Washing up liquid.

[rorywquin]

It will clean the car, but the high salt content and cleaning chemicals will scratch the clearcoat and this is where the dullness comes from. It is fantastic for cleaning prior to sanding paintwork, and very good, used neat, for removing polish etc from rubbers and plastic trim..the grey bits... (use with a toothbrush or similar) Much easier on paintwork than the Traffic Film Remover(acid) used in most car washes.

How would the amount of salt and chemicals in say 50ml or 100ml of dish liquid diluted in a bucket of water, scratch paintwork that is designed to be hard wearing and chemical resistant? Just asking!

However, for the price, I'd just buy the 'correct' stuff!

 

[brick10]

Have you used it yet buddy ?

No, not likely to.

 

[Wighty]

No, not likely to.

I'll try it at some point , I'll let you know

 

[Xtractorfan]

How would the amount of salt and chemicals in say 50ml or 100ml of dish liquid diluted in a bucket of water, scratch paintwork that is designed to be hard wearing and chemical resistant? Just asking!

However, for the price, I'd just buy the 'correct' stuff!

Just have a look at the paintwork on any car that has been constantly brushed and sponge washed (a bright sunlight day for best results) and you will see the swirl marks....as we tend to follow the circular arc of our arm swing.... salt is an abrasive and over time these micro scratches gradually cover the paintwork and dull the shine.

 

[L John]

I think the salt is completely dissolved, not in crystal form, so scratching would usually be from dragging dirt/grit over the panel when washing.

 

[Frontstep]

For amusement here's the ingredient list for car shampoo from Tesco.

• TESCO SHAMPOO WITH WAX

Information
Ingredients
5% to 15% anionic surfactant, less than 5% amphoteric surfactant, less than 5% nonionic surfactant, less than 5% sodium chloride, less than 5% citric acid, less than 5% polyethylene, Formaldehyde, limonene, geraniol, citral, citronellol

 

[Morethanpolish]

So what do you wash your hair with ? A product made for the job or some random foamy chemical found lying about ?
Ever noticed how combined hair and bodywash products don't leave your hair looking good ? Its because they're designed to remove grease and oils (sweat) from your skin. They will strip your hair of the oils it needs. Best buy a decent shampoo.
I honestly dont think a tenner for a bottle of dedicated car shampoo which will last a year is too much to safely clean a surface that will cost several thousands to replace.