I just went into a LHS to replace my Faller liquid cement in the needle applicator bottle. Not to be found so I picked up Tenax 7R as they were out of Ambroid Proweld.
Is there much difference in these? Which do you prefer and why?
I also read something about Weld-On #3 but don’t know where one might buy it? [^o)]
For Weld-On #3 look in your local yellow pages for an industrial plastics supplier. Weld On#3 is an acrylic solvent, plastic models is just another benefit. A large can here runs about $10 you can get a small one for about $6. My large can has lasted me approximately 10 years and has assemble dozens of models in the process. The trick is to transfer small quantities into a smaller working bottle so you don’t loose any to evaporation by leaving the tin open.
Our group uses MEK (methyl ethyl ketone) which is available at our local hardware store in pints, quarts and gallons with a pint usually costing about 4 dollars. It flows like water and acts very quickly. One pint should last the average modeler years. A friend who is very knowledgeable about the modelling industry says almost all plastic glue is MEK based and that styrene is added to give a less “hot” product. We are very enthusiatic about using straight MEK on styrene and highly reccomend it. Hope this helps.
I use Tenax 7R & Ambroid ProWeld. They both work very well & are quite similar. Have a can of Weld-On 3 that I use if I’m out of the others, but it seems to be somewhat hotter.
This is very useful information! I wonder if this is true of Testors liquid plastic cement, if it has added styrene. Would make sense as I always have my "Touch-n-Flow" applicators gum up and become useless after a short time. I always thought there was something else present in the cement.