GluBoost Fill n' Finish Ultra Thin 2 oz

What does “self-levelling” mean?

This formula naturally flows and settles into an even layer after application. It penetrates and smooths fine imperfections, helping you achieve a cleaner surface with minimal buildup.

What sets GluBoost Ultra Thin apart from other CA glues?

Unlike standard ultra-thin CA glues that cure quickly and become brittle, this formula is slow-curing and flexible. It gives you more working time and creates a stronger, more durable result. It also dries water-clear, helping repairs and finishes blend seamlessly into the surrounding material.

How do I use it for best results?

Apply directly to the surface and allow it to wick into the material. Because it is a slow-curing formula, GluDry accelerator must be used with all Fill n’ Finish products to ensure proper curing.

For best results, use Ultra Thin to seal and penetrate first, then build up your finish using Fill n’ Finish Thin or Pro Formula. Suggested steps: 

• Prepare your blank, to around 600 grit. 
• Apply Fill n’ Finish Pro Formula using a shop towel, then spray Non Blushing GluDry accelerator from 10 to 12 inches (25 - 30 cm) away. Repeat.
• Apply Fill n’ Finish Thin, spray with Non Blushing GluDry accelerator. Repeat.
• Add more coats of Fill n’ Finish Thin, if desired. Use 0000 steel wool over area to smooth, then wet sand with Micro Mesh and polish. 

Where does it work best?

Use it as a sealer for pen blank ends after milling. 

• Wood blanks: Wicks into end grain to seal against moisture and debris—especially helpful when wet sanding CA finishes.
• Acrylic and resin blanks: Sealing the ends helps prevent debris from getting between the tube and the material. On transparent blanks, trapped debris becomes highly visible, so sealing is critical.

Can it stabilize wood while turning?

Yes. Ultra Thin works as a stabilizer when turning soft woods or blanks with embedded materials (like coffee beans). As you approach final shape, stop and saturate the blank. Repeat as needed to strengthen the material and reduce the risk of blowouts.

What else should I know?

• Do not refrigerate open bottles. Doing so willcreate condensation that will accelerate product curinginside the bottle. 
• Never touch the top of the Fill n’ Finish to any area already sprayed with Non Blushing GluDry accelerator.

Price per bottle in Canadian dollars.