Results 31 to 37 of 37
Thread: Backyard Phosphating
-
21st Jul 2019, 02:07 PM #31.
- Join Date
- Nov 2008
- Location
- Perth WA
- Age
- 71
- Posts
- 6,458
Yes Chris, there is a polythene DPM under the concrete. The absence of insulation, open eaves and being located not more than a couple of hundred metres from the Baigup Wetlands along with the Swan River are probably the major contributors to my corrosion problems.
Capture.JPG
-
21st Jul 2019, 02:17 PM #32Most Valued Member
- Join Date
- Nov 2007
- Location
- melbourne australia
- Posts
- 3,228
Yeah, that large body of water might have something to do with it.
Chris
-
21st Jul 2019, 05:31 PM #33.
- Join Date
- Nov 2008
- Location
- Perth WA
- Age
- 71
- Posts
- 6,458
To the Swan Bob. That swamp called the Baigup Wetlands is much closer. I would never have thought about a large block size having an adverse effect on the shed's contents. I just mentioned this to my wife and she said we aren't downsizing and that I can put up with the rust!!
-
22nd Jul 2019, 10:28 AM #34Tool addict
- Join Date
- May 2008
- Location
- Perth
- Posts
- 241
When I did a short course of spray painting, we'd give the panelwork a treatment of phosphoric acid, then rinse it off with plain water afterwards. Immediately after rinsing we would dry away the water with compressed air.
Trainer got us to leave the first piece bare metal until we returned a week later, to see how it kept it all from rusting. The only piece that had any rust on it was one that someone had put their bare hand on afterwards, so there was a nice mildly rusty print on that one
-
22nd Jul 2019, 11:05 AM #35Member: Blue and white apron brigade
- Join Date
- Feb 2006
- Location
- Perth
- Posts
- 7,182
-
27th Jul 2019, 02:24 PM #36Member: Blue and white apron brigade
- Join Date
- Feb 2006
- Location
- Perth
- Posts
- 7,182
LH photos is Original, Mid photo is after one week and RH photo is after two weeks - all outside under cover
combo123.JPG
The smaller left most pieces which is raw sanded steel is now clearly rusting(closeup below)
The second leftmost piece (Sanded back to bare steel and then PAed) has now got a lots of very small rust spots on it (see also below)
The other two were not sanded back so were already rusty - PAed for 10 minutes - developing yet more rust.
week2closeup.JPG
-
27th Jul 2019, 05:48 PM #37.
- Join Date
- Nov 2008
- Location
- Perth WA
- Age
- 71
- Posts
- 6,458
Thank you for the progress report Bob.
My 1214 test bar shows only minor signs of deterioration. Not the orange coating I was expecting after a cold and wet week.
IMG_20190727_122444532.jpg
Michael suggested that I might PA the boring bars he made for me. So I just did.
IMG_20190727_133103684.jpg IMG_20190727_141010717.jpg
Similar Threads
-
Phosphating parts "experiment"
By Pete F in forum METALWORK GENERALReplies: 43Last Post: 17th Nov 2014, 10:46 PM -
A Saturday at the backyard foundry
By MuellerNick in forum THE FOUNDRYReplies: 64Last Post: 21st Aug 2012, 09:54 PM -
Professional black phosphating?
By neksmerj in forum METALWORK GENERALReplies: 4Last Post: 10th Aug 2012, 09:07 PM -
Backyard lineboring
By gallegos in forum METALWORK GENERALReplies: 9Last Post: 13th Dec 2010, 07:57 AM -
Backyard Foundry
By InkSpot in forum METALWORK GENERALReplies: 3Last Post: 10th Feb 2008, 07:40 PM