What bad glue can do to the board

[SolderTrouble]

Re: What bad glue can do to the board

@TechGeek: What did you mean by "IT"?

[TechGeek]

Re: What bad glue can do to the board

check IT for glue, too

[SolderTrouble]

Re: What bad glue can do to the board

I found another forum thread about the glue:
http://www.electronicspoint.com/thre...-boards.61364/
The last message there contains: "You can't get it off until it starts discoloring. I've tried."

The glue on my monitor's power supply is still yellow or light tan. I tried applying 91% isopropyl alcohol with a q-tip for a few minutes but that didn't help me scrape it off with an exacto knife. So I'm looking for more detailed information about how to remove the glue.

How about a moto-tool with a small filing bit? I'm wondering whether to buy and try the following one at Amazon, which costs about $24:
Dremel 7300-N/8 MiniMite 4.8-Volt Cordless Two-Speed Rotary Tool
https://www.amazon.com/gp/product/B003TU0XFU

[stj]

Re: What bad glue can do to the board

no, they are so crap that other parts fail before it gets that bad - other than on the heatsink - but there is nothing to short there.

if one was repaired & modded without removing the glue, you could theoretically get to that point though.

[TechGeek]

Re: What bad glue can do to the board

Do you have any chargers with that glue that's gone conductive?

[stj]

Re: What bad glue can do to the board

lots of it in RYOBI battery chargers too.
all over the mains wires & choke etc - great fun if it goes conductive!

[TechGeek]

Re: What bad glue can do to the board

Holy cow!!!!

[ReeceyBurger123]

Re: What bad glue can do to the board

Yet again im bringing up an old thread lol

I have a STA250TV psu from a 32" Bush Tv it had clumps of the horrible glue all over the place, it corroded the board that bad that it ate through the copper traces which come off the output diode to the output choke ! Crazy stuff !

[int0x13]

Re: What bad glue can do to the board

Ok, so isopropyl alcohol (that i use to clean flux on PCB) should be used. I had tried acetone and it wasnt working at all. I also tried hot air (with my SMD rework station) without any luck too, this glue cant melt even with high temperature.
Based on my reads it contains chloroprene or melamine material, right?

[Th3_uN1Qu3]

Re: What bad glue can do to the board

No. That's exactly the thing - with heat, the bad glue turns from yellow to brown and becomes corrosive and conductive. It also hardens rather than softens, making it break in little pieces when you scrape it off.

[Lumberjack777]

Re: What bad glue can do to the board

I have never encountered the glue problem. I guess I'm lucky in that respect. On certain video chips that are BGA (ball grid array). I have oftentimes encountered glue surrounding the entire chip. I have a hot air station, and I just heat the glue and peel it away with a dental pick. Does hot air not work with this type of glue, to soften it?

[budm]

Re: What bad glue can do to the board

I use Alcohol to soften them first, it does take awhile, you can also use small cutter to trim it off as much as you can, scraping with small thin blade also help, just take your time.

[int0x13]

Re: What bad glue can do to the board

Hello badcaps, i was reading this thread and found it interesting because i encountered the same yellow glue (i think) in a Klipsch Audio Amplifier, can you confirm it is the same thing:
http://i.imgur.com/L14Q8.jpg
Id like to know which tool and which chemical cleaning solution do you recommend to remove this damn glue? I had a horrible plain to remove it but i think i used wrong method (i used cutter and tweezers). Thx.

[kc8adu]

Re: What bad glue can do to the board

stop feeding the troll and it will go away.only reason kirakos is not on ignore here is because i am a moderator charged with enforcement of forum rules.

[budm]

Re: What bad glue can do to the board

"Stick to your favorite Google search, mostly because is free of charge." So, please tell us more Jesus!

[Kiriakos GR]

Re: What bad glue can do to the board

"
A Google search

Stick to your favorite Google search, mostly because is free of charge.

[ben7]

Re: What bad glue can do to the board

I just never use glue. There's really no need to IMO. The soldering is more than enough to hold the components in place (at least on the average TV/Monitor/PC PSU PCB).

I don't agree... If soldering itself was enough to prevent cold joints due to oscillations, then it would never have been used in the first place... I'm aware that the adhesive is also used to keep components in place during flow soldering, but its main purpose is for high-frequency vibration absorption.

I half agree. With lead-free stuff, you need that glue, since that stuff is so brittle. Usually extra large components should have extra pins for more stability on the board, like those 4 pin snap-in capacitors.

I'm surprised you guys didn't learn already to just ignore him. I'm not wasting my breath and my fingers on him anymore...

I'd say the same, if someone is bothering you, just ignore. If they keep bothering you, then report them.

Hot glue FTW.

Totally!

[budm]

Re: What bad glue can do to the board

More example.

[mariushm]

Re: What bad glue can do to the board

I'm surprised you guys didn't learn already to just ignore him. I'm not wasting my breath and my fingers on him anymore...

[budm]

Re: What bad glue can do to the board

@lexwalker: No, that is not good enough evidence for the Greek, and since you do not have "PRO" in your sig, he cannot take you seriously and tell you that you are just a kid at the key board. He needs to teach us " In a way, what Jesus did"