E-Bodies.org Cuda Challenger Forum

Technical Shop => Body Shop => Topic started by: nsmall on April 14, 2017, 11:17:43 AM

Title: Which media blaster to use?
Post by: nsmall on April 14, 2017, 11:17:43 AM
Sorry folks as you don't live here and I know I ask a lot of questions that I should just decide on my own but I appreciate your opinions.

So media Blaster #1 has been doing it for over 35 years and uses a variety of media depending on the panel or job.  He doesn't use garnet and says he doesn't think it's the best media.  He will do my entire car and Underside and put it in PPG primer for $2,200.  I didn't have plans to do the interior...I could post pictures because it looks real solid.

Media blasted #2 is a powder coating shop that only uses garnet and will charge me $1,000.  The car then will go directly to my painter who will put it in primer. My painter prefers these guys and says they won't warp the panel or anything.  They seem less confident about how to do the underside and that's what kind of freaks me out about them as when I asked them they just said "we'll get to it" where as Media Blaster #1 explained exactly how you would blast Underside.

I guess get question to also ask would-be how much do you think I should have to pay for someone to Prime and the cost of materials to prime a car that's been totally media blasted minus  the interior?

Any advice would be appreciated as it seems like it's a difference of about $700 if I use media Blaster #1 and I'm more confident in him.

Thanks

Title: Re: Which media blaster to use?
Post by: 71GranCoupe on April 14, 2017, 11:22:50 AM
Good question and I will be watching all the good advice on this one. I have heard that garnet is a good abrasive, but if in the hands of a novice warped panels are then a concern. With all the cars Alan has had media blasted, his advice may be hard to beat. :alan2cents: :popcorn:
Title: Re: Which media blaster to use?
Post by: B5Cuda440-6 on April 14, 2017, 11:26:30 AM
It sounds like blaster #2 is a better option, especially because their process will not warp the panels, and they specifically stated this. Plus, I would rather your painter apply the primer vs. the blaster. At least that way you know his techniques will be correct and there will be no complaints with application issues.

If the price difference such that you could have #1 only blast the bottom, then you can take it #2 for all the other items? If you end up being less that $2200 overall, I would say you are ahead. And you would have each blasting shop do what they are best at.

My thoughts...
Title: Re: Which media blaster to use?
Post by: Burdar on April 14, 2017, 01:03:18 PM
You're going to get different opinions on this.  I'm not a body man so I can only share what was done on my two cars at different shops.  Both my cars were sand blasted on the interior, engine compartment, underside, trunk and door jambs.  The outer body panels weren't blasted at all.  The outer body panels were stripped by hand with a DA sander. 
Title: Re: Which media blaster to use?
Post by: scf100 on April 14, 2017, 01:32:48 PM
I just used a Dustless Blaster which I think is a franchise biz and he used glass beads on the bed of my 1963 Falcon Ranchero and did an awesome job.......really fine granules looks like sand........
Title: Re: Which media blaster to use?
Post by: soundcontrol on April 14, 2017, 02:57:45 PM
Quote from: scf100 on April 14, 2017, 01:32:48 PM
I just used a Dustless Blaster which I think is a franchise biz and he used glass beads on the bed of my 1963 Falcon Ranchero and did an awesome job.......really fine granules looks like sand........

Is that the water blasting device? How do they stop the surface from rusting right away? I got a blasted piece wet and there was rust on it the next day.
Title: Re: Which media blaster to use?
Post by: RUNCHARGER on April 14, 2017, 05:21:43 PM
I like sanding the outer skin as well. It's hard to sand stuff like the inside of the hood though and I've seen lots of those wrecked by blasting.
Title: Re: Which media blaster to use?
Post by: anlauto on April 14, 2017, 05:35:27 PM
First mistake is not doing the interior. All the old seam sealer/undercoating should be removed and the car entirely blasted inside and out. The interior is where most of the rust hides. Why do a half-assed job if you're going this far ?

Second...99.9% of any quality body shop would prefer if they start with a bare steel shell and place their own primer on it. Most shady shops won't care, because next year when their bondo work bubbles out, they can blame it on someone else's primer.

A quality automotive blasting facility will be able to strip body panels without warping and will most likely use different types of media to do so.

Tip: Don't make your decision based on price  :alan2cents:
Title: Re: Which media blaster to use?
Post by: Cuda Cody on April 14, 2017, 06:14:08 PM
 :iagree:  Price is not going to be the factory that gets you where you want.  Talk to some of their previous customers and see what they say about the jobs they did.
'
Also, why blast at all if you're not going to get all the rust and material clean?  Blasting only the outside of the car is like only washing the outside of the dish.  You want to do this once right?  Blast all the car on a rotisserie or don't waste the money.   :alan2cents:
Title: Re: Which media blaster to use?
Post by: nsmall on April 14, 2017, 07:02:52 PM
As always you guys are giving me good advice to think about.

