GluBoost Fill n’ Finish Thin Formula – Self-Leveling, Flexible, Clear Wood Filler for Cracks, Dings, and Repairs – Interior Pore and Wood Grain Filler for Finishing and Repair – 2 oz Solution

Fill n’ Finish Thin Formula: The Clear, Flexible Solution for Precision Wood Finishing. Designed for high-detail work, Fill n’ Finish Thin Formula is a water-clear, flexible grain and pore sealer that penetrates deeply and levels on its own. This self-leveling, non-brittle formula dries smooth and virtually invisible, making it ideal for dense, less porous woods like ebony, maple, koa, and rosewood. Use it as a base coat during drop fills, or apply as a final topcoat over Fill n’ Finish Pro Formula to complete your repair and finishing builds. It reliably fills fine gaps, hairline cracks, and tight wood pores with fewer coats, saving you time while delivering a flawless surface ready for finishing. Apply with precision using included tips—no brush needed for most applications. Includes whip tips and extender nozzles for pinpoint drop filling and edge control. The formula is slow-drying by design, giving you long open time for perfect application—simply pair with GluDry to accelerate curing. Compatible with all common wood finishes. Use confidently with nitro, lacquer, poly, urethane, and water-based finishes. You can shoot lacquer directly over cured Fill n’ Finish Thin for completely invisible results and zero witness lines. Always fresh, easy to apply, and engineered for professional results.

• Precision Wood Grain Filler for Hardwoods: Fill n’ Finish Thin is a water-clear, flexible grain filler designed for less porous woods like ebony, maple, koa, and rosewood. Ideal for fine finishing, inlay work, and marquetry.
• Flexible Topcoat or Base Layer: Use as a base coat or a flexible, self-leveling topcoat over Fill n’ Finish Pro Formula for seamless repair builds with minimal witness lines.
• Interior Wood Filler That Levels Smoothly: This non-brittle wood gap filler fills cracks, dings, and pores while requiring fewer coats. Ideal for precision repairs where results matter.
• Compatible with All Finishes: Works with nitro, lacquer, poly, urethane, and water-based finishes—lacquer can be sprayed directly over cured layers for invisible results.
• Clear Wood Filler with Pinpoint Accuracy: Applies easily with included whip tips—no brush required. Great for wick-ins and detail work, including as a wood filler for stripped screw holes. Use with GluDry for proper curing.