Simple!
PlasticWeld works perfectly on PLA, I never use anything else, and is a lot less stressful than keeping SG from where it isn't supposed to be.
Simple!
Too rare and nice an loco, to be abused that way. Send it down here, I can provide a loving home for it among fellow sugar engines.
Thanks. Is that a normal styrene solvent? I tried one of my styrene solvents and nothing happened.
I mentioned on another forum where you have posted this topic Rik that indeed regular epoxy two pack adhesives are not failure proof, especially with age. I have found, irrespective of make,that after about 10 years in a normal environment they will develop a rubber like consistency and lose their ability to bond. That is not to say there are types that will not fail over longer periods or in testing environments.ge_rik wrote: ↑Tue Jun 01, 2021 3:45 pm I don't know if it's me or what, but I've noticed that epoxy doesn't seem to be what it was. I can remember Araldite being really effective when I was a teenager (50+ year ago), but whether it's no longer what it was or I'm viewing the past through rose tinted specs ....?
I bought a secondhand IP Engineering whitemetal Plate Frame Simplex which someone had Araldited together - and it just fell apart. I cleaned it up and reassembled it with low melt solder (my first experience with it), and the difference is remarkable. Solid as a rock - and I'll admit my soldering is not the world's best!
Rik
It's dichloromethane/methylene chloride, which I have started using for PLA also thanks to Philip's advice. It is, in my view, far superior to cyanoacrylate being easier to use and providing a far strong (welded) bond - just like acetone with ABS. However it is also somewhat hazardous and possibly carcinogenic, and being more concerned about my health than how my models stick together I take the precaution of only using it outside... which means on rainy days I still stick my PLA stuff together with superglue!
Unfortunately, unless you have professional access to it, dichloromethane itself has been 'elf 'n safteed' and is no longer on sale to Joe Public. However Plasticweld is available from EMA (www.ema-models.co.uk) in modellers sized bottles (50mml?) or 500ml cans. The small bottles are fairly widely available on ebay, Amazon and some model shops.
Is this what was called Methyl Ethyl Ketone (MEK), but had a name change due to change of naming protocol.SimonWood wrote: ↑Thu Jun 03, 2021 11:10 amIt's dichloromethane/methylene chloride, which I have started using for PLA also thanks to Philip's advice. It is, in my view, far superior to cyanoacrylate being easier to use and providing a far strong (welded) bond - just like acetone with ABS. However it is also somewhat hazardous and possibly carcinogenic, and being more concerned about my health than how my models stick together I take the precaution of only using it outside... which means on rainy days I still stick my PLA stuff together with superglue!
No. They are two very different substances.
It's known now as Butanone, although still available on Amazon as MEK.
Users browsing this forum: No registered users and 4 guests