What is ALEXSEAL FAST SPOT PRIMER 414 and why choose it?
ALEXSEAL FAST SPOT PRIMER 414 is an acrylic/epoxy-based, fast-drying spot-in primer designed for quick repairs and touch-ups on already primed yacht and industrial surfaces. Developed for professional use, it offers rapid dry-to-sand properties, reliable sealing of breakthrough areas and compatibility with a wide range of ALEXSEAL primers and topcoats.
With a solids content of 33% (by volume, catalyzed without reduction) and excellent spray characteristics, FAST SPOT PRIMER 414 helps achieve thin, smooth film builds in a short time, improving efficiency in repair and refit work.
Main features
- Fast drying and sandable: Dry to sand in as little as 1 hour at 25–30 °C (77–85 °F), enabling rapid repair cycles.
- Spot-in, overcoating primer: Designed to seal small breakthrough areas on previously primed or coated substrates.
- Acrylic/epoxy technology: Combines good adhesion and chemical resistance on compatible systems.
- Spray-friendly viscosity: Optimized for conventional and HVLP spray equipment with excellent atomization.
- Controlled film build: Recommended dry film thickness (DFT) of 13–25 µm (0.5–1.0 mil) with a maximum of 38 µm (1.5 mil) DFT in two coats.
- Available colors: Sand or Gray base, mixed with a clear converter.
- Professional repair solution: Intended for industrial serial painting and professional yacht finishing. Not for consumer use.
- Above-waterline use: Must not be used below the waterline and must not be applied directly to bare metal.
Technical specifications
- Product type: Acrylic/epoxy-based fast spot primer.
- Use: Industrial serial painting; professional repair and touch-up primer.
- Colors of mixture: Sand or Gray.
- Base materials: Sand or Gray base; clear converter.
- Volume solids (catalyzed, without reduction): 33%.
- Theoretical coverage (base + converter):
- Theoretical: 19 m²/L (72 m²/gal, 779 sq ft/gal) at 13–25 µm (0.5–1.0 mil) DFT.
- Practical, conventional air spray: 9 m²/L (34 m²/gal, 368 sq ft/gal) at 13–25 µm (0.5–1.0 mil) DFT.
- Practical, HVLP: 10 m²/L (40 m²/gal, 424 sq ft/gal) at 13–25 µm (0.5–1.0 mil) DFT.
- Recommended film thickness:
- Wet film thickness (WFT): 25–50 µm (1–2 mil) per coat.
- Dry film thickness (DFT): 13–25 µm (0.5–1.0 mil) for a two-coat application.
- Maximum during spray application: 2 coats totaling 75 µm (3 mil) WFT or 38 µm (1.5 mil) DFT.
- Mixing ratio (by volume):
- 1 part ALEXSEAL FAST SPOT PRIMER 414 Base (P414x / P4145 Sand, P4143 Gray).
- 1 part ALEXSEAL FAST SPOT PRIMER 414 Converter (C4147).
- 0–25% ALEXSEAL Epoxy Primer Reducer (R4042) relative to total base + converter.
- Example: 1 : 1 : 1/2 = 25% reduction for spray application.
- Allow a 15-minute induction time after mixing base and converter, then add reducer and mix again.
- Reducer range: 0–25% depending on application conditions; may be reduced up to 25% for a thin, smooth spot-primer application (not on bare metal).
- Viscosity (spray-ready range):
- Zahn #2: approx. 15–18 s.
- DIN 4 cup 4 mm: approx. 14–18 s.
- Recommended spray equipment:
- Gravity gun nozzle: 1.0–1.4 mm (0.040–0.050 in) – Conventional and HVLP.
- Siphon cup nozzle: 1.6 mm (0.060 in) – Conventional and HVLP.
- Pressure pot fluid nozzle: 1.0–1.3 mm (0.040–0.050 in) – Conventional and HVLP.
- Atomizing pressure: 3.0–5.0 bar (42–70 psi).
- Pot pressure: 0.7–1.5 bar (10–20 psi).
- Environmental application range: 15–30 °C (60–85 °F); 40–80% relative humidity.
