06 November 2012, 19:02 | #1 |
Registered User
Join Date: Sep 2006
Location: Thunder Bay, Canada
Posts: 4,323
|
ChipQuik and substitute
Hi all, i was looking around to find a replacement for chipquik. It works good but very expensive... The last batch i bought was $20 and only weighs 12 grams (0.42oz) First of all i had to find out what chipquik is actually made of and i found that it is comprised of different metals in a specific ratio that leads to the low melting point. Once i found that out i then went on ebay and i found this...
http://www.ebay.ca/itm/Virgin-Amallo...#ht_2598wt_208 It weighs 3lbs (1361 grams) and has a low melting point of 158 deg F and costs $40. Therefore you get 113 times more than the $20 chipquik at only double the price. The melting point is a little higher than chipquik but it will still do the job at a safe temperature for smd removal. For those people that do a lot of SMD work this would be ideal. You would have to scrape bits off the block but a small price to pay for the purchase price. |
06 November 2012, 23:26 | #2 |
Registered User
Join Date: Jun 2010
Location: PL?
Posts: 2,892
|
http://www.techni-tool.com/site/MSDS/319SO016.pdf
http://www.techni-tool.com/site/MSDS/319SO032.pdf http://www.techni-tool.com/MSDS-Sheets#ChipQuick however even lower melting point is offered by Gallium alloys (like Galinstan), also low melting point is offered by some alloys used in prostodontics. Last edited by pandy71; 06 November 2012 at 23:38. |
07 November 2012, 14:29 | #3 |
ex. demoscener "Bigmama"
Join Date: Jun 2012
Location: Fyn / Denmark
Posts: 1,646
|
so up to 73% is tin, indium and lead - where's the rest? :-)
|
07 November 2012, 15:38 | #4 | |
Registered User
Join Date: Sep 2006
Location: Thunder Bay, Canada
Posts: 4,323
|
Quote:
They use cadmium, indium, bismuth tin and lead in their own recipe. I also bought a block of alloy that will melt in hot water... 46 deg Celcius... (also works out cheaper than buying chipquik... One third of the price for info, Chipquik melts at 136 deg F ((58 deg C) http://www.ebay.ca/itm/280998411099?...#ht_1793wt_898 couldn't resist |
|
08 November 2012, 09:34 | #5 |
MI clan prevails
Join Date: Jul 2010
Location: Belgrade, Serbia
Posts: 1,443
|
Kipps, your inbox is full
|
10 November 2012, 15:22 | #6 |
Registered User
Join Date: Sep 2006
Location: Thunder Bay, Canada
Posts: 4,323
|
i cleaned out my mailbox a bit so i have some room.
I tested this block of amalloy i bought from ebay and it works just as good as chipquik. It really is worthwhile buying this, even if 3 or 4 people split the cost. it is the safest way of removing IC's and multiple pinned components. When you use it you need to put some flux on the component and then just use your soldering iron on the brick to grab some of the alloy to put on the component.. Simple |
10 November 2012, 16:50 | #7 |
Unregistered User
Join Date: Sep 2012
Location: Copenhagen / DK
Age: 44
Posts: 4,190
|
|
12 November 2012, 15:55 | #8 |
ex. demoscener "Bigmama"
Join Date: Jun 2012
Location: Fyn / Denmark
Posts: 1,646
|
that's my concern as well.. you probably won't be allowed to order from the US non-commercially and even so, you would need all sorts of clearances to import toxic metals..
|
13 November 2012, 12:15 | #9 | |
Registered User
Join Date: Jun 2010
Location: PL?
