What is MAX COR CF SPRAY and why choose it?
MAX COR CF SPRAY is a high-solids, two-component, chromate-free epoxy polyamine primer in an aerosol format, designed for aluminum and steel surfaces above the waterline. Based on Controlled Fusion (CF) technology, it delivers excellent anti-corrosive performance, chemical and solvent resistance, and outstanding adhesion without the need for sanding between coats. The innovative 2K aerosol system allows professional-quality spot repairs and coating of hard-to-reach areas where a fast, effective solution is required.
Main features
- 2K epoxy technology in an aerosol: Two-component epoxy polyamine system (code S4010) dispersed in a pressurized can for easy, controlled application.
- Chromate-free anti-corrosive primer: Specifically formulated to protect aluminum and steel substrates from corrosion.
- Controlled Fusion (CF) technology:
- Extends recoat windows.
- Eliminates sanding prior to applying subsequent coats within the recoat interval.
- Ensures a tightly fused intercoat layer and excellent substrate adhesion.
- Reduces the need for high-hazard chemicals.
- High performance vs. standard aerosols: Significantly higher performance and film quality than conventional 1K spray cans.
- Fast application system: Two smooth wet coats applied 15 minutes apart; substrate may remain visible through the dry film.
- Above-waterline protection: Formulated for use above the waterline only.
- Colour: Green.
Technical specifications
Product and packaging
- Product type: Epoxy polyamine primer in a 2-part aerosol (S4010).
- Colour: Green.
- Packaging: Two-part 250 ml aerosol can.
Film build and coverage
- Theoretical coverage (mixed base, converter and propellants)*:
- Approximately 492 ft²/gal (12 m²/L) at 0.8 mil (20 µm) dry film thickness.
- Approximately 779 – 1312 ft²/gal (19 – 32 m²/L) at recommended dry film thickness.
- Recommended wet film thickness per coat: 1.3 – 2.0 mils (33 – 55 µm).
- Recommended dry film thickness per coat: 0.3 – 0.5 mils (7.5 – 12.5 µm).
- Number of coats: 2 smooth wet coats, 15 minutes apart.
- *Coverage values are theoretical at 100% transfer efficiency. Actual coverage will vary with equipment, technique, part size and environment.
Recoatability over Hullgard Extra Primer
When overcoating Max Cor CF with Hullgard Extra Primer, strictly observe the following overcoating windows:
- 15°C / 59°F: Minimum 17 hours – Maximum 72 hours.
- 25°C / 77°F: Minimum 17 hours – Maximum 72 hours.
- 35°C / 95°F: Minimum 7 hours – Maximum 72 hours.
If the maximum overcoating interval is exceeded, the Max Cor CF layer must be completely removed and reapplied. If it is likely the maximum interval will be exceeded, apply Hullgard Extra to allow up to 6 months overcoating without sanding.
VOC data
- VOC content (mixed S4010 system, reference R4330 : R3330): 5.48 lbs/gal (656 g/L).
Aerosol operation and pot life
- Activation:
- Shake the aerosol thoroughly for 2 minutes before use.
- Remove the red push button from the cap and place it on the bottom of the can. Place the aerosol horizontally with the cap pointing downwards.
- Activate by applying even vertical pressure until a click is heard. Press only once.
- Write date and time of activation on the label.
- Shake again thoroughly for 2 minutes to mix both components.
- Perform a trial spray.
- After use, invert the can and spray until only propellant exits to clear the valve.
- Anticipated pot life at 25°C / 77°F and 50% RH: 2 hours in the activated can (shorter at higher temperatures, longer at lower).
Substrate preparation
- General: The surface must be clean, dry and free of dirt, grease and oil. Use suitable surface cleaners as specified by the manufacturer.
- Aluminum: Sandblast or grind to 100% clean silver color.
- Steel: Sandblast or grind to SSPC-SP10 or Sa 2½ standard.
Application conditions
- Temperature of substrate: Do not apply to surfaces warmer than 40°C (105°F) or colder than 15°C (59°F).
- Curing: Do not attempt to cure the product below 15°C (59°F).
Applications and use cases
- Metal priming above the waterline on yachts and marine structures where corrosion protection and adhesion for subsequent coats are required.
- Spot repairs on previously coated aluminum or steel areas where access for conventional spray equipment is limited.
- Hard-to-reach areas such as tight corners, complex geometries and localized damage where a compact aerosol solution is advantageous.
