Zap 2ml Super Glue Pen - Medium viscosity Cyanoacrylate adhesive. ZAP-A-GAP CA+ Is the best selling instant glue in the world. The ability to bond virtually anything to anything with consistency unequalled by any other brand makes it the favorite adhesive across many varied disciplines. Widely used throughout the hobby industry, it is the absolute best and most consistent performing glue for model building and crafting.  Helpful Hints: A little goes a long way More glue doesn’t always mean a stronger joint. Only apply enough glue to evenly coat the area to be bonded when the parts are joined. Many times glue needs to be applied only to one part. Working or positioning time will vary depending on the material. Even though ZAP-A-GAP CA+ is a gap filling formula, some of it will wick into porous materials. For porous products you may have to apply more glue to get the strongest bond, it would be best to try bonding some test pieces to determine the proper amount. For modeling applications where a small fillet is desirable, bond the parts and let the glue set, then go back and create the fillet, use kicker to immediately set the glue. For critical applications test sample joints for the designed strength requirements.