Interlux Y30/QT Seam Compound Brown Below Waterline Wood Boat Quart

Interlux Seam Compound Brown (Y30/QT) is a proven, flexible seam compound formulated specifically for wooden boat construction and repair. Designed for use below the waterline, it fills seams in wood boat bottoms and keel joints that are subject to flexing, keeping water out while accommodating the natural movement of the hull.

Once applied and immersed, this compound remains durable and flexible, effectively absorbing the expansion and contraction of planks through seasonal and temperature changes. Its high adhesion properties ensure a reliable bond when used over properly primed surfaces.

Key Features:

• Formulated for below-the-waterline seams on wood boat bottoms and keel joints
• Remains durable and flexible after immersion to handle plank expansion and contraction
• Highly adhesive over properly primed surfaces
• Easy application by putty knife
• Color: Brown | Finish: Matte
• Specific Gravity: 1.848
• Volume Solids: 85%
• VOC: 380 g/L
• Dry to Touch: 2 hours @ 73°F
• Dry to Overcoat with Bottom Paint: 36 hours @ 73°F
• Sold as a quart (MPN: Y30/QT)

For seams located above the waterline, Interlux recommends Seam Compound #31 in White. This compound is a trusted solution for traditional wooden boat maintenance and repair.