Michael Koblic
2007-03-06 03:22:20 UTC
I thought today I would test the cleaning qualities of both WD40 and G96.
I found some really grimy, rusty garden shears. I applied some copper (from
a wire) to both blades and some lead (fishing weight) by rubbing it on
really hard. Then I sprayed one blade with WD40, the other with G96. I left
them for 1 minute, then scrubbed with a bronze brush, plastic steel wool and
a cloth. I tried the same on the reverse side in reverse order. I repeated
the whole procedure twice.
Results:
1) The copper and lead came off with both agents very quickly when using the
brush. They would not come off just using the cloth. I really did not see a
significant difference between the two.
2) There was a slight tendency to remove more rust with G96.
From the previous plastic tray-and-washer test:
1) Both agents evaporated after about 3 days leaving a layer of oil which
persists over a week. The oil left behind by the WD40 seems to have higher
viscosity as judged by the washer sticking to the tray.
Discussion:
1) The obvious flaws of the shear test are numerous. It would have been nice
to perform the test in a "double blind" fashion. But that would mean
involving other people and possible comments on my sanity vis-a-vis wasting
my time with this stuff.
2) Although every effort was made to treat both shear blades the same, there
is no guarantee that the degree of rusting and dirt was the same on both.
3) Both WD40 and G96 are efficient in removing lead residue and copper.
There seems to be a marginal benefit for the G96 where rust is involved, but
see (2)
4) The oil in WD40 appears more viscous than in G96. The alternative
explanation is just that there is more of it per volume of spray or that I
just failed to apply equal amounts of the product to both areas. This
finding may be relevant to gun use: the more viscous oil may impede smooth
working of small gun parts.
5) The popular belief that WD40 dries out completely should be seriously
doubted.
For my part, I shall avoid using WD40 on my guns in future because of the
viscosity issue. It would be interesting to try some of the newer similar
products such as Hoppe's Elite in the same fashion. they are, however,
hellishly expensive.
I found some really grimy, rusty garden shears. I applied some copper (from
a wire) to both blades and some lead (fishing weight) by rubbing it on
really hard. Then I sprayed one blade with WD40, the other with G96. I left
them for 1 minute, then scrubbed with a bronze brush, plastic steel wool and
a cloth. I tried the same on the reverse side in reverse order. I repeated
the whole procedure twice.
Results:
1) The copper and lead came off with both agents very quickly when using the
brush. They would not come off just using the cloth. I really did not see a
significant difference between the two.
2) There was a slight tendency to remove more rust with G96.
From the previous plastic tray-and-washer test:
1) Both agents evaporated after about 3 days leaving a layer of oil which
persists over a week. The oil left behind by the WD40 seems to have higher
viscosity as judged by the washer sticking to the tray.
Discussion:
1) The obvious flaws of the shear test are numerous. It would have been nice
to perform the test in a "double blind" fashion. But that would mean
involving other people and possible comments on my sanity vis-a-vis wasting
my time with this stuff.
2) Although every effort was made to treat both shear blades the same, there
is no guarantee that the degree of rusting and dirt was the same on both.
3) Both WD40 and G96 are efficient in removing lead residue and copper.
There seems to be a marginal benefit for the G96 where rust is involved, but
see (2)
4) The oil in WD40 appears more viscous than in G96. The alternative
explanation is just that there is more of it per volume of spray or that I
just failed to apply equal amounts of the product to both areas. This
finding may be relevant to gun use: the more viscous oil may impede smooth
working of small gun parts.
5) The popular belief that WD40 dries out completely should be seriously
doubted.
For my part, I shall avoid using WD40 on my guns in future because of the
viscosity issue. It would be interesting to try some of the newer similar
products such as Hoppe's Elite in the same fashion. they are, however,
hellishly expensive.
--
Michael Koblic,
Campbell River, BC
Michael Koblic,
Campbell River, BC