What should I use....

[Sir Tigger KC]

.... to clean the protective coating off of new brake discs?    I have petrol and white spirits here.  Will they do? 

TIA! 

[Migv6 le Frog Fan]

Normally brake cleaner, but I would imagine petrol will be fine. I think white spirit may ;eave a slighty oily residue ?

[Viral_Jim]

Think I used cellulose thinners last time, but only because I had them to hand. As an alternative I would imagine spray oven cleaner would do the job, designed to cut grease after all

[STEMO]

Spray a bit of lubricating oil on them and report back.

[Field Marshal Dr. Opti]

This thread reminds me of when I was sixteeen. My friend owned a blue and brand new 1976 Suzuki AP50 sports moped which he loved with the exception of a front drum brake that would constantly squeal when applied.

Just for a joke myself and another friend said that Castrol LM grease liberally smeared over the front brake shoes would stop the annoying 'squealing'

Didn't think he'd actually give it a go but to be fair it did stop the squealing.

[Nick W]

Normally brake cleaner, but I would imagine petrol will be fine. I think white spirit may ;eave a slighty oily residue ?

So does petrol.
A can of brake cleaner is only a couple of quid, and is probably 'best'
I use thinners.

[Migv6 le Frog Fan]

This thread reminds me of when I was sixteeen. My friend owned a blue and brand new 1976 Suzuki AP50 sports moped which he loved with the exception of a front drum brake that would constantly squeal when applied.

Just for a joke myself and another friend said that Castrol LM grease liberally smeared over the front brake shoes would stop the annoying 'squealing'

Didn't think he'd actually give it a go but to be fair it did stop the squealing.

I did exactly the same to a bloke with a Honda CG 125 with a squealing front disc. He went through a hedge. 

[frostbite]

carb cleaner can be used also, but evaporates quickly

[Mr Gav]

carb cleaner can be used also, but evaporates quickly

I think it the same stuff as brake cleaner TBH, I`ve always used either and as you say it evaporates very quickly 

[frostbite]

Similar stuff, I'm sure you cant use carb cleaner on friction lining because of the adhesive

[Webby the Bear]

Brake clean. Get it in a can. Or 5l tub and pump bottle.

[Webby the Bear]

And while you're there get a tube of silicone paste for your slide pins.

and if you want to use something better than the shite copper slip get some Ceratec. Not sure if it's a Pagid own brand or their version of a type of grease called Ceratec lol but I've used this for special people's brakes (i.e. my car....every other fekker gets coppa jism😂) as it stays like jism as opposed to drying up.

[frostbite]

I have 3 sachets and a tube of ceratec, its a mintex brand

[deric3r]

I've always used brake cleaner.