximum of 3 caps or 30 ml (1 oz) of accelerator may be added.

7. Is this product suitable for non-professional use?

   No. Both the technical data sheet and the safety data sheet specify that it is for professional or industrial use only.

8. What should I do if skin or eye contact occurs?

   For skin: remove contaminated clothing and wash thoroughly with soap and water; do not use solvents or thinners. For eyes: rinse immediately with plenty of clean water for at least 10 minutes and seek medical advice.

9. What is the recommended storage temperature?

   The converter should be stored in tightly closed original containers in a cool, dry, well-ventilated place at 5 – 35 °C, away from heat, ignition sources, oxidizing agents and strong acids or bases.

10. What is the shelf life of the unopened product?

    Consultar ficha técnica del fabricante.

Section 14 – Transport information

• UN number / ID number: UN 1263.
• UN proper shipping name: PAINT RELATED MATERIAL.
• Transport hazard class: Class 3 (Flammable liquids).
• Packing group: III.
• ADR (road):
  • Classification code: F1.
  • Hazard identification number: 30.
  • Labels: 3.
  • Tunnel restriction code: (D/E).
  • Not classified as environmentally hazardous.
  • Within user’s premises: always transport in closed, upright and secure containers; ensure handlers know emergency procedures in case of incident or spillage.
• IMDG (sea):
  • Proper shipping name: PAINT RELATED MATERIAL.
  • Class: 3.
  • Packing group: III.
  • Labels: 3.
  • EmS code: F-E, S-E.
  • Marine pollutant: no.
• IATA (air):
  • Proper shipping name: PAINT RELATED MATERIAL.
  • Class: 3.
  • Packing group: III.
  • Cargo aircraft: Packing instruction 366.
  • Passenger aircraft: Packing instruction 355; Limited Quantities: Y344.
  • Labels: Flammable Liquids.
• Bulk marine transport: Not applicable for product as supplied.
• Note: Transport classifications are based on the unpackaged substance and may vary with packaging, transport mode and local regulations.

Section 8 – Individual protection measures

Engineering controls

• Provide adequate general and local exhaust ventilation to keep vapour and particulate concentrations below occupational exposure limits.
• Where ventilation is insufficient, suitable respiratory protection must be used.

Personal protective equipment

• Eye/face protection: Use safety goggles to protect against solvent splashes.
• Hand protection:
  • Use chemical-resistant protective gloves tested in compliance with EN 374.
  • Recommended materials for short-term contact (splash protection): nitrile rubber or neoprene.
  • Minimum material thickness: > 0.4 mm; breakthrough time: > 480 minutes.
  • Check gloves for suitability and integrity before use; replace immediately if damaged or worn.
  • Use preventive skin protection cream and wash contaminated skin promptly.
• Skin and body protection: Wear suitable protective clothing, adapted where necessary to the potential for dangerously explosive atmospheres.
• Respiratory protection:
  • During spraying: use air-fed respirators.
  • For other well-ventilated operations: a half-mask with combination charcoal and particulate filters may be used, or air-fed equipment.

General protective and hygiene measures

• Persons with a history of asthma, allergies or chronic/recurrent respiratory disease should not work with this preparation.
• Avoid inhalation of vapours, spray mist, sanding dust or particulates from this product.
• Avoid contact with skin, eyes and clothing.
• Do not eat, drink or smoke in the application area.
• Ensure strict adherence to local occupational health and safety regulations.