so after taking my front suspension out, i decided to start cleaning th wheel well. im out there with water right now and scrubbing. im finding this brown "wax goo" that does come off with a little scrubbing (by little i mean alot). what is this stuff? it is under the dirt and seams to help the dirt stick. also when i get it down to the original black paint/under coating, what is the best way to re paint?

thanks alot guys!

Duc

 

I used Castrol super clean under the wheel wells, start with 50/50 strength and move up in concentration until it works. Some may recommend Simple green.

 

Yea, I used simple green with pretty good effect, but I think more than anything it is the elbow grease that makes it all clean in there!

 

P21S Total Auto Wash works really well and is safe to use.

 

i used some grease lightning, that seams to get the road grim off, but i am using brake clean and acitone to get the "brown" goo off. lots of elbow grease that is for sure. what should i paint it with to make it black again? just some primer and gloss black paint?

 

Be really careful with acetone as it will remove the factory paint. It sounds like you may have already done this based upon your last question. Not sure what the proper procedure is for the undercoating

 

Get in touch with flash 928. He has a product called Brown Royal. The stuff is amazing! Nothing short. I had stuff on my wheels that would not come off, no matter what I used. I was new to the forum and Joe Flash was too. I went by his shop, he sell's commercial car cleaning products. I should him my wheels and he said Brown Royal will take that off. He sprayed some on, left it on for 30 sec's and hosed it off, HOSED IT OFF! They looked brand new! My car also had a lot of Brown stain from sprinkler waterwhich I could not get off and it hosed right off. The stuff is amazing.

He has a video on utube and it works like the video. A must for the easiest cleaning you will ever find and I am 50 and have been cleaning wheels since 76!

Stephen

 

Brown Royal has all the telltales of being a caustic degreasing solution. Most caustics are great for degreasing, and at least initially they will make most stuff look great. Royal Brown has a prominent 'non-acidic' claim, yet is also sporting a 'Harmful or fatal if swallowed' danger label at the same time. I can't see any more of the warnings in the product pictures on a couple websites. Generally, if a product has all the rubber-glove, face-shield, dangerous-fumes, fatal-if-swallowed warnings, it deserves a second careful look to make sure it's really safe enough to use on the car. In my humble opinion anyway. Anyway, look carefully, please.

 

Just finished the wheel wells today on the '81. Simple green would not touch it at all (po had painted/undercoated). Finally used the cheap carb cleaner from wallmart and with a nylon brush and steam cleaner it looks pretty good now (car is white) Being you have a black car might I suggest the spray on undercoating from autozone. I used this for a '71 dodge charger and it works very well. Cover anything that you do not want coated and if over spray get it off before dries, as it will be very difficult when dried.

 

ya im going to use the 3m under coating. if memory serves me, i should not need to paint. what ever this brown goop is brake clean works wonders. got one well done. new will be tomorrow. then the rears. but yes, under coating and maybe some black gloss paint. im just not sure yet.

 

Hi Dr Bob,

My name is Joe and I am the manufacturer of Brown Royal non-acid cleaner. I am also a Porsche enthusiast and a forum member. Let me first say that you are incorrect about Caustic (Sodium Hydroxide) in the formulation of Brown Royal cleaner. I will not go into specifics, but lets just say Brown Royal is made up of mostly water and surfactants and has only a few characteristics of other degreasers. I would also like to say that we post warnings on our labels to protect the consumer and to also protect us from liability if the product is used incorrectly.

The is no degreaser in the world that you can safely take inside of your body internally without causing danger to yourself. We recommend using eye protection and rubber gloves when using our product. Most people never do. I know women who use Brown Royal without wearing any type of protection. If it gets on your hands for a long period of time it will dry out your hands like any other alkaline cleaner. A little moisturizing creme will do the trick. Brown Royal is very concentrated and that is another reason for the warning label. Every cleaning product must have safety warnings. Its the law. OSHA.

I dont believe its wise to compare a cleaning agent used on a hard surface to the human body. There are many skeptics out there that cant believe Brown Royal works as well as it does. Its no trick and its not a scam. The videos you see on youtube are true and not fabricated. We have created a cleaner that works better than any other cleaning product on the market. In other words, do not knock something, until you try it. Thanks for your time.


Joe Carollo
Flash Auto Detail Products

 

What about soap for doing the dishes. Excuse if my english is incorrect I've usually eat out when abroad but I think you guys understand what I mean

At least in Sweden there are some good ones and some bad, need I say you need to use a good one.. I found this to beat all the professional degreasers, alloy-cleaners etc.

 

I used Simple Green and mineral spirit with a tooth brush in the really bad spots. I've heard you want to make sure it's really dry before applying undercoating. Otherwise, it traps the moisture and leads to rust/corrosion. Never used it, but it make sense...

/ Bruce

 

the stock undercoating is just fine, but for some reason this brown junk covers everything. it must have been added at some point by some one. the stock paint over the under coating is trash so im debating of adding more undercoat, or to prime and paint.

 

From Wiki...."Cosmoline is the trade name for a generic class of rust preventatives, conforming to MIL-C-11796C Class 3, that are a brown colored wax-like mass; have a slight fluorescence; and have a petroleum-like odor and taste....." All new 928s got a liberal spraying at the factory which means that technically to be a 100% original car it must have the cosmoline Also the rubberized factory undercoating under the paint is far superior to any spray can crap.....