PDA

View Full Version : What went wrong



edlea
26-08-13, 14:32
Just finished this Cigar in Coolabah burl with six coats of CA/BLO .It was like glass than after around a couple of minutes or so it went dull ..still looks OK, but what happened to my 'finish like glass' ???

retreatjohn
26-08-13, 14:52
Did you cut it back then burnish it?

edlea
26-08-13, 15:04
Did you cut it back then burnish it?

I didn't cut it back but I did burnish it with Polywatch cream which has worked well on other woods .

retreatjohn
26-08-13, 15:26
I always cut the ca back by going through the micro mesh pads from 1500 grit to 12000 grit, then use burnishing cream.

edlea
26-08-13, 15:32
I always cut the ca back by going through the micro mesh pads from 1500 grit to 12000 grit, then use burnishing cream.


Thanks very much ..will try that method.

rowdyyates115
26-08-13, 17:00
Same here Ed, I cut the CA back with the full range of micro mesh pads.

Might be worth a go at dismantling the pen, cut back a little then add couple coats of CA, cut back again then burnish.... Lets know what you do and how you recover.... Good luck buddy... :thinks:

Jim
26-08-13, 17:02
What did you use on the blank before applying the CA Ed? :nooidea:

edlea
26-08-13, 18:14
What did you use on the blank before applying the CA Ed? :nooidea:

I applied a coat of BLO as per Mr Young's instructions on his you tube video. Like I say the same procedure has worked a treat for me on other woods. ???:nooidea:

Terry
26-08-13, 18:44
I don't think you can guarantee CA 100% all of the time with all woods!!!!!

Jim
26-08-13, 19:07
I applied a coat of BLO as per Mr Young's instructions on his you tube video. Like I say the same procedure has worked a treat for me on other woods. ???:nooidea:

That could be the issue here, i have had the same, if the BLO hasn't gone off (Used to much) it is hard to get a good sheen .. :down:

edlea
26-08-13, 19:35
That could be the issue here, i have had the same, if the BLO hasn't gone off (Used to much) it is hard to get a good sheen .. :down:

Gadzooks Jim I think you may have hit it on the head ..I think I was a bit too heavy handed with it this time. It's a leaning curve init !!

sbwertz
26-08-13, 20:31
That can happen if the blank is not completely dry. Also if your BLO or CA are not fresh. The first thing I would try is hitting it with a soft buffing wheel. If that doesn't bring up the finish, disassemble the pen, sand it lightly and try again. \

I had to buy new CA and BLO when I forgot to bring it in the house when not using it. The high temps in Phoenix will affect both. The CA still works OK for gluing, but will not bring up a good finish. It could be that the high heat you have been having has damaged your CA and/or BLO. I buy them in fairly large quantities, and now I decant a small amount into smaller bottles to use at the lathe, refilling them as needed from the bottles in the air conditioned house. My dad kept his CA in the freezer because he didn't use it that often, but I've never tried that.

rowdyyates115
26-08-13, 21:14
I always keep CA in refrigerator, it was common practise in my old industry (Hard Drive (IBM)

wm460
27-08-13, 07:46
I gave up using BLO had too many problem with it.

Neil
27-08-13, 08:09
Couple of things could have happened, moisture makes the CA mist like this, was it very hot in the workshop? Cup of steaming coffee next to it? The CA could be off, some keep it in the fridge. Doesnt sound like you did use an accelerant but some of the cheap ones are not compatible with all makes of CA.

Best way to solve this problem is to collect up all the CA you can find and chuck it all in the bin and use a good polish regime. Lets not forget the C in CA stands for cyanide!

Jimjam66
27-08-13, 08:42
Ed, you've got some great tips here. My tuppence: I understand from the thread that you never cut back the CA before polishing. If the CA had an uneven surface (pretty much guaranteed if you never cut it back) at best you're going to get a satin finish. (While you were polishing the polish filled all the unevenness which is why it looked like glass while you were polishing.). Try using 1200 grit paper WET to smooth the CA, then work up through your micro mesh grades. Careful you don't cut back all the way through your CA! Then polish again. If that doesn't work, maybe your CA or BLO are the culprits.

Good luck!

edlea
27-08-13, 09:12
Thanks everyone for all your contributions it has given me lots to think about. I think I need to try this 'friction polish' stuff that everyone talks about :thinks:

wm460
27-08-13, 09:31
I gave up using micro mesh now just use wet and dry 600gr to 2500gr.

yorkshireman
27-08-13, 19:21
[QUOTE=edlea;14687]Thanks everyone for all your contributions it has given me lots to think about. I think I need to try this 'friction polish' stuff that everyone talks about :thinks:[/QUOTE

After seeing Neil's work first hand I'm using that from now on.

keith