DIY alternative to WD40 ?

[CompoSimmonite]

Recently we had, in the thread on the 101 forward control project, homemade penetrating oil from ATF and acetone.
I use WD40 mainly to stop surface rust on bare metal so wonder if anyone had a recipe for something similar which is water thin that can be applied with a trigger pump spray ?

 

[The_Yellow_Ardvark]

That is a good mix, used it for years.

But WD40 us not a true penetrating oil.

If you got time (space as well) I use to soak a mixture my grandfather showed me.
50% diesel
30% old engine oil.
20% paraffin.

You can either soak it, or wrap a cloth round the fixing and wait.
I used to know some one who rebuilt old cars.(pre WW2) he had a large tank with the same mix in and some old water heaters.
Worked a treat, but you needed time.

 

[CompoSimmonite]

I don't used WD40 as a penetrating oil as waste of time for that. However it's great to mist over my lathe in winter, bare metal, derusted parts etc before they are cleaned and painted.

 

[octo0072000]

duck oil cheaper than WD40 seems the same

http://www.ebay.co.uk/itm/SWARFEGA-...980438?hash=item25bbe29c16:g:Zv0AAMXQqBxRIBWU

 

[Gareth J]

Smith and Allen do "dw40" (de-watering40) by the gallon for much less than WD. Smells weird

 

[brightspark]

Smith and Allen do "dw40" (de-watering40) by the gallon for much less than WD. Smells weird

ive got some I don't think its quite as good as wd but ok for most stuff

 

[armalites]

If you buy WD40 in a 5L it can be had for £22, if you want something a bit more oily for protecting stuff octo mentioned Duck Oil, I find it much better then WD40 for that. Again buy it in 5L but generally it is more expensive I've found

 

[Kent]

If stuck I draw off a little kerosene from our tank. Home made? Well I think that's as near as you get unless you have a refinery or similar

 

[Welderpaul]

Having dismantled a 1960's tractor with literally hundreds of seized bolts, heat is far quicker, cheaper and more effective than release fluids.

 

[Bill Edwards]

Duck oil in 5l containers is also my suggested alternative, it's not that expensive even off eBay (and usually comes with a sprayer too). Plus I think it smells good!

Having dismantled a 1960's tractor with literally hundreds of seized bolts, heat is far quicker, cheaper and more effective than release fluids.

For seized up items this is true, nothing else comes close.

 

[ewmIreland]

Aldi or lidl sell 'w5' penetrating type spray oil.about 1/3 the price of wd.its okay

 

[123hotchef]

plus gas works about the best out of all the crap i have tried but map gas is better

 

[MCKDAVID]

as above, +1

"heat is far quicker, cheaper and more effective than release fluids."

+11111111111 fully agreee, but would go one further, heat with plus gas, definitely gets the job done. WD is great for keeping water out but bugger all use for releasing nuts's n bolts....


based on more than 25 years in the north sea oil / gas / fishing boat environment, where EVERYTHING corrodes until solid !!.....

 

[123hotchef]

plus gas smells great with map gass

i just brought some freeze spray to try after the heat for the most stubborn worth a shot

 

[brightspark]

providing u don't damage any seals . u cant always use heat

plus gas works about the best out of all the crap i have tried but map gas is better

 

[MCKDAVID]

one extreme to another, heat to cold, if that doesn't shift it then you're already screwed generally.... then the next best option is you need spark erosion.... proper kit.... never failed yet, just not cheap......

 

[doubleboost]

Plus Gas "Oxygen plus Acetylene (Propane)
Always works

 

[MCKDAVID]

as above..

amen..........

 

[tinman123]

is the duck oil better than the wd for keeping the water out then so?, is it a thicker film or whats the gig.

i use 50/50 mix of used transmission oil and diesel for the mill and its gear, keeps the water out but i dont mind buying the dearer stuff if its a good job, or am i as far on with the fairly cheap option im on at the mo.

 

[Bill Edwards]

is the duck oil better than the wd for keeping the water out then so?, is it a thicker film or whats the gig.

i use 50/50 mix of used transmission oil and diesel for the mill and its gear, keeps the water out but i dont mind buying the dearer stuff if its a good job, or am i as far on with the fairly cheap option im on at the mo.

I think (from my own use of it) that duck oil is a little better than wd40, I rate it very highly.
As to whether it's better than your mix I don't know as I haven't tried it, though I would expect your mix to work quite well.