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PostPosted: Mon Mar 23, 2009 3:51 pm 
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Location: Auckland, NZ
Looking for the above for a repair needed on an acrylic tank, anyone have any, only need small amount, but smallest I can purchase is 5 litres.

Cheers
Wayne


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PostPosted: Mon Mar 23, 2009 4:01 pm 
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Wiki wrote:
Dichloromethane chemically welds certain plastics (for example, it is used to seal the casing of electric meters). Often sold as a main component of plastic welding adhesives it is also used extensively in the modelmaking industry for joining plastic components together - it is commonly referred to as "Di-clo."


have you tried a model making shop?


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PostPosted: Mon Mar 23, 2009 11:06 pm 
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You can use methylene chloride or methyl trichloride (chloroform). I know you can get methyl trichloride from pharmacies. Obviously, you'll have to tell them why you want it and probably provide ID and a phone number and address, but as long as you don't look like a creepy rapist/stalker, you'll be good.

EDIT: it comes in 50ml from memory. Just realised I sound like a creepy stalker with all this knowledge about chloroform...

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PostPosted: Tue Mar 24, 2009 3:58 am 
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I have bought it from the same places that sell the acrylic. It was in the form of an adhesive where the acrylic had been predisolved in the solvent. That was some time ago and the law on sales may have changed since but it could be a good place to start.

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PostPosted: Tue Mar 24, 2009 8:30 am 
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i have often wondered:

if you were to stand in a street with a damp cloth and propose to people passing by "does this smell like chloroform to you?"
and how many people would sniff it...

:lol:

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PostPosted: Tue Mar 24, 2009 8:47 am 
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Cricketman wrote:
i have often wondered:

if you were to stand in a street with a damp cloth and propose to people passing by "does this smell like chloroform to you?"
and how many people would sniff it...

:lol:

lmao worlds most successful pickup line :wink:

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PostPosted: Tue Mar 24, 2009 9:03 am 
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If anyone thought imsmith sounded like a creepy stalker I'm about to sound worse


Cricketman wrote:
i have often wondered:

if you were to stand in a street with a damp cloth and propose to people passing by "does this smell like chloroform to you?"
and how many people would sniff it...


It does not work instantly it takes some time to take effect.


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PostPosted: Tue Mar 24, 2009 9:18 am 
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oeminx wrote:
If anyone thought imsmith sounded like a creepy stalker I'm about to sound worse


Cricketman wrote:
i have often wondered:

if you were to stand in a street with a damp cloth and propose to people passing by "does this smell like chloroform to you?"
and how many people would sniff it...


It does not work instantly it takes some time to take effect.



I'm gonna trump the creepy stakes...been there, done that, I know it takes a while. Smells good though!

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PostPosted: Tue Mar 24, 2009 9:19 am 
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pm'd with a contact name ph no. etc in auckland


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PostPosted: Tue Mar 24, 2009 9:29 am 
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oeminx wrote:
It does not work instantly it takes some time to take effect.


yea i get that, but the fact that some people might still have a go at it would make it funny...

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Disclaimer: All of the above is personal opinion, and is not reflective of anything anyone else may have said. It is an insight from my own knowledge. Until such time as anything i have said can be proved to be wrong factualy it is my POV. And is given freely on a take it or leave it basis.


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PostPosted: Tue Mar 24, 2009 9:59 am 
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O I'm not saying it wont be Roflmao


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PostPosted: Tue Mar 24, 2009 10:02 pm 
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Location: Auckland, NZ
Here is what I have found so far.... Thanks for all you suggestions...

Scientic supplies in Panmure? Penrose sells 1 litre for $22. but you need a materials handling certificate and an account with them to purchase it. As well as some other certificate they mentioned....

However Marketing chemicals in Church St penrose will sell me 5 litres for $45 inc. no hassles. Go figure...

I had not heard of using Methyl Trichloride (chloroform) for this, is it as good as the Methylene Chloride. I have enough acrylic here to make a couple of small tanks and was going to "have a go" at that as well... But dont want the hole thing bursting apart on me if I have used the wrong stuff....

I did get some acrylic glue from the acrylic sheet supplier, but it is very thick and needs thinning (hence the MC as well). but for longer joints this stuff dries to quickly and I need something that will "seep" into the joint.

Model shops only stock plastic cement based on M.E.K (methyl Ethyl Keytone, or something like that) as models are made from styrene based plastics and does not seem to work well on Acrylic's.

Thanks for all the help, if anyone else needs any of this stuff, I should have about 4.8 litres of it spare by the end of the week.

Cheers
Wayne

P.S. Love the "does this smell like chloroform to you?" - ROTFL


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PostPosted: Tue Mar 24, 2009 10:54 pm 
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lf you're using it to stick a whole tank together you need to use silicone. Methyl Trichloride and Methyl Chloride are used to stick acrylic together but they are not good weight bearers - use the Methyl Trichloride AND silicone, or just stick with silicone.

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PostPosted: Wed Mar 25, 2009 6:56 am 
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lmsmith wrote:
lf you're using it to stick a whole tank together you need to use silicone. Methyl Trichloride and Methyl Chloride are used to stick acrylic together but they are not good weight bearers - use the Methyl Trichloride AND silicone, or just stick with silicone.


I thought silicone doesn't stick to acrylic? Not in the way it sticks to glass anyway.


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PostPosted: Wed Mar 25, 2009 2:27 pm 
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It does. Your beat option is to use hot weld (from craft shops) it stinks to high heaven, but air and rinse the tank, and once the fumes have gone, you'll be good to put fish in it.

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