Friday, 15 July 2016
The Activator Cometh - more tales of superglue
The idea (bear with me here) is that superglue requires to be in a thin film to cure. A spot will stick together two glass microscope slides just about instantly, but any thicker mass of the stuff takes time to harden. This is the reason why I have spent so many frustrating hours attempting to hold head grafts or arm grafts still enough, for long enough, to achieve neat joins.
Well, I read about the various activator products, and decided to invest in a couple of bottles of the one illustrated at the top. I didn't fancy the spray, which on the face of it seems wasteful - my intention was to use it straight from the bottle - I'll come back to this in a moment.
Since it was ready to go, I thought I'd give the spray a try. Not good. Possibly the spray device on my first bottle was defective, but I couldn't direct the spray accurately enough - in fact, the activator fluid also came out below the spray button, and got onto my hand. I tired of that fairly quickly, so I unscrewed the top, and used a wooden cocktail stick to apply the fluid directly to the glued joints.
The fluid smells quite volatile, and certainly it flows easily and rapidly. Because it has very low viscosity, I couldn't get a decent sized drop to form on the pointed tip of the cocktail stick, but I could get a visible droplet on the square butt end of the stick. Excellent - present the droplet to the assembled, glued joint, the activator flows right inside the joint and the glue solidifies - instantly - as you look at it.
I recommend this stuff - for the kind of work I'm doing, though, the spray device is useless, so borrow the cocktail sticks.