Is it just me, or does Weld-on #3 seem to have a much stronger bond?

I only wish that I had these kind of glues as a kid...my Airplanes might have turn out a LOT better!!

And the irony of it....My Dad helped me..and he was a Chemical Engineer....in Plastics (pvc). you would think we would have had at least some MEK.... 

Two different medias...CA is a glue which bonds two surfaces together. Weld-On and othe solvents melts the styrene like a welder melts metal together.

CA  ]I[ the two surfaces never touch, there is barrier between them...the CA which holds the two surfaces in place.

Solvent has no gaps (if done correctly) becomes a solid single piece. 

Weld-On #3 is an excellent plastic solvent. It doesn't flash off as fast as Tenax 7 and it dries a little faster than Testors liquid. It has good workability and capillary action. I buy it from a local plastic distributor.

Back in the late 70's or early 80's, some company started marketing a Weld-On #3 type solution in 1oz. bottles to hobby shops. Everybody went wild about this new glue. For a couple of years my LHS couldn't keep it on the shelf. The funny thing was, you could buy a pint of Weld-On #3 for the same price as 2 bottles of this new glue. It was the exact same thing.

Lacquer Head wrote:

Weld-On #3 is an excellent plastic solvent. It doesn't flash off as fast as Tenax 7 and it dries a little faster than Testors liquid. It has good workability and capillary action. I buy it from a local plastic distributor. Back in the late 70's or early 80's, some company started marketing a Weld-On #3 type solution in 1oz. bottles to hobby shops. Everybody went wild about this new glue. For a couple of years my LHS couldn't keep it on the shelf. The funny thing was, you could buy a pint of Weld-On #3 for the same price as 2 bottles of this new glue. It was the exact same thing.

Hereth the lesson: You PAY for convienence.

I found this interesting. 

I sell those little bottles they once offered. Great for holding "working" quantity of solvent on the workbench. The reason IPS stopped selling them...economics...not enough sales to justify the cost to produce.