JBC C245 Coating removal cartridge - burr at edge  - Page 1
Forum section: electronics / general

author: Okto47
author_rank: Contributor
timestamp: January 30, 2024, 10:22:05 pm
content: Hello,Just bought the coating removal cartridge JBC C245-109 for about 40 bucks so not really cheap for a tip.The cutting edge has a small partial burr on both sides which makes it unusable , at least in my case.(The burr scratches the underlying hard but thin protective & anticorrosive isolation layer. Because of that layer I had to use heat to remove the heat sensitive layer on top of it without much force.)Anyone else got that cartridge and knows if that burr is standard or if I just got a bad one ?Easy to remove that burr by myself but then the hard chrome coating got partially removed too - what that means for usability & lifetime ?

author: thm_w
author_rank: Super Contributor
timestamp: January 30, 2024, 10:44:30 pm
content: Interesting, it is not tinned as you say just chrome:https://www.jbctools.com/c245109-conformal-coating-removal-cartridge-43-not-for-soldering-product-445.htmlMy guess is the burr was formed during grinding, and then plated over. So no real chance to salvage it without screwing up the plating.Plating shouldn't form a sharp surface like that.If this were to be used with solder, it would definitely fail prematurely and start eroding in weeks, but conformal coat.. probably still last a while I would think. What temperature do you use it at?

author: Okto47
author_rank: Contributor
timestamp: January 31, 2024, 07:19:28 am
content: Yes thought the same - it’s from grinding and plating got over that.Haven’t really worked with that JBC Tipp because of that burr but at my old non jbc tip the temperature was about 240°C.But it got rarely used for other stuff too, mostly lower temps but sometimes even over 300°C (stronger high temp epoxy’s)Maybe that temperature without flux and molten tin alloy is no problem even without plating , but thought it would become very soft and molten / burned coating will stick way more onto (oxidised) copper as onto chrome so it would need way more servicing if I remove the burr and so partially the plating.But looks like I had to try that anyway.Maybe anyone owns one of that tips too and can confirm if that burr is always present or if I got a bad one?Then it would be better to regrind a worn out chisel next time instead of buying it again.

author: MR
author_rank: Regular Contributor
timestamp: January 31, 2024, 09:09:37 am
content: JBC tips which we have bought are usually trouble free and the quality is good. In case you stumble over such issues I would contact their technical support (they are very supportive and reply within a few hours).You'll probably get a valuable answer quicker than even posting in the forum here (=my experience, I contacted them a few times and always got spot on answers, they even helped to fix an 110v solder iron which accidentally was plugged into 220v outlet...).

author: Okto47
author_rank: Contributor
timestamp: January 31, 2024, 07:56:21 pm
content: Ok thx , will try that .Haven’t done that because I made the opposite experience, still wait for an answer to a mail I wrote them months ago about something else.

author: thm_w
author_rank: Super Contributor
timestamp: January 31, 2024, 10:48:52 pm
content: I guess at this point though I would just send a photo of that tip and the serial number, don't mention grinding, and hope they'll give you a new one without asking for the old one back.

author: MR
author_rank: Regular Contributor
timestamp: February 01, 2024, 11:17:34 am
content: Quote from: Okto47 on January 31, 2024, 07:56:21 pmFrom my experience with them, if your mail is not answered within a few hours you can probably retry. I received my answers within a few hours (2 or 3 contacts over the last years, the recent contact was just a week ago)Sometimes they forward your question to the representant of your country - so it might hang there.The spanish and german offices are top.