Cyanoacrylate




Cyanoacrylate

Cyanoacrylate will be referred to as CA.

Kite Squid does not use any product with the word “Super” or “Krazy” on the package, though CA’s are generically called “Super Glue” the “Super” types are usually anything but “Super” and therefore are unacceptable for my purposes. CA’s need to be used quickly after manufacture as the catalyst for CA is water. There is always water vapor in the air we breathe and some of that water was on the interior surface and in the air in the container before the CA was put in, so it starts to set the day it is manufactured.

That said, Kite Squid recommends you buy your CA in small containers and from a high volume dealer (i.e. Kite Studio) and to use it up quickly. You may be able to extend the shelf life of your CA by placing it in the freezer. This will turn any water in the continer into ice and should stop it’t catalyatic action with the CA.

To get CA to set faster you may want to exhale on one or more of the parts to be joined to add some water to it. This may be very inportant if your current weather has low humidity.

Microballoons may be used to make a fillet in CA or as an accelerator due to their very high surface area for volume.

From Bob Smith Industries, a manufacturer of CA’s, on the subject of “How to use Cyanoacrylates”

Heat and moisture will decrease the shelf life of CA’s. Unopened bottles can be stored in a freezer or refrigerator, but allow them to reach room temperature before using. Keep your bottles in a cool place that won’t be exposed to direct sunlight and store away from bottles of accelerators. Due to the freshness of our CA’s, their shelf life is guaranteed for 24 months.

For the initial opening of the top, loosen and retighten the top first to relieve internal pressure, then hold the bottle against a near vertical surface and cut off the top 1/32″ with a knife or razor blade without squeezing the bottle. To prevent clogging, do not let the tip of the nozzle touch a surface that has been sprayed with INSTA-SET™. Before replacing the colored cap, set the bottle down hard to knock the remaining CA back into the bottle before squeezing it in an upright position to blow air through the nozzle and then wipe the tip clean with a lint free paper like a coffee filter.

With all CA’s, the closer the parts fit together, the stronger the bond. Always hold the bonding surfaces together as tightly as possible. Any rough spots on the mating surfaces should be smoothed out. Although CA’s will hold objects together with considerable strength within seconds, the full strength of the bond is not reached for several hours. Allow for this before subjecting parts to maximum stress. Also, CA’s are generally a little less brittle and have higher strength when they are allowed to cure on their own.

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