final wash down before BC/CC, what do you use?

B

bomccorkle

I hopefully in a few days will be laying base, I know the car needs a full wash down to get all of the sanding dust and dirt off before then and had figured that dawn or something equivilant would be the best bet since you don't want any of the contaminants of a "car" wash. I had seen that sem made a soap specifically for this and was wondering if anyone had a preference or what to do and not do, or what works the best?
 
Dawn dish soap and water, rinse well, blow dry especially seams, then follow with SPI Wax and Grease Remover (spray on, wipe off) and let dry.
 
Excellent. Thanks 68 that was the plan just wanted to double check. I plan to was the say before and put it in the heated garage the day so I can make sire its dry
 
Any time you wash a car or part before painting, try to remove as much
water as you can with a clean towel afterwards before it drys on the car.
A lot of city water, like mine, leaves a lot of trace elements if it just evaporates
off of the surface. The water here will leave spots.
I use a squeegee and a dry towel to rid the water as fast as possible after washing
so it doesn't dry on the car.
 
jcclark;32555 said:
Any time you wash a car or part before painting, try to remove as much
water as you can with a clean towel afterwards before it drys on the car.
A lot of city water, like mine, leaves a lot of trace elements if it just evaporates
off of the surface. The water here will leave spots.
I use a squeegee and a dry towel to rid the water as fast as possible after washing
so it doesn't dry on the car.
Click to expand...

I totally agree with the above, or just blow off and use spi wgr 3 times is what we do with stuff that has been sitting around...we also use red pad to scrub first time over
 
Excellent thanks guys. Just sprayed my last round of 2k with any lick will be sealing and on to base clear over the holiday weekend
 
A big time car collector from Arizona purchased a land development near Rockford Bay on Lake Couer d Alene in northern Idaho. He had a plumbing company install a full blown commercial DI water system for washing his cars.

Unlike Mr Pratt , most of us have much shallower pockets, but we can still use DI water to rinse our cars with.

There are a couple ways to do this, cheapest is to buy a new garden sprayer and fill it with Distilled Water ( different process than DI, but same result) and use it for a spray rinse after washing. Cost a couple dollars a wash to use.

Easier but more expensive is a DI system that hooks to your water source. A popular unit is the CR Spotless DI20. Best pricing I have seen is at Costco online, currently $369 shipped to your door step.

CR-SPOTLESS-De-Ionizing-Spotless-Water-System
 
Can I ask if there is a specific Dawn soap that you guys use? I'm having trouble finding any close to me so may have to buy some online in the US and have sent to Aus.
 
Ash;32814 said:
Can I ask if there is a specific Dawn soap that you guys use? I'm having trouble finding any close to me so may have to buy some online in the US and have sent to Aus.
Click to expand...
Ash,
Proctor & Gamble makes Dawn dish soap for the US market. They also make an equivalent called Fairy for the UK market. I understand Fairy dish soap is now sold in Australia (since 2011). They even have a web site that has a "Where to Buy Fairy" link. When I clicked on the link, it took me to Coles online so it looks like your local supermarket carries it. As I recall, there are Coles everywhere in Australia (the Manly store had the best takeaway chips I've ever eaten).
8462327.jpg

http://shop.coles.com.au/online/national/fairy-dishwash-liquid-8462327p
 
That's excellent, Bob. That is great to know, thank you!
I think even our small country town supermarket might have the Fairy product. I'll check when I go back tomorrow otherwise I'll visit a Coles. And yes, they are everywhere here. The closest to me is about 100km's but that's still ok as I venture that way every so often.

Just to double check, it has to be dish soap? Any variation is ok?

I was in Manly on the weekend. Took the kids there to see the aquarium. Was a great day out! Missed the fish and chips but had a great chicken burger.
 
Ash,
Yes, liquid dish soap made for hand washing, not dish washing machine detergent. I doubt that Fairy comes in as many variants as Dawn but you want the transparent stuff -- the plainer the better. One variant of Dawn contain Olay skin lotion, which should be avoided.
 
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Great, that clears it up. Thanks, Bob, much appreciated :encouragement:
 
Got to the supermarket this morning and picked up some of the Fairy Original dishwashing liquid. First thing that got me is it is green where I noticed the Dawn original was blue. So I looked for what the ingredients were and there are a few differences.