- Dew point requirement: Minimum 3 °C (5.4 °F) above dew point during application.
- Drying and curing (approximate):
- Pot life (mixed): approx. 1 h at 15–20 °C (60–68 °F); 30 min at 25–30 °C (77–85 °F).
- Dust-free: 90 min (15 °C), 60 min (20 °C), 45 min (25 °C), 30 min (30 °C).
- Tape dry (without accelerator): 30 h (15 °C), 24 h (20 °C), 18 h (25 °C), 14 h (30 °C).
- Dry to sand: 2 h (15–20 °C), 1 h (25–30 °C).
- Fully cured: 11 days (15 °C), 9 days (20 °C), 7 days (25 °C), 5 days (30 °C).
- Recoat with FAST SPOT PRIMER 414: 30 min minimum at 15–20 °C, 15 min minimum at 25–30 °C; 12 h maximum.
- Overcoat with other ALEXSEAL products (202, 212, 302, 303, 328, 442, 501 and equivalents): 3 h minimum at 15–20 °C, 2 h minimum at 25–30 °C; 12 h maximum, sanding required after maximum time.
- Density: approx. 1.75 g/cm³ at 20 °C.
- Boiling range: approx. 120 °C.
- Flash point: 27 °C (ISO 13736).
- Explosion limits: 1–10% (v/v).
- Auto-ignition temperature: > 400 °C.
- Water solubility: Insoluble; immiscible with water.
- VOC content: 26.57%, 465 g/L (as supplied).
- Classification (CLP / GHS): Flammable liquid, Category 3 (H226); STOT SE 3, central nervous system (H336); Aquatic Chronic 3 (H412).
- Professional use only: Yes.
Substrate preparation and compatible systems
- Surface condition: Substrate must be clean, dry and free from dust, grease, oil and other contamination.
- Breakthrough spots: Urethane topcoats, epoxy primers, FRP and gel coat surfaces with localized breakthrough should be sanded with P220–P400 and spot-primed directly with FAST SPOT PRIMER 414.
- Refit and repair of old coatings: Existing coatings must exhibit good adhesion and chemical resistance, and must be cleaned and sanded with P220–P400. Perform a compatibility test if the condition of the old coating is questionable.
- Steel and aluminum: Must first be coated with ALEXSEAL Protective Primer 161 or ALEXSEAL Protective Primer (as specified). FAST SPOT PRIMER 414 must not be applied directly to bare metal.
- Below waterline: The product must not be used below the waterline.
Applications and use cases
Typical applications
- Spot priming on finished primed yacht hulls and superstructures (above the waterline).
- Repair of small breakthrough areas in ALEXSEAL epoxy primers and urethane topcoats.
- Touch-up work on FRP and gel coat surfaces following local sanding or damage repair.
- Industrial serial painting processes where fast, localized priming and quick sanding are required.
Process outline (summary)
- Clean the area thoroughly; remove contaminants such as salt, oil, grease and dust.
- Sand the affected area with P220–P400 until a smooth, keyed surface is obtained.
- Ensure steel and aluminum substrates have been previously primed with ALEXSEAL Protective Primer 161.
- Mix FAST SPOT PRIMER 414 base and converter 1:1 by volume, allow 15 minutes induction, then adjust viscosity with R4042 Reducer (0–25%).
- Apply 1–2 spray coats to 25–50 µm WFT per coat, observing recommended equipment and pressures.
- Allow to flash-off and dry; sand after the indicated “dry to sand” time based on temperature.
- Recoat with FAST SPOT PRIMER 414 or overcoat with compatible ALEXSEAL primers or topcoats within the specified recoat window.
FAQ – FAST SPOT PRIMER 414
1. Can FAST SPOT PRIMER 414 be applied directly to bare metal?
No. Steel and aluminum must first be primed with ALEXSEAL Protective Primer 161. FAST SPOT PRIMER 414 must not be applied directly to bare metal.
2. Is this product suitable for use below the waterline?
No. FAST SPOT PRIMER 414 must not be used below the waterline.
