ghostlymoron
Well-Known Member
I've always had reasonable success with WD40 but have read on this forum that this is not really good for freeing bearings, shackles, blocks etc. What's the best stuff and where to get please.
Penetrating oil/fluid
- Thread starter ghostlymoron
- Start date
sarabande
Well-Known Member
Castrol DWF
http://www.castrol.com/castrol/sear...=&cp=1&ra=&fl=&kw=penetrating&categoryId=3245
Good motor factors only, as it is a bit specialist.
http://www.castrol.com/castrol/sear...=&cp=1&ra=&fl=&kw=penetrating&categoryId=3245
Good motor factors only, as it is a bit specialist.
Bilgediver
Well-Known Member
Wake up in the back!!!!!!!!!!!!!!! It is PLUS GAS....
WD 40 is NOT a penetrating oil but in this inclement weather it is great for
spraying on the HT leads etc when engines are affected by damp.
Plus Gas can be obtained from many sources including Amazon...
Google is your friend.
Here is another
http://www.lawson-his.co.uk/scripts/details.php?cat=Penetrating Oils&product=30700
pvb
Well-Known Member
Yes, Plus Gas is good.
Alpha22
Well-Known Member
+1 for Plus Gas.
I used it all the time when taking apart a 1915 steam roller for restoration. Some bolts untouched for 90 years!!!
I used it all the time when taking apart a 1915 steam roller for restoration. Some bolts untouched for 90 years!!!
ghostlymoron
Well-Known Member
Thanks Bilgediver - I must pay attention. Plus Gas - that's the stuff I was thinking of. Haven't seen it on the shelves recently. (later edit) I see it's now available in AEROSOL form so now I can easily use twice as much as I need.
Alha 22 - I hadn't got anything so ambitious as a steam roller in mind.
Alha 22 - I hadn't got anything so ambitious as a steam roller in mind.
Last edited:
CAPTAIN FANTASTIC
Well-Known Member
Use either plain paraffin or dilute engine oil to 80% paraffin
morgandlm
Well-Known Member
Penetrating oil
Basic mineral oil, diluted in diesel. It smells and drips but will penetrate rusty threads like a good 'un. It has the advantage that both ingredients are generally available on most boats.
Morgan
Basic mineral oil, diluted in diesel. It smells and drips but will penetrate rusty threads like a good 'un. It has the advantage that both ingredients are generally available on most boats.
Morgan
G12
Well-Known Member
Plus Gas, they do one with graphite in it too. That's the better one as the graphite platelets provide dry lubrication as well.
Edit, Do not get penetrating oil on engine oil seals or some engine mounts. It will make them fail.
Edit, Do not get penetrating oil on engine oil seals or some engine mounts. It will make them fail.
Alfie168
Well-Known Member
My local engineering company gave me a can of what they use. Its called Penol made by Chemodex and was certainly very good. Plus Gas is fine also, but as said elsewhere WD40 isn't. WD stands for Water Displacement....its a big clue
http://www.chemodex.co.uk/
Tim
http://www.chemodex.co.uk/
Tim
SAMYL
Well-Known Member
Second that, cheapest and best option you will get.
WD 40 is OK but not great. Do NOT use it as suggested on the can for preventing rust, it will not work. It washes off in time with water leaving a squeeky clean surface which rusts beautifully and for that reason I believe it is banned on a lot of navy's ships.
Old Troll
Well-Known Member
Old Troll
Bills Tool Store in Glasgow. Try there Barra brand loose Oil. Very good/ Very cheap. Found it worked well.
Bills Tool Store in Glasgow. Try there Barra brand loose Oil. Very good/ Very cheap. Found it worked well.
VicS
Well-Known Member
Another vote for Plus Gas
WD 40 is a water displacing fluid.
Castrol DWF is also de-watering fluid but I've only ever seen it once ... when Castrol gave it away with cans of oil!
I also have couple of aerosol cans of something called "Yield" that I got from work years ago. NLA as far as I know but if you see it , get it. I reckon its even better than Plus Gas
WD 40 is a water displacing fluid.
Castrol DWF is also de-watering fluid but I've only ever seen it once ... when Castrol gave it away with cans of oil!
I also have couple of aerosol cans of something called "Yield" that I got from work years ago. NLA as far as I know but if you see it , get it. I reckon its even better than Plus Gas
Seajet
...
I agree NOT a penetrating oil though can help in not too drastic cases - WD40 apparently got its' name as
Water Displacement, the 40th 'recipe' tried by the makers...
Water Displacement, the 40th 'recipe' tried by the makers...
Conachair
Guest
Though i have found wd40 to be handy for starting reluctant diesels, a bit on a rag in the airfilter intake.
Zagato
Well-Known Member
Yes Plus Gas is what you are looking for. A recent experiment out of a handful of products showed WD40 was the worst for penenetration but then it was designed as a water repellent and not for penetration.
Once a product is known to all through heavy advertising then other products, though even better, just don't get a look in. The shops will stock what people ask for
It's a bit like Waxoyl & Dinitrol. Waxoyl is a substance that can slip down the side of metal not covering anything especially when applied in hot weather and it needs retreating as it says on the can every two years
Dinitrol on the other hand is a thick black goo that has been used by car manufacturers for years (used to be called Supertrol!) and penetrates and stays on for life. I believe Waxoyl are now making a product that is similar to Dinitrol but it would be better to buy the original stuff.
Once a product is known to all through heavy advertising then other products, though even better, just don't get a look in. The shops will stock what people ask for
It's a bit like Waxoyl & Dinitrol. Waxoyl is a substance that can slip down the side of metal not covering anything especially when applied in hot weather and it needs retreating as it says on the can every two years
Dinitrol on the other hand is a thick black goo that has been used by car manufacturers for years (used to be called Supertrol!) and penetrates and stays on for life. I believe Waxoyl are now making a product that is similar to Dinitrol but it would be better to buy the original stuff.
