jcwads
Well-Known Member
Does anyone have recommendations on where to get hold of Rydlyme in the South of France? I can’t seem to find anywhere…
Rydlyme in France
- Thread starter jcwads
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Just_sayin'
Well-Known Member
jrudge
Well-Known Member
Just buy hydrochloric acid in the supermarket. Here in Spain it is e1.25 for 1.5l. There is nothing spacial about rydlymy
westernman
Well-Known Member
Rydlyme is 5-9% HCL.
The HCL you get in the supermarket is probably 23%.
In France you can get it from LeRoy Merlin, Carrefour, Bricorama, ....
E.g. https://www.leroymerlin.fr/produits.../acide-chlorhydrique-mieuxa-1-l-53154136.html
The HCL you get in the supermarket is probably 23%.
In France you can get it from LeRoy Merlin, Carrefour, Bricorama, ....
E.g. https://www.leroymerlin.fr/produits.../acide-chlorhydrique-mieuxa-1-l-53154136.html
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jrudge
Well-Known Member
So dilute it 3 to 1 if that is important to you. Personally I like the stinger stuff as it works faster.
Bouba
Well-Known Member
Thanks for that....although whenever I see a marine website that shows their satisfied customers...and they are all superyachts... I often wonder if they would welcome my business
jcwads
Well-Known Member
What my engineer had said about Hydrochloric Acid, is that is very damaging to Aluminium which would be no good to a VP engine....
volvopaul
Well-Known Member
Correct your intercooler insert will suffer .
westernman
Well-Known Member
Then don't use Redlyme. Its principal ingredient is hydrochloric acid. But diluted to about 1/3 the strength of the stuff in the supermarket.
jrudge
Well-Known Member
I totally agree that rydlyme / hydrochloric acid has no place with an aluminium engine , however (a) VP engines are cast iron blocks and Moore importantly the salt water is only passing through the heat exchanger which is brass / copper so it goes no where near the engine only the raw water cooling circuit
In Spain HCL in the supermarket is 24% - so strong. Rudlyme is only 10%
In Spain HCL in the supermarket is 24% - so strong. Rudlyme is only 10%
jcwads
Well-Known Member
Literally just going with what my VP engineer recommends. He knows more than me...
Portofino
Well-Known Member
Ridlyme if you read the blurb has various buffers in it rendering its use on metal , all metals inc expensive AL safe .
Mentioned this before HCL acid from supermarket s even diluted will etch the metal surfaces .Once the crud’s dissolved it will start to nibble at metals .
So what was a smooth , copper , brass pipe stack , under the microscope is now a dog rough surface .This will crud up faster and actually be more adherent than before .Renders even more frequently flushes , longer or greater concentration you will end up running on a ever faster hamster wheel regarding chasing creeping coolant temps .
I can see this divides opinion ( good forum culture btw ) .
For me I am firmly stuck in the ridlyme camp .
Basically it’s got the acid strength to shift the calcium, alkaline , salt crud etc , but crucially the buffers to protect the metals it inevitably comes into contact with . That’s why engineers and pros recommend it .Tests have been done to verify .
Mentioned this before HCL acid from supermarket s even diluted will etch the metal surfaces .Once the crud’s dissolved it will start to nibble at metals .
So what was a smooth , copper , brass pipe stack , under the microscope is now a dog rough surface .This will crud up faster and actually be more adherent than before .Renders even more frequently flushes , longer or greater concentration you will end up running on a ever faster hamster wheel regarding chasing creeping coolant temps .
I can see this divides opinion ( good forum culture btw ) .
For me I am firmly stuck in the ridlyme camp .
Basically it’s got the acid strength to shift the calcium, alkaline , salt crud etc , but crucially the buffers to protect the metals it inevitably comes into contact with . That’s why engineers and pros recommend it .Tests have been done to verify .
westernman
Well-Known Member
"No additional ingredients which are hazardous to health or the environment."
I.e. the other ingredients are basically just colouring (presumably food colouring) .....
Portofino
Well-Known Member
Portofino
Well-Known Member
They use what’s classified as “ proprietary “ products. Which are not classed as hazardous to health so no need to put them on the HAZ chem or US eq literature."No additional ingredients which are hazardous to health or the environment."
I.e. the other ingredients are basically just colouring (presumably food colouring) .....
Many yrs ago i did enter into email co respondence with them about the buffers , they do exist but they are not” hazardous to health “and fall into some strange US privacy, secrecy thingy .
You will need to do you own due diligence , suggest drop them an email .
Anyhow the Ops got an address for a local ( Antibes ) to him supplier …..his original Q btw.
westernman
Well-Known Member
Something which protects metals from acid, but does not stop the acid attacking the molluscs and other crap, and on top of all that is completely non-hazardous to health in any way or quantity???
Sounds very much like snake oil to me. Or food colouring.
Portofino
Well-Known Member
You won’t finder stronger consumer laws than the US .They sue the arses off each other .
As said speak to them …..you won’t find better customer service either .
Portofino
Well-Known Member
Number 2 “ proprietary “
http://rydlyme.co.uk/images/Files/MSDS_Rydlyme_2013.pdf
http://rydlyme.co.uk/images/Files/MSDS_Rydlyme_2013.pdf
jrudge
Well-Known Member
The periodic table determines what HCL will attack - not mystery snake oil.
What is the reaction of copper in HCl?
HCl acid does not react with copper. The metals whose standard reduction potentials are lower than that of hydrogen react with non-oxidising acids like HCl and dil.H2SO4 , and displace hydrogen from them.
What is the reaction of copper in HCl? - Chemistry Q&A
HCL will attack aluminium. Sure if you dilute it then I will react more slowly but react it will. This is chemistry not a sales pitch.
What is the reaction of copper in HCl?
HCl acid does not react with copper. The metals whose standard reduction potentials are lower than that of hydrogen react with non-oxidising acids like HCl and dil.H2SO4 , and displace hydrogen from them.
What is the reaction of copper in HCl? - Chemistry Q&A
HCL will attack aluminium. Sure if you dilute it then I will react more slowly but react it will. This is chemistry not a sales pitch.
westernman
Well-Known Member
In your opinion what can you add to HCL to stop it attacking aluminium but does not stop it attacking the critters likely to be blocking your heat exchanger?