3. What is the recommended mixing ratio?
Mix 1 part FAST SPOT PRIMER 414 Base with 1 part Converter C4147 by volume, then add 0–25% ALEXSEAL Epoxy Primer Reducer R4042 as needed for spray application.
4. How long is the pot life after mixing?
Approximate pot life is 1 hour at 15–20 °C (60–68 °F) and 30 minutes at 25–30 °C (77–85 °F).
5. When can I sand the primer?
At 25–30 °C (77–85 °F), the coating is typically dry to sand after about 1 hour. At 15–20 °C (60–68 °F), allow approximately 2 hours.
6. How many coats are recommended?
Apply 1–2 spray coats. Maximum recommended film build in one application is 2 coats totaling 75 µm (3 mil) WFT or 38 µm (1.5 mil) DFT.
7. Can I add accelerator additives?
No. Accelerator additives must not be used with this product.
8. Which ALEXSEAL products can be applied over FAST SPOT PRIMER 414?
It can be overcoated with specified ALEXSEAL products including 202, 212, 302, 303, 328, 442 and 501 within the recommended overcoat window; sanding is required after the maximum time.
9. What is the ideal application temperature?
The ideal temperature during drying is around 25 °C (77 °F), with application conditions at least 3 °C (5.4 °F) above the dew point.
10. Is FAST SPOT PRIMER 414 classified as flammable?
Yes. It is classified as a flammable liquid, Category 3, with a flash point of 27 °C. Handle and store away from ignition sources.
Section 14 – Transport information
- UN number: UN 1263.
- UN proper shipping name: PAINT.
- Transport hazard class: Class 3 (Flammable liquids).
- Packing group: III.
- ADR details:
- Classification code: F1.
- Hazard identification number: 30.
- Tunnel restriction code: (D/E).
- Environmentally hazardous: no.
- Containers < 450 L may be exempt from certain ADR requirements (ADR 2.2.3.1.5).
- IMDG details:
- Marine pollutant: no.
- Packing group: III.
- EmS code: F-E, S-E.
- Receptacles < 450 L are not subject to some IMDG chapters 4.1, 5.2 and 6.1 (IMDG 2.3.2.5).
- IATA details:
- Cargo aircraft packing instruction: 366, PG III.
- Passenger aircraft packing instruction: 355, PG III.
- Limited Quantity packing instruction: Y344.
- Labels: Flammable Liquids.
- On-site transport precautions: Always transport in closed, upright, secure containers. Ensure personnel know the procedures in case of incident or spillage.
Section 8 – Individual protection measures
When handling ALEXSEAL FAST SPOT PRIMER 414, observe the following personal protective measures as indicated in the Safety Data Sheet:
- Ventilation: Provide adequate local exhaust and general ventilation. If concentrations of solvent vapours or spray mist exceed occupational exposure limits, use suitable respiratory protection.
- Eye and face protection: Wear safety goggles to protect against solvent and overspray splashes.
- Hand protection:
- Use chemical-resistant protective gloves compliant with EN 374.
- Recommended materials for splash contact: nitrile rubber or neoprene.
- Minimum thickness: > 0.4 mm; typical breakthrough time: > 480 minutes.
- Inspect gloves before use and replace immediately if damaged or at first signs of wear.
- Skin and body protection: Wear suitable antistatic protective clothing made from natural fibres (e.g. cotton) or heat-resistant synthetic fibres. Clean contaminated skin promptly and thoroughly.
- Respiratory protection:
- If solvent vapour concentration exceeds limit values, wear an approved half-mask respirator with appropriate combination cartridges or an air-fed system.
- During spraying in booths where ventilation may be insufficient, operators inside the booth should wear compressed air-fed respiratory protection until vapour and particulate levels fall below exposure limits.
- Dry grinding, torch cutting or welding on coated surfaces can generate hazardous dust or fumes; use wet methods where possible and appropriate respiratory protection.
- General hygiene measures:
- Do not eat, drink or smoke while working with the product.
- Avoid contact with skin, eyes and clothing; avoid inhalation of vapours, spray mist and sanding dust.
- Use skin protection creams and wash contaminated skin areas immediately.
Contenido generado por IA
