INTERIOR TOPCOAT 578 REDUCER

What is ALEXSEAL Interior Topcoat 578 Reducer and why choose it

ALEXSEAL Interior Topcoat 578 Reducer is a dedicated solvent component designed to adjust the application viscosity of the ALEXSEAL Interior Topcoat 578 polyurethane coating. Supplied under the trade names R6062 ALEXSEAL Interior Topcoat Reducer and R6068 ALEXSEAL Interior Topcoat Reducer Slow, it is used exclusively in professional environments to achieve the correct flow, atomization and film build when spraying or rolling the Interior Topcoat 578 system.

By working within the specified mixing ratios, the reducer helps applicators obtain consistent wet film thickness, smooth finishes and reliable drying behavior on engine room components and yacht interiors.

Main features

• Specifically formulated for ALEXSEAL Interior Topcoat 578 polyurethane system.
• Available as standard reducer (R6062) and slow reducer (R6068) to suit different application conditions.
• Used for both spray and brush/roller applications.
• Supports controlled film builds and uniform appearance in interior marine environments.
• Intended for professional use only.

Technical characteristics and mixing data

Trade names and packaging

• R6062 ALEXSEAL Interior Topcoat Reducer – 1 Gal
• R6068 ALEXSEAL Interior Topcoat Reducer Slow – 1 Gal

Recommended mixing ratios with ALEXSEAL Interior Topcoat 578

The reducer is always used in combination with ALEXSEAL Interior Topcoat 578 (base color) and C6402 ALEXSEAL Interior Topcoat Converter.

• Spray application
  • 4 parts by volume ALEXSEAL Interior Topcoat 578 (Base Color)
  • 1 part by volume C6402 Interior Topcoat Converter
  • 20 – 30 % by volume R6062 Interior Topcoat Reducer or R6068 Interior Topcoat Reducer Slow
  • Example: 4 : 1 : 1 to 1½ = 20 – 30 % reduction with reducer
• Brush and roller application
  • 4 parts by volume ALEXSEAL Interior Topcoat 578 (Base Color)
  • 1 part by volume C6402 Interior Topcoat Converter
  • 10 – 15 % by volume R6062 Interior Topcoat Reducer
  • Example: 4 : 1 : ½ to ¾ = 10 – 15 % reduction with reducer

The exact quantity of reducer required may vary depending on application conditions. Mixed Interior Topcoat 578 material must be filtered before application.

Viscosity guidance for the mixed coating system

When Interior Topcoat 578 is correctly mixed with converter and reducer, the following application viscosities are specified:

• Zahn #2 cup: approximately 15 – 18 seconds
• DIN 4 cup (4 mm): approximately 12 – 18 seconds

Typical spray equipment parameters for the mixed coating

• Gravity spray gun nozzle size: 1.2 – 1.6 mm (conventional and HVLP)
• Pressure pot fluid nozzle size: 1.0 – 1.3 mm (conventional and HVLP)
• Atomizing pressure: 3.0 – 5.0 bar (42 – 70 PSI)
• Pot pressure: 0.7 – 1.5 bar (10 – 20 PSI)
• Airmix equipment: 0.18 – 0.28 mm (0.007 – 0.011) nozzle, inlet pressure 3.0 – 5.0 bar (42 – 70 PSI)

Applications and use cases

ALEXSEAL Interior Topcoat 578 Reducer is intended to be used exclusively as part of the ALEXSEAL Interior Topcoat 578 system:

• Engine room components: assists in achieving smooth, durable films on parts coated with Interior Topcoat 578 in engine rooms.
• Yacht interiors: supports controlled application and appearance of Interior Topcoat 578 on interior surfaces of yachts where high resistance and long-term durability are required.
• Spray booths and professional paint shops: helps adjust viscosity to environmental conditions and equipment settings for consistent spray patterns.

Use is restricted to professional applicators familiar with two-component polyurethane coating systems.

FAQ – ALEXSEAL Interior Topcoat 578 Reducer

1. Is this reducer suitable for other paint systems?

   The documentation specifies its use in combination with ALEXSEAL Interior Topcoat 578. For other systems: Consultar ficha técnica del fabricante.

2. When should I choose R6068 Interior Topcoat Reducer Slow instead of R6062?

   The technical sheet lists both options but does not define selection criteria. Consultar ficha técnica del fabricante.

3. What is the maximum reducer percentage I can add for spraying?

   For spray application of Interior Topcoat 578, 20 – 30 % by volume of R6062 or R6068 is specified, based on the total volume of base color and converter.

4. What reducer percentage is recommended for brushing or rolling?

   For brush and roller application of Interior Topcoat 578, 10 – 15 % by volume of R6062 Interior Topcoat Reducer is specified.

5. Does the reducer affect the coverage of Interior Topcoat 578?

   Coverage figures provided for Interior Topcoat 578 are calculated for base and converter; the reducer is added as a percentage of that total. No specific change in coverage is detailed.

6. Can I use the reducer for exterior applications?

   The associated Interior Topcoat 578 system is recommended for interior applications only.

7. Do I need to filter the mixture after adding the reducer?

   Yes. The technical sheet states that mixed material must be filtered before application.

8. What ambient conditions are recommended when using the reducer with Interior Topcoat 578?

   The optimal application environment for the mixed coating is 15 °C (60 °F) / 40 % RH up to 30 °C (85 °F) / 80 % RH, with minimum application temperature 3 °C above dew point.

Section 14 – Transport information

The following transport data are provided for ALEXSEAL N1221-Interior Topcoat 578 (paint system):

• UN number / ID number: UN 1263
• UN proper shipping name: PAINT
• Transport hazard class: Class 3 (flammable liquids) for ADR, IMDG and IATA
• Packing group: III
• ADR classification code: F1
• ADR hazard identification number: 30
• ADR tunnel restriction code: (D/E)
• IMDG EmS Code: F-E, S-E
• IATA packing instructions: 366 (cargo aircraft), 355 (passenger aircraft), Y344 (limited quantities)
• Environmental hazards: ADR – environmentally hazardous: yes; IMDG – marine pollutant: yes

Transport classifications may vary depending on packaging, transport mode and regional regulations. For the specific reducer product: Consultar ficha técnica del fabricante.

Section 8 – Personal protective measures

The safety data sheet for ALEXSEAL N1221-Interior Topcoat 578 recommends the following exposure controls and personal protective equipment during handling and application of the system:

• Engineering controls: Provide adequate ventilation using local exhaust and general extraction. If aerosol and solvent vapour concentrations cannot be maintained below occupational exposure limits, suitable 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. For short-term contact, recommended materials include nitrile rubber or neoprene with material thickness > 0.4 mm and breakthrough time > 480 minutes.
• Skin and body protection: Depending on the probability of dangerous or explosive atmospheres, wear appropriate protective clothing.
• Respiratory protection: If solvent concentration exceeds air limit values, use an approved breathing apparatus (half mask with cartridge or air-fed). During work inside spray booths, operators should wear compressed air-fed respirators until particulate and vapour concentrations fall below exposure limits.
• General protective measures: Do not eat, drink or smoke during work. Avoid contact with skin, eyes and clothing and avoid inhalation of sanding dust, particulates and spray mist.

For PPE requirements specific to INTERIOR TOPCOAT 578 REDUCER: Consultar ficha técnica del fabricante.

*Contenido generado por IA