What is the brush for?

It lets you paint glue onto small areas and cracks instead of squeezing a drop. That gives more control on fine repairs and reduces runs.

What surfaces does it bond?

It is a cyanoacrylate glue for non-porous materials such as plastic, metal, ceramic and rubber. It is not the right choice for fabric, foam or surfaces that need a flexible, gap-filling bond.

Is it stronger than regular Loctite Super Glue?

The adhesive is the same type; the difference is the brush applicator. Expect a similar fast, rigid bond, with better placement on small repairs.

Can it fill gaps or repair a broken hinge?

No. Super glue needs close-fitting parts and does not fill gaps. For joints that carry load or flex, use an epoxy or a dedicated plastic repair product.

How should I store it?

Keep the cap sealed and store it upright in a cool, dry place. Cyanoacrylate sets when it meets moisture in the air, so a tight cap keeps the brush usable longer.