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Crack Hood Parker 21


julikko

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I have a Parker 21 with a crack in the lip of the hood, which goes pretty much half way down the hood and crosses the threads. I have searched in the forum, and there seem to be three fixes to this issue (cracks in early acrylic pens):

(1) Buy a replacement hood. Or just, given the low price of these, get a new pen.

(2) Filling the gap with Super Glue (gel).

(3) Fusing the plastic with dimethyl chloride (Hairline cracks).

(4) (this, I remember from a relatively long time ago) Fusing the plastic with chloroform. Searches for "chloroform" in the forum return no hits.

fpn_1521225833__crack212.jpg

 

fpn_1521225779__crack211.jpg

 

(Sorry for the carpy images. iPhone 5 only goes that far)

 

The best solution, obviously, is (1); (2) goes against general advice of using Superglue for anything (Repair "dont's") and, based of past experience, hazing is an issue, plus, postings advising Superglue did not deal with cracks in the threads; (3) would not fix the problem, since clearly the plastic has shrunk: I need to fill that gap (anyway, Captain Tolley's Creeping Crack Cure seems to work best for hairline cracks); I tried (4) years ago and, besides having the inconvenients of (3), either does not work at all or the kind friend from the Chemistry department who let me have a chloroform sample though I wanted it for nefarious purposes and gave me a bottle of spring water.

 

This is more a "fun" project than a practical one: I have enough working 21's around. I do not mind if it curing takes a long time. Access to more complex tools (lathe) is a problem: anything beyond a file and sandpaper / micromesh is out of the question. Which way would you go?

 

Julio

 

"Winners never quit, and quitters never win. Idiots, on the other hand, never win and never quit"

(I am sure that someone said this, but heck if I know who was her).

The problem with ideas is that good ideas and bad ideas look about the same until you put them into practice.

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I would also replace the hood.

 

FB

 

 

PS. Check your chemistry.

San Francisco International Pen Show - The next “Funnest Pen Show” is on schedule for August 23-24-25, 2024.  Watch the show website for registration details. 
 

My PM box is usually full. Just email me: my last name at the google mail address.

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