Mustang Forum

Technical & General Discussion Area => Technical - General => Topic started by: FickleLife on October 21, 2020, 03:09:56 PM

Title: Yellowing white walls
Post by: FickleLife on October 21, 2020, 03:09:56 PM
I bought these tyres https://www.huntsmanproducts.com.au/products/14-whitewall-205-75r14-suretrac-tyres-28mm-white-line?_pos=20&_sid=2088ced2f&_ss=r and it appears after about 100KM they're yellowing at the outer circumference.

Photos at https://imgur.com/gallery/E8FESfh - I think there's some white balance going on, they don't look as bad in the pics but in person they are quite dark at the outer circumference.

I've been in touch with Huntsman and they recommend to "super fine wet and dry or a caramel wheel will get that off and the discolour can be caused by tyre shine".

The tyre shine is unlikely as they were starting to yellow before any was applied, and wouldn't it yellow evenly as tyre shine is applied evenly?

And with the very fine sand paper - I've never lightly sandpapered any whitewalls nor used a caramel wheel as it's never been required - some solvol or nifty did the job for the last 20+ years.

Does anyone have any thoughts to the above?
Title: Re: Yellowing white walls
Post by: 67FBGT on October 21, 2020, 04:01:11 PM
That browning is an oil contamination from out of the tyres surely? Perhaps a thorough scrub clean of the whole sidewall and it will reduce over time?

On a tangent, what do people use to completely and finally remove that blue coating that comes on new raised white letters, I think it's a similar issue?
Title: Re: Yellowing white walls
Post by: Reborn67 on October 21, 2020, 04:15:54 PM
 Jiff or any of those cream paste cleaners...,
Title: Re: Yellowing white walls
Post by: fredm666 on October 21, 2020, 06:49:21 PM
I use this for my whitewall tyres:
https://shop.coles.com.au/a/alexandria/product/gumption-multi-purpose-cleanser?DM_PersistentCookieCreated=true

Itís pretty good
Title: Re: Yellowing white walls
Post by: Micks66coupe on October 21, 2020, 09:20:00 PM
I use steel wool soap pads on my white walls, just about all white walls need a freshen up now and then.
Title: Re: Yellowing white walls
Post by: Chris66pny on October 21, 2020, 09:31:38 PM
Mine were badly stained when I first got the car, it took some 800 grit wet sanding to get them white again. Now I just maintain them with jif paste and a stiff brush.
Title: Re: Yellowing white walls
Post by: FickleLife on October 22, 2020, 06:23:26 AM
Thanks, Iíll give all options people have posted a go
Title: Re: Yellowing white walls
Post by: pmb0186 on November 20, 2020, 10:01:43 AM
it will stop in a couple years, I use brake cleaner
Title: Re: Yellowing white walls
Post by: j hatzivalsamis on November 20, 2020, 12:21:07 PM
I fitted some new Maxxis recently and 1 of the tyres was like yours so i went back and they tried all sorts of methods to clean it but in the end they had a clean one and replaced it and fitted it up , from what i see you may have a battle trying to get them white.
Title: Re: Yellowing white walls
Post by: barnett468 on December 20, 2020, 04:01:06 PM
ok, discoloration of the side walls on newer tires is typically caused by the chemicals they blend into the rubber compound that is designed to leech (bloom) out to prevent the outside of the tire from premature dry cracking, and it can usually be removed with bleche white, which is designed exactly for that purpose.
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