Posts: 2,892
|
Quote:
http://www.ebay.de/itm/Roses-Metall-...item3a78b81f2b http://www.ebay.de/itm/Woodmetall-Wo...item3a7b513062 |
|
13 November 2012, 13:08 | #10 | |
Unregistered User
Join Date: Sep 2012
Location: Copenhagen / DK
Age: 44
Posts: 4,190
|
Quote:
Question is then which one to choose. The difference seems to be that #2 has Cadmium in it and melts at 70 deg instead of 100 deg. But #1 also doesn't seem to ship to other than German-speaking countries, so maybe I should try the homemade stuff from #2. |
|
13 November 2012, 14:35 | #11 | |
Registered User
Join Date: Sep 2006
Location: Thunder Bay, Canada
Posts: 4,323
|
Quote:
I had fun yesterday stripping down old boards for parts, now that this stuff is cheap it is worth salvaging these pieces. especially for those old components thst are hard to find. If you are not sure of your countries import laws, call customs and revenue people. It's only metal so i don't think you should have problems. |
|
13 November 2012, 14:54 | #12 | |
Unregistered User
Join Date: Sep 2012
Location: Copenhagen / DK
Age: 44
Posts: 4,190
|
Quote:
Edit: If you're just stripping an entire PCB for parts, couldn't you also just put it in the oven on 250 deg. C and shake off everything? |
|
14 November 2012, 11:42 | #13 | |
Registered User
Join Date: Jun 2010
Location: PL?
Posts: 2,892
|
Quote:
Perhaps both are OK not sure on this - price seems to be reasonable - alternative source to ebay can be any chemicals distributor that sells for example Merck or similar companies products. |
|
30 March 2013, 22:04 | #14 | |
Unregistered User
Join Date: Sep 2012
Location: Copenhagen / DK
Age: 44
Posts: 4,190
|
Quote:
Unfortunately it didn't work like the Chipquik I've seen in videos and in fact it didn't help me at all in the desoldering process. It does melt at a low temperature and stays melted for a very long time, so that part is fine. It just doesn't seem to want to mix easily with the solder, so eventhough I applied plenty of it all the way around and it was sticking to all the CPU pins, which meant the solder should have melted when I applied it, it still wouldn't budge. I had to use the good ol' heat blower for over 5 mins before the CPU wanted to come off. I don't know what makes this 'Woodmetal' different from Chipquik. Any ideas? |
|
31 March 2013, 00:19 | #15 | |
Registered User
Join Date: Sep 2006
Location: Thunder Bay, Canada
Posts: 4,323
|
Quote:
Did you apply lots of flux? it should work fine but you have to use the flux (same with the real stuff) |
|
31 March 2013, 00:45 | #16 |
Unregistered User
Join Date: Sep 2012
Location: Copenhagen / DK
Age: 44
Posts: 4,190
|
|
31 March 2013, 04:11 | #17 | |
Precious & fragile things
Join Date: Feb 2009
Location: Victoria, Australia
Posts: 1,946
|
Quote:
In the case of the A600 was there any electrolyte on the site because that can make life hard too. One other solution that may work is to drag a line of fresh solder gently across the front of the pins making sure that it melts into the old stuff. I use a pair of very fine pointed tweezers to periodically test whether the solder has melted by applying very slight pressure and seeing if the chip moves. |
|
27 September 2013, 10:24 | #18 |
Posts: n/a
|
FYI
https://en.wikipedia.org/wiki/Wood%27s_metal Toxicity: Wood's metal is toxic because it contains lead and cadmium, and therefore contact with the bare skin is thought to be harmful, especially in the molten state. Vapour from cadmium-containing alloys is also known to pose a danger to humans. Cadmium poisoning carries the risk of cancer, anosmia (loss of sense of smell), and damage to the liver, kidneys, nerves, bones, and respiratory system. Field's metal is a non-toxic alternative. The dust may form flammable mixtures with air. Use: https://en.wikipedia.org/wiki/Field%27s_metal |
27 September 2013, 10:55 | #19 |
Unregistered User
Join Date: Sep 2012
Location: Copenhagen / DK
Age: 44
Posts: 4,190
|
Good point. I quickly noticed a nasty smell when using it, so used a suction vent above it to remove the fumes.
Btw, I did test the stuff I got from ebay again, and it works great as long as you apply plenty of flux. I still use the hot air gun for removal of plcc's though as it is faster overall (much faster to clean up). |
Currently Active Users Viewing This Thread: 1 (0 members and 1 guests) | |
Thread Tools | |
Similar Threads | ||||
Thread | Thread Starter | Forum | Replies | Last Post |
Aros m68k (Kickstart substitute) | mihcael | Amiga scene | 392 | 29 November 2022 01:16 |
Kickstart substitute | gilgamesh | request.UAE Wishlist | 19 | 17 January 2009 15:37 |
|
|