Interlux Brightside Polyurethane Fire Red 4248 Quart INT-4248-QT

Interlux Brightside Polyurethane Fire Red 4248, Quart

Interlux Brightside Fire Red 4248 is a premium one-part polyurethane topside paint for marine surfaces above the waterline. Its high-gloss, self-leveling formula flows out smooth when brushed or rolled in thin coats, delivering a near-sprayed look with good colour retention, stain resistance and abrasion resistance.

Compatible Applications

• Hull topsides above the true waterline
• Cabin sides, deck structures and trim
• Boot stripes and accent areas
• Properly prepared fiberglass and GRP
• Properly prepared wood, steel and aluminum

For use above the waterline only. Follow the current Interlux technical data sheet for surface preparation and priming.

Part Details

• SKU: INT-4248-QT
• Manufacturer reference: Y4248/QT
• Catalog reference: 4248Q
• UPC: 081948442480
• Brand: Interlux
• Product type: One-part polyurethane topside paint
• Colour: Fire Red (4248 / Y4248)
• Finish: High gloss
• Size: 1 US quart / 946 mL
• Volume solids: Approximately 45%

Key Features

• Self-leveling formula for a smooth, high-gloss finish
• Good colour retention, stain resistance and abrasion resistance
• Brush, roller or spray application
• Bold red ideal for boot stripes and accents

Drying and Recoating

• Touch dry at 73F / 23C: Approximately 2 hours
• Recoat at 73F / 23C: Approximately 12 hours

Sand between coats. Drying time varies with temperature and application conditions.

Application Notes

Apply several thin, even coats rather than one heavy coat, over properly prepared compatible substrates and primers. Interlux Pre-Kote is commonly used as an undercoat, and 333 Brushing Liquid may be used where specified for brushing or rolling.

Technical FAQ

Can Brightside be used below the waterline?
No. It is designed for use above the true waterline only.

Is this a one-part paint?
Yes. It is a one-part polyurethane, so no curing agent is needed.

When should the finish be recoated?
Recoat when the existing finish becomes faded, chalked, scratched, worn or damaged.

Do I need to sand between coats?
Yes. Interlux specifies sanding between coats for adhesion and gloss.

Parts Desk Insights

Best use case: Adding a bold, high-gloss red to boot stripes, trim and accent areas, or refreshing topsides with a one-part system that is easy to apply.

Most common mistake: Applying heavy coats. Brightside self-levels best in thin coats, and skipping cleaning, sanding or surface preparation reduces adhesion and gloss.

Sizing and fitment guidance: This listing is 1 US quart. A quart is often enough for boot stripes and accents, while larger topside areas need more material once coat count is factored in. If you are matching an existing finish, confirm colour code 4248 before ordering.