Monday, August 21, 2017

Bishop Hobbies

Scale Model Builder

Archive for the ‘Gluing Stuff’ Category

Gluing Stuff

Posted by Paul On May - 18 - 2009

First a word about super glue or more accurately cyanoacrylate. I will refer here to it as CA for short. Cyanoacrylate is a tenacious adhesive, particularly when used to bond non-porous materials or those that contain minute traces of water. It is also very good at bonding body tissue, and while this can be a bothersome (or even dangerous) side effect during everyday use, it has been exploited for the benefit of suture-less surgery.

Cyanoacrylate glue has a low shearing strength, which has also led to its use as a temporary adhesive in cases where the piece can easily be sheared off at a later time. Common examples include mounting a workpiece to a sacrificial glue block on a lathe and also tightening pins and bolts.

Cyanoacrylates are often used to assemble prototype electronics (see wire wrap), flying model aircraft, and as retention dressings for nuts and bolts. Their effectiveness in bonding metal and general versatility have also made them popular amongst modeling and miniatures hobbyists. They are used to re-harden the boxes and shanks of ballerinas’ pointe shoes as well.

When added to baking soda (Sodium bicarbonate) Cyanoacrylate glue forms a hard, lightweight filler/adhesive (baking soda is first used to fill a gap then the adhesive is dripped into the baking soda). This works well with porous materials that the glue doesn’t work well with alone. This method is sometimes used by aircraft modelers to assemble or repair polystyrene foam parts.

One non-adhesive use for cyanoacrylate is as a forensic tool.[1] Fumes from warmed CA can develop latent fingerprints on smooth surfaces like glass, plastic, etc. The invisible fingerprint residues react with the CA fumes and atmospheric moisture to form a white polymer (polycyanoacrylate) on the fingerprint ridges and can then be recorded. The developed fingerprints are, on most surfaces (except on white plastic or similar), visible to the naked eye. Non-visible or poorly visible prints can be furthermore enhanced by applying a luminescent or non-luminescent stain. This technique was shown in the films Beverly Hills Cop II and National Treasure, and frequently features in the television series CSI: Crime Scene Investigation and its spin-offs. (1)

Here you can see the types of glue I use. Left to right:

Accelerator for CA – this causes the super glue to harden quickly – very handy stuff. A bottle lasts a long time.

ca-accelerator

 

 

 

 

 

 

 

 

 

 

 Model Master liquid cement – this comes with a handy tube applicator which is covered by the tapered cap here.

model-master-liquid-cement

 

 

 

 

 

 

 

 

 

 

 

 

 

Tamiya extra thin cement – this is handy due to its nice capillary action. Just apply to a joint and the thin glue will wick nicly.

tamiya-extra-thin-glue1

 

 

 

 

 

 

 

 

 

 

 

 

 

Zap brand thin CA – this is thin super glue that wicks nicely too. Also handy for gluing your fingers together.

zapcathin

 

 

 

 

 

 

 

 

 

 

 

 

 

Zap brand thick CA – good for joints that won’t wick and for filling in gaps.

zap-a-gap

 

 

 

 

 

 

 

 

 

 

 

Aleene’s Tacky Glue – like white glue. Dries clear and is good to parts than don’t need that extra strong bond – or for tacking a part down before you apply CA. It cleans up with water and forms a flexable bond.

aleenes-tackey-glue

 

 

 

 

 

 

 

 

 

 

 

 

 

You can also use Krystal Klear by Microscale:

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

1/20/2017 I've gotten tired of getting the super glue all over everything.  So I made what I call my CA glue center.  I used a piece of brass tubing, soldered a bottom plate to it so it's water tight, and used that for the debonder station.  I used some 2 oz paint mixing cups and epoxied everyting to the wood base.  The CA stays in a nice liquid form and this really cuts down the mess.  I used the debonder tube to clean off the glue stick periodically.  The pictures are pretty much self explanatory.

_DSC3557

_DSC3556

 

 

 

 

 

 

 

 

(1) Wikipedia – The free encyclopedia.