- Professional marine maintenance where extended recoat times and no-sand recoat capability simplify workflows and reduce downtime.
FAQ – MAX COR CF SPRAY
1. On which substrates can I use MAX COR CF SPRAY?
It is designed as an anti-corrosive epoxy primer for aluminum and steel surfaces prepared by blasting or grinding to the specified cleanliness and profile. Use above the waterline only.
2. Do I need to sand between coats of MAX COR CF?
No sanding is required between coats if you stay within the specified overcoating intervals, thanks to CF (Controlled Fusion) technology.
3. How many coats should I apply?
Apply two smooth wet coats, 15 minutes apart, without exceeding the recommended dry film thickness.
4. What happens if I exceed the maximum overcoating time?
If the maximum overcoating interval is exceeded, the Max Cor CF layer must be fully removed and reapplied. As an alternative, apply Hullgard Extra within the interval to extend overcoating up to 6 months without sanding.
5. Can I thin or reduce the aerosol?
No. The reducer is specified as “DO NOT THIN/REDUCE”. Use the product as supplied in the can.
6. What pot life do I have after activating the can?
At 25°C (77°F) and 50% relative humidity, the anticipated pot life is about 2 hours. Higher temperatures reduce pot life; lower temperatures extend it.
7. Is MAX COR CF SPRAY suitable for underwater areas?
No. The product is for use above the waterline only.
8. How should I dispose of an empty aerosol?
Ensure the aerosol is completely empty (spray until only propellant exits) and dispose of the container in accordance with local, regional and national regulations.
9. What are the recommended surface cleanliness standards?
For steel, blast or grind to SSPC-SP10 or Sa 2½. For aluminum, blast or grind to 100% clean, bright metal.
10. Can I use this product in low temperatures?
Do not apply or attempt to cure the coating below 15°C (59°F).
Section 14 – Transport information
The following transport information refers to the aerosolized form of MAX COR CF (S4010):
- UN number: UN1950.
- Proper shipping name: AEROSOL.
- Transport hazard class: 2.1 (flammable gas).
- Packing group: Not applicable for class 2 aerosols.
- Transport modes: Classified as AEROSOL under DOT (domestic surface) and IMDG/IMO (ocean transport).
- Environmental hazards: Consultar ficha técnica del fabricante.
- Special precautions: Transport in closed, upright and secure containers and ensure personnel know procedures in case of accident or spillage.
Section 8 – Individual protection measures
MAX COR CF systems (including MAX COR CF SPRAY) are classified as highly flammable and can cause skin and eye irritation, respiratory sensitization and other health effects. Full personal protective equipment is highly recommended.
Recommended PPE during use
- Respiratory protection: Use only with adequate ventilation. If exposure limits may be exceeded, wear a respirator conforming to EN140 with type A/P2 filter or better. During dry sanding, flame cutting or welding of the dry film, use suitable respiratory protection if local exhaust ventilation is not sufficient.
- Eye and face protection: Wear chemical splash goggles or equivalent eye protection that complies with an approved standard to prevent exposure to mists, vapors or splashes.
- Hand protection:
- For prolonged or frequently repeated contact: chemical-resistant gloves of protection class 6 (breakthrough time >480 minutes according to EN374). Recommended materials: Viton or nitrile, thickness ≥ 0.38 mm.
- For brief contact: gloves of protection class 2 or higher (breakthrough time >30 minutes according to EN374). Recommended: nitrile gloves, thickness ≥ 0.12 mm.
- Replace gloves regularly and whenever damage or degradation is observed.
- Body protection: Select protective clothing based on the specific task and risk assessment. When there is a risk of ignition from static electricity, wear anti-static protective clothing (including overalls, boots and gloves) conforming to EN 1149.
- Other skin protection: Use appropriate protective footwear and additional skin protection measures as needed, approved by a specialist.
Hygiene and workplace controls
- Use process enclosures and local exhaust ventilation to keep airborne concentrations below regulatory limits and below the lower explosive limit.
- Wash hands, forearms and face thoroughly after handling, before eating, drinking or smoking and at the end of the work shift.
- Do not eat, drink or smoke in areas where the product is handled or stored.
- Remove contaminated clothing and protective equipment before entering eating areas; wash contaminated clothing before reuse.
- Ensure eyewash stations and safety showers are located close to the workstation.
*Contenido generado por IA
