Spectral UNDER 395 Epoxy Primer - White
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Product Information
Full details
The Spectral UNDER 395 Epoxy Primer is an essential tool for professional automotive refinishers and industrial hobbyists who require a high-performance, durable base for their paint projects. This aerosol primer excels at providing superior adhesion and long-term corrosion resistance on metal and various industrial substrates. While it offers unmatched convenience for spot repairs and surface preparation, users should note that as an aerosol-based epoxy, it is best suited for small to medium-sized areas rather than full-vehicle coverage, where a spray gun system might be more cost-effective.
All features
| Colour | White |
|---|---|
| Model Part Number | N90409 |
| Brand | Spectral |
Extended Product Information
FAQs
Can I use this primer on plastic parts?
This epoxy primer is primarily designed for metal and industrial substrates; check for a plastic adhesion promoter if you intend to use it on non-metal surfaces.
How long does it take to dry?
Drying times vary by temperature and humidity, but it is generally dry to the touch within 15-30 minutes and ready for topcoating after a few hours.
Do I need to sand the primer before painting?
For best results, a light sanding with fine-grit abrasive paper is recommended to ensure a perfectly smooth surface for the basecoat.
Is this primer waterproof once cured?
Yes, once fully cured, the epoxy formula provides a moisture-resistant seal that prevents rust formation.
What should I wear during application?
Always wear an organic vapor respirator, nitrile gloves, and safety goggles when spraying to prevent inhalation or skin contact.
Troubleshooting
Nozzle clogging during use
Clear the nozzle by removing it and soaking it in solvent, or ensure the tip is cleared by spraying in an inverted position after each session.
Primer surface appears rough or 'sandy'
This is often caused by spraying from too far away; reduce the distance to 15-20 cm and ensure you are using consistent, overlapping passes.
Poor adhesion to the surface
Ensure the surface was sanded with the appropriate grit and thoroughly cleaned with a degreaser prior to application.
Pros and Cons
Pros
- Excellent rust and corrosion inhibition
- Easy application without requiring a paint gun or compressor
- Fast drying time for improved workflow efficiency
- High-quality spray pattern similar to professional equipment
Cons
- Higher cost per ounce compared to bulk paint systems
- Not intended for large surface area coverage
- Requires proper ventilation due to solvent content
Setup, Compatibility & Care
To achieve the best results, ensure the ambient temperature is between 15°C and 25°C. Clean the substrate using an automotive wax and grease remover before priming to remove all contaminants. Shake the canister vigorously for at least two minutes after hearing the mixing ball to ensure the epoxy components are properly blended.
Maintain a distance of 15-20 cm from the surface while spraying. After use, invert the canister and spray for two seconds to clear the nozzle, which prevents the fast-acting epoxy from clogging the tip. Store the canister in a cool, dry place away from direct sunlight to preserve the shelf life of the chemical components.