How Much Soda Would You Use?

Mikepb

Hi I am doing a 72 challenger this friday .For the guys that do cars what is the average time and amout of soda used in a car the size I am doing?
How many pounds of soda?
How man hours?
What kind of car?
What do you use to wash car down after before paint?
I would really appeciate the info so I do take enough soda.

blastserv

your paint companies will not warranty a paint job if there was soda used...

wash it down?i would say anything that is supposed to be washed down after blasting especially with vineagar/water solution is the wrong media, especially on bare metal.

with that said you are asking way to vague of questions on all of your questions.

you need to state the obvious like what EXACTLY you are blasting on the car.like inside outside under side engine compartment trunk.sorry if i sound like i am hitting you with too many questions but...same thing goes with typical phone call from a customer and if you want exact you have to give exact...

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killzoneq2

I don’t soda blast but a lot depends on compressor/nozzle/hose size. For example: If you are using a small compressor you are losing velocity and production time suffers. In that situation you will use lots of soda. Im pretty sure the same applies to soda as other medias.

CO2Solutions

Out of curiousity,why is paint not warrantied after soda blasting? and what paint companies? thanks...

killzoneq2

I would think because of the smooth surface it leaves, almost like a polished surface. There is no abrasive surface for the paint to adhere to. I’m no expert but have painted a car or two in my days and know the value of getting a good surface that paint will stick to. I would think that you would want to sand prep the raw metal prior to painting after the soda blasting. I'm kinda curious myself.

CO2Solutions

yeah, that makes sense...I'm fairly uneducated in the world of painting...

blastserv

nothing to do with the surface smoothness...the fact the soda is in all the cracks and is alkalyne and is not gonna allow the paint to stick 100%.dupont is the main one and i just talked to a buddy in the business and he was told ppg also.

you are not really giving your customer any value if you charge them what you have to charge them for a soda job then the car has to be eentirely sanded.think about if you just paint 1200 to have a car blasted and then had to do the same work you just paid for over again.on top of the fact that is not made for the purpose of blasting cars.

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gale

Hard to say how much soda you need, all cars and coatings are different.
Just a fyi, the surface does have to be prepped after blasting.
You could try this-
http://holdtight.com/index.htm

I have not encountered one car or restoration shop that has not sanded on a majority af the cars surface, blasting just saves them time. There are very few cars with straight metal without some faring/filler needed.

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CO2Solutions

What's (if any) is your experience with Super K blasting media? I guess its Potassium Sulphate and eliminates the issues that you have with Soda after blasting a vehicle? any body have experience? cost for media etc.?

Mikepb

I did the 72 charger on Friday I used 8 bags of soda It took 5 hrs to do.I did the engine compartment inside the body and the inside of the trunk as well as the rear fenders and roof also the bottom of the doors. In the trunk and front inner fenders I removed the rock guard. It went very well. The owner was really happy.
Mike

Blast&Coat

how much did u charge the guy if u don mind me asking?

blastserv

i have a pallet of super k from the purchase of my set up from surface tek.i use it on odd jobs here and there.it is great for blasting stainless and it doesnt ruin the surface or change it at all.

it explodes on contact and turns to dust when it is used so it is just like soda as in it is not reusable and is expensive like soda.look up starblast and try it...it is super versatile and very cost effctive.

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CO2Solutions

Thought I'd try that 'THANKS' function they have installed on this forum...
Anyways, thanks for the input!

BLASTPRO

we can use anywhere from 8 to 12 bags of soda per car depending on a number of different variables. I tell my customers that our charge is 165 per hr with soda and it really just ranges from there. Typical exterior only with minor issues will run about 1000 to 1800 bucks, as you can see there is quite a curve.

blastserv

are all you guys educating yourselves on the problems with soda on cars?i have asked my distributor if any one is really aggressivley pushing soda on cars anymore and there exact qoute was"it seems that the only people using soda are the people not in the know" and" our sales are slowing hugely on the fact that it is improper to use soda for the auto restoration business and we are trying to educate people on that fact"they sell all kinds of media and dont make their living on soda only.

i am not trying to change anyones business for the bad i am just trying to state on here that alot of the world has been going off of misinformation about soda and its effects.

for instance...i sprayed a transmission case with it and i have it sitting in a shed at my shop and it was only done around 2 weeks ago and it was super clean when i finished ...now it is super chalky and growing all kinds of corrosion on it...not really something i would want as a customer...

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edjohnson

So Blastserv,
What is the best media to use on cars, and does that hold true on boats as well?

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blastserv

i would say in my opinion the best media for cars is starblast used carefully...due to the fact that after you have blasted the car it does not need washing of any sort for alkalynity problems other than dust removal also it does not need to be sanded again in order to remove the rust that soda and plasic leave behind...the best thing to do is put a tar and grease remover(pre-clean) in a paint gun and start at the top and wash it down to remove dust and add etch primer.plastic and soda both give your customer a second job,you mine as well not blast the car and just hit it with a d/a. i also mentioned carefully because there is also possiblilty of distortion with the starblast on large areas of flat metal but you really have to be asleep at the wheel and not be moving the nozzle.

as for boats,corvettes, and other fiberglass jobs soda is your best friend...one more thing it does a great job with is the noses on all your early gm's like gto's,they have a urethane bumper and they work perfect for those...

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Jakkel

Not to say your full of sh*t or not. But I have blasted a fender a week after Thanksgiving. An old CJ7 fender. Its been sitting outside in the weather here in Ohio with no primer or anything else. Just the bare metal surface after blasting. Which in the last 8 weeks has been nothing but rain and snow. And its just starting to show corrosion. And Its only now starting to show surface rust on one part of the metal. I blasted 3 aluminum wheels at the same time and there is nothing wrong with them either. If you like some pics of them I can take and post them. As for a proof of time I can not. But they were the first thing I blaster with my soda blaster.
As far as prep. I friend has had every classic car he's owned (20+ over the years) soda blasted before he painted them. And is one of the reasons I bought my blaster. That and all the other aspects I can blast. So I guess alot of it in the prep the bodyman does before hand.

blastserv

sheet metal and cast aluminum or magnesium are totally different metals and will react totally different to the soda.

i blasted a trans case ,a vw bus transaxle,it is corroding quickly.i will get you a pic. the sheet metal is fine to blast and i never said it would corrode it.i said it has to be washed and neutalized with vinegar before paint.i also said it is just removing paint...but you still have to sand it because there is no profile and the rust is still present and i said that if you soda blast it your just taking your customers money and really not offering them anything.

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gale

"if you soda blast it your just taking your customers money and really not offering them anything."

What?
Each one of my car customers was more than happy with the finish I left after blasting. The amount of time I saved them by removing several coats of paint was huge. Blasting for both a backyard mechanic and restoration shops, the time and ability to clean paint from areas they can not reach can not be beat. example: Cleaning all sides of each bolt head, arms, and springs of hinges for the trunk lid and hood. Removing all the paint from the underside of the hood and trunk. I (or any soda blaster) am not offering them anything?

What soda blasing offers is a efficiant way to remove paint from the body of a car without damage to the substraight.

When finished does the car have to be prepped prior to paint? Yes
Prep prior to paint is what makes the difference of a Macco paint job or a show car finish.

I do not know what you have growing on your trans, but I have a tailgate from a Pickup that is halve stripped as a demo, it is over a year old without rust. I have blasted many pieces of aluminum and all have been fine. the customer was pleased with the finish, one of which was a large aircraft parts supplier. Again time has to be taken to prep prior to paint.

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