This is what Dawn has in it:

http://www.pg.com/productsafety/ing...l_Lemon_Dishwashing_Ingredient_Disclosure.pdf

Ultra Dawn ® Original and Lemon scents

Water
Sodium Lauryl Sulfate
Sodium Laureth Sulfate
Lauramine Oxide
Alcohol Denat.
Sodium Chloride
PPG-26
PEG-8 Propylheptyl Ether
PEI-14 PEG-10/PPG-7 Copolymer
Phenoxyethanol
Methylisothiazolinone
Fragrance

And this is the Fairy:

http://www.info-pg.com/eng/result

Put this code into the search:

99626000

FAIRY HAND DISH LIQ ORIGINAL

AQUA
SODIUM LAURETH SULFATE
LAURAMINE OXIDE
ALCOHOL DENAT.
C9-11 PARETH-N
PPG
SODIUM CHLORIDE
PEI-14 PEG-10/PPG-7 COPOLYMER
SODIUM HYDROXIDE
ALCOHOL
PHENOXYETHANOL
PARFUM
METHYLISOTHIAZOLINONE
COLORANT
COLORANT

I tried to search back as I remember Shine talking about key ingredients but I can't find it. Is there enough variation in the two products for it to be different? Does the Fairy have something it shouldn't or is it missing something? Sorry if I'm looking too much into this, just wish to make sure one of the early steps I make in metal prep is not stuffed up so that I have to redo the lot.

Cheers
 
Hi Ash,
Hopefully someone with more knowledge than me will chime in. I found the same information, along with some caveats that Procter & Gamble doesn't release all of its ingredients (trade secrets or something). Taking the two ingredient lists and eliminating the identical ingredients, there are only a few differences.

This is what Dawn has in it that isn't in Fairy:

Ultra Dawn ® Original and Lemon scents

Sodium Lauryl Sulfate
PPG-26
PEG-8 Propylheptyl Ether

And the ingredients in Fairy not found in Dawn:

FAIRY HAND DISH LIQ ORIGINAL

C9-11 PARETH-N
PPG
SODIUM HYDROXIDE
ALCOHOL
COLORANT

Those last two ingredients in Fairy shouldn't matter much. Both products list "Alcohol Denat." so having "Alcohol" as an ingredient in Fairy seems redundant. Obviously both products have colorant even though Dawn doesn't list it. Dawn also comes in yellow and green as well as an almost clear version.

These comments are based on the descriptions in the US Department of Health and Human Services Household Database (http://householdproducts.nlm.nih.gov/index.htm)

Dawn-Unique Ingredients:
- Sodium Lauryl Sulfate and Sodium Laureth Sulfate are inexpensive and very effective foaming agents. Not sure why Dawn ingredients list contains both.
- PPG-26 is an oleate (a salt or ester of oleic acid, which is an odorless, colorless fatty acid).
- PEG-8 Propylheptyl Ether is used to reduce surface tension and aid in emulsification.

Fairy-Unique Ingredients:
- C9-11 Pareth-N seem to be a group of Alcohol Ethoxylates, which are non-ionic surfactants frequently used for hand dish liquids, shampoos, foaming control agents, textile applications, and other specialty surfactants.
- PPG seems to be an ingredient without a number. I suspect the PPG listed under the Fairy ingredients is the same thing as the PPG-26 in Dawn but I'm not sure.
- Sodium Hydroxide is the stuff my grandmother used to turn bacon grease and other animal fats into harsh brown soap. Pretty strong stuff.

The real test is to wash something with Fairy and rinse it off. If the rinse water sheets and doesn't bead up, you should be good to go. That's pretty much what Dawn does. If you check out the detailing sites, they warn against using dish detergent to wash your car because it strips off the wax and leaves the paint vulnerable. Pretty much exactly what we want to do to prep for painting.
 
Nice work, Bob. That breaks it down very well.

The Sodium Hydroxide is spooking me a bit. Hopefully someone with a background of knowledge might chime it like you said.

I expected it to basically be a renamed and relabeled product. But there are enough differences here to really make me question it. I'll give the test a go on some scrap car parts and see what it does.

Am thinking though it might just be safest to put the Fairy in on the kitchen sink and buy something like this. That way there is no second guessing it.

http://www.ebay.com/itm/3-Dawn-Orig...914?pt=LH_DefaultDomain_0&hash=item5d4102fb12
 
What do you use to wash/scrub it with? Just a rag or a Scotch-brite?
My Corvette (71) has been in bare fiberglass for a couple of years now.

KO
 
All I know is since I started using Dawn, about 30 yrs ago,
I don't use wax and grease remover at all.

P.S. Never get bare fiberglass wet if possible.
 
Bob Heine;32852 said:
The real test is to wash something with Fairy and rinse it off. If the rinse water sheets and doesn't bead up, you should be good to go. That's pretty much what Dawn does. If you check out the detailing sites, they warn against using dish detergent to wash your car because it strips off the wax and leaves the paint vulnerable. Pretty much exactly what we want to do to prep for painting.
Click to expand...

If I may add something to this, it would be to do as Bob suggests, then dry it with clean paper towels and paint it. That is what will tell you how truly free of contamination the surface really is.
 
sodium hydroxide is a great cleaner degreaser. it breaks down anything organic.

on another note, i like anything that doesnt have ppg in it :)
 
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