GluBoost Fill n’ Finish Pro Formula – Self-Leveling Wood Filler for Dings & Cracks, 2 oz

Product overview

GluBoost Fill n’ Finish Pro Formula is the go-to interior wood filler for precise repairs and refined finishes. This water-clear, self-leveling solution remains flexible over time, reducing the risk of cracking. It delivers smooth, durable results on a range of hardwoods, helping you fill gaps, pores, and small surface flaws with confidence.

Designed for professionals and serious DIYers, the Pro Formula can be used as a buildable base coat or a flexible topcoat over your wood grain filler for a seamless look. The kit includes a clog-free pin-cap or whip tips for brush-free application, allowing you to control coverage without brush marks. Its longer open time gives you ample working time for detail work, while GluDry can accelerate cure when needed. When paired with GluBoost Accelerator, time-to-finish can improve without sacrificing control.

Why choose GluBoost Fill n’ Finish Pro Formula

• Water-clear, flexible filler that won’t crack or shrink, ideal for high-clarity finishes.
• Self-leveling performance reduces witness lines and reveals a smooth top surface.
• Interior-use only; optimized for indoor projects on hardwoods like ebony, maple, koa, and rosewood.
• Dual-use: serves as a buildable base coat or a flexible topcoat over a grain filler.

Ideal uses and applications

• Marquetry, inlays, and fine furniture repair where precision matters.
• Repairing stripped screw holes, hairline cracks, small dents, and tight grain pores.
• Guitar finishing and other crafted pieces where a transparent, register-friendly fill is desired.
• Pairs with accelerator for faster curing while maintaining control and surface integrity.

The Pro Formula is paintable, shrink-resistant, and designed for a safer, lower-irritation workspace once cured. It’s ideal for professional finishers who value predictable results and a clean, finished look on interior projects. Always test on a small area first to ensure compatibility with your chosen topcoat.