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How to safely clean pens with CA finish

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Forum topic by Thuzmund posted 04-07-2020 03:18 PM 322 views 0 times favorited 14 replies Add to Favorites Watch
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Thuzmund

174 posts in 2365 days


04-07-2020 03:18 PM

Topic tags/keywords: cleaning pen rubber solvent

Hello!

I sold a pen with a CA finish. Customer put a rubbery grip on the pen, and says it has left white marks. I will add a pic when I receive it.

So how to safely clean the pen? And any idea what caused this?

I suggested diluted alcohol, or rubbing/buffing with a rubber eraser then denim cloth then brown paper material. Warned him against acetone, which interestingly is the solvent for rubber as well.

Thanks for any help you can share :)

-- Here to learn


14 replies so far

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Rich

5529 posts in 1326 days


#1 posted 04-07-2020 05:34 PM

Rubber, latex, etc will damage many finishes. I set something that had stick-on rubber feet down on a platter I’d finished with lacquer and it left marks after a few hours.

I’m not sure the best way to clean the pen, but I’d definitely add “no rubber grips” to my list of ways to care for the pens you sell.

-- Half of what we read or hear about finishing is right. We just don’t know which half! — Bob Flexner

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Thuzmund

174 posts in 2365 days


#2 posted 04-07-2020 06:39 PM

Wow, I had no idea about that! I suppose it makes sense if they are both dissolved with the same thing (acetone). Thanks a lot for that I will have to remember it!

-- Here to learn

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Wildwood

2854 posts in 2871 days


#3 posted 04-07-2020 06:49 PM

Wish you told us what kit talking about. My two cents worth is small container filled with water & drop or two of dish wash soap: wet sand using micromesh to remove white marks. Not sure what grit to start with not seeing what you have. Depending upon surface finish after surface dries may or may not give another coat of CA. If that doesn’t work tell client sorry cannot help you.

-- Bill

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Andybb

2751 posts in 1340 days


#4 posted 04-07-2020 08:08 PM

Why did he take the rubbery grip off assuming the white stuff was under the rubber?

Replace it with a Comfort kit that comes with a rubber nib.

-- Andy - Seattle USA

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LittleBlackDuck

4483 posts in 1557 days


#5 posted 04-07-2020 09:07 PM

Short of some very fine abrasives you can find in the home (like toothpaste) I don’t know what you can recommend to the client (assuming he’s asking for a fix).
Depending on the style of pen you might ask him to send it to you, fix and send back if the goodwill is important (which it should be)... If it’s only a slimline… phuie!

Agree with Andybb... put it back on… and Rich, disclaimer “no rubber grips”.

For people that have a latex fetish in their pens, maybe put a Guardian in your repertoir,

(chrome Guardian with Black Palm blank) or some other pen with a rubber grip.

-- If your first cut is too short... Take the second cut from the longer end... LBD

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Rich

5529 posts in 1326 days


#6 posted 04-07-2020 09:19 PM

El Patito Negro’s comment reminded me of something. The Micro Mesh pads come in sets with grits ranging from 1500 to 12000. You can use the coarser grits to clean off the marks and then polish it back by going through the higher grits in order.

I once set my ROS down and just caught the crystal covering my dial caliper. It was scratched badly enough to make it unreadable over a quarter of the dial. I used the Micro Mesh pads and got it back just like new.

-- Half of what we read or hear about finishing is right. We just don’t know which half! — Bob Flexner

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Thuzmund

174 posts in 2365 days


#7 posted 04-07-2020 09:33 PM

In my case the customer is asking for a fix. We live a bit far apart and it is a cheaper PSI kit (just 7 or bucks) so I intend to make another if his fix fails. Not a problem but I am blown away by the danger of rubber and so thankful to learn about that. I don’t blame the customer for putting a grip on at all, it doesn’t seem intuitive that it would be risky. We will see if it is something like rubber material stuck on top or if the finish itself is compromised. The white marks make me expect the finish is harmed.

-- Here to learn

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LittleBlackDuck

4483 posts in 1557 days


#8 posted 04-07-2020 09:46 PM



.... We live a bit far apart and it is a cheaper PSI kit (just 7 or bucks) so I intend to make another if his fix fails….
- Thuzmund

Good move.
Depending on where you bought your kit from… if one of the bigger suppliers (PSI, Berea etc…), a PM to their experts wouldn’t go astray. Personally, they should have an explanation and maybe do some experimenting as it would be to their benefit.
Meanwhile, warn customers.

-- If your first cut is too short... Take the second cut from the longer end... LBD

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Andybb

2751 posts in 1340 days


#9 posted 04-07-2020 09:55 PM

Just make him a Comfort with a rubber nib. It’s a $5 kit plus bushings and an 8mm bit. You’ll make more of them. Customer service.

-- Andy - Seattle USA

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Thuzmund

174 posts in 2365 days


#10 posted 04-08-2020 12:57 AM

For future reference, let it be known that this is what happens when rubber meets CA! I was expecting a couple scuff-type marks, but nothing like this. Makes my jaw drop.

https://s3.amazonaws.com/vs-lumberjocks.com/q8g2np9.jpg!

-- Here to learn

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Wildwood

2854 posts in 2871 days


#11 posted 04-08-2020 07:03 PM

Looking at the photo not so sure rubber on/off caused the problem! Afraid have more questions than answers. To cut to the chase would offer client a discount on new pen not a free one!

-- Bill

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Thuzmund

174 posts in 2365 days


#12 posted 04-08-2020 07:18 PM

I don’t sell many so I don’t mind. One thought that came to mind was the advice of a friend who works in manufacturing. He says always wash new products very well because there are chemicals added to help release them from the molds. So I wonder if there was a chemical residue on the rubber grip possibly.

Email from the manufacturer says they are unaware of any issues with rubber reacting with CA. Altogether a weird experience.

-- Here to learn

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HokieKen

13556 posts in 1875 days


#13 posted 04-08-2020 07:29 PM

Rubber will outgas biproducts of the production process. In some cases these gasses will be harmful to CA glue. I suspect that is the situation here. “Rubber” gets used to describe a lot of different compounds. So I would caution the customer to steer clear of putting the rubber grip on the pen. Maybe offer to turn it a little bigger in that area if the grip was to reduce hand strain when gripping it?

-- Kenny, SW VA, Go Hokies!!!

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LittleBlackDuck

4483 posts in 1557 days


#14 posted 04-09-2020 12:33 AM


...Maybe offer to turn it a little bigger in that area if the grip was to reduce hand strain when gripping it?
- HokieKen

Good suggestion Hokie as it sounds like “made to order” clients.

Alternatively, maybe wire burn some grip rings, or borrow my beading chisel,

Alternatively, as mentioned before, put it back on and leave it on… why does it in need to be undressed sometimes?

-- If your first cut is too short... Take the second cut from the longer end... LBD

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