Karnak 404 Corrosion Proof Base Coat Light Gray 5 gal
Regular price $191.00The Karnak 404 Corrosion Proof Base Coat Light Gray 5 gal is a specialty cleaners & primers for jobs that require Karnak model/MPN 404-5 in the 5G sell unit. 404 Corrosion Proof base coat is a self–priming, modified acrylic, coating that can encapsulate existing rust on properly prepared metal and inhibits the development of new rust on metal surfaces.
Key Specs
- Brand: Karnak
- Model / MPN: 404-5
- SKU: KAR4045
- Sell unit: 5G
- Product type: Specialty Cleaners & Primers
- Size / color: 5 gal
- Category: Commercial Roofing | Commercial Roofing/Cleaners & Primers | Commercial Roofing/Cleaners & Primers/Specialty Cleaners & Primers
- Coverage / unit: 5 gal per listed unit
Key Features
- 404 Corrosion Proof is recommended for use as an elastomeric coating applied to both clean and properly prepared but marginally rusty steel, and imparts excellent corrosion resistance, adhesion, and low temperature flexibility.
- Apply with a 3/4" – 1-1/4” nap roller or soft roof brush.
Coverage & How Much You Need
This item is listed as 5 gal per listed unit. Use the project takeoff, manufacturer installation instructions, and expected waste/overlap to confirm the order quantity.
Compatibility / Fitment
Use this item only when the brand, model/MPN, size/color, sell unit, and system type match the project specification. Do not substitute it for a different specialty cleaners & primers, pack size, color, membrane/system family, or installation condition without checking the manufacturer instructions.
FAQs
What exactly am I ordering?
Karnak 404 Corrosion Proof Base Coat Light Gray 5 gal, sold as 5G, with SKU KAR4045 and manufacturer model/MPN 404-5.
What model or part number should I match?
Match model/MPN 404-5 and confirm the brand is Karnak. If the job spec lists a different model, size, color, or system family, hold for review.
What unit is the price based on?
This listing is built around the 5G sell unit. Confirm the unit before comparing price, quantity, or coverage.
How do I estimate quantity?
Use 5 gal per listed unit, then add waste or overlap per the manufacturer instructions and the project design.
What should be checked before purchase?
Confirm the model/MPN, sell unit, size/color, jobsite condition, compatible system components, and any manufacturer installation limits before approving the order.
Roofing and exterior-envelope work can involve fall hazards, weather exposure, fumes, adhesives, and system-specific installation requirements; follow the manufacturer instructions, OSHA-safe work practices, and local code or use a qualified contractor.
Product Expert Notes
Choose this item when Karnak model/MPN 404-5, SKU KAR4045, and the 5G sell unit match the project requirement. It is best treated as an exact-match material selection, not a generic substitute.
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