The garnet guy only uses garnet.  He says he'll spend 2 hours on the hood and 2 hours on the roof alone as he has it on a very low setting so it takes a long time.

I like the idea of the painter putting it in primer so there are no excuses.

I don't have plans for a rotisserie as I'm not doing the bottom side body color and the bottom side is solid.  I'm going to do undercoating for the bottom side.

Attached are pictures of the passenger side and the driver side looks the same.
Title: Re: Which media blaster to use?
Post by: nsmall on April 14, 2017, 07:05:57 PM
I talked to the media Blaster and he said that he can use the garnet to get the undercoating off in the wheel well area but I don't know if that sounds crazy?

As for the interior I was thinking of just leaving everything besides the roof as I'm not painting interior body color besides maybe the firewall and it seems solid inside but maybe I don't know what I'm talking about.

Attached are photos of the roof...
Title: Re: Which media blaster to use?
Post by: nsmall on April 14, 2017, 07:07:42 PM
As for the rest of the interior, it's like tar underneath the sound deadener so that seems like a real nightmare too try it rip out.   I checked underneath it here and there and it seems really solid.

Title: Re: Which media blaster to use?
Post by: nsmall on April 14, 2017, 07:16:05 PM
Both painters want the car to be media blasted that I'm interested in using.

I'm doing a color change so that makes sense as does getting rid of any potential rust.

The doors and fenders and hood and trunk lid obviously will be off so I was thinking that would be enough to get the majority of the rust out.

As for the interior.   Im now getting your your point of going all the way. 

So if you do stripe the interior all the way bare do you just reseal all of the areas that were sealed by the factory?

Thank you so much guys for all your help and not kicking me off this site yet as I know I take a lot and don't give much.

Thanks
Title: Re: Which media blaster to use?
Post by: Cuda Cody on April 14, 2017, 07:22:08 PM
If you're not going to blast the whole car inside and out, then why not just sand the outside and paint it?  You can DA (Dual Action) sand the outside pretty easy or just have your body shop / paint guy do it?  Not sure there's much advantage to blasting if you're only doing the outside?   :notsure:   If your car is that super clean and you feel like you're not going to remove everything down to bare metal, just save yourself the money and only paint the outside.   :dunno:
Title: Re: Which media blaster to use?
Post by: anlauto on April 14, 2017, 07:38:04 PM
 :iagree: Exactly...do it all or don't do it at all :alan2cents:
Title: Re: Which media blaster to use?
Post by: soundcontrol on April 15, 2017, 08:14:20 AM
Blast the whole car. It's so nice to work on the car when its blasted and primed. I know where all the bad spots are and just seeing it nice and clean and no rust or dirt whatsoever make a big difference. Take the undercoating in wheel wells off before blasting, very easy with a torch and a scraper.
Title: Re: Which media blaster to use?
Post by: HP_Cuda on April 15, 2017, 02:40:14 PM
 :iagree:
Title: Re: Which media blaster to use?
Post by: A.Gramz on April 15, 2017, 03:30:36 PM
My truck floor looked solid until it was blasted.   Then pin holes everywhere.  So u never know.   Do it right now and there will be nothing in the back of your mind eating at you over the years.   You'll know it's done right.  I know it's easy for me to say that sitting miles away but I think it's well worth the little extra money to do.  I can't see it being that much more.
Title: Re: Which media blaster to use?
Post by: nsmall on April 15, 2017, 09:55:53 PM
@anlauto (https://forum.e-bodies.org/mlist/anlauto_19)

Thanks for your input.  I'm planning on it be blasted. Thinking blaster #2 is the best option as my painter likes the company.

Not sure if this sounds right but can I  leave the interior in primer once its put in primer?

  Why would I spend the money to paint the interior body color that is going to be covered?

I understand the mopar tradition and the interior fire wall being painted body color, but under the carpet/roof/behind the interior panels?

  Im building a beautiful driver, not some perfect show car.

Alan, isnt it true your cars dont go on a rotisserie or do they get blasted on a rotisserie?  If you dont want to answer, no biggie.

I hope all of the garnet can be removed even though my car will NOT be on a rotisserie. 

Thanks
Title: Re: Which media blaster to use?
Post by: Tunis on April 16, 2017, 01:36:09 AM
I don't know much about paints, but as far as I understand a primer is just that, a material that sits underneath your paint. It will not be hard and durable like a 2k paint that chemically cures and creates a hard surface. Why only paint certain areas of the interior?

To me it feels like you are trying to save money on the most important part of your car. I know what it's like to have a tight budget, but it's the same with paint as with the blasting. If you don't want to pay to protect the metal after blasting, then don't blast it.  :alan2cents:

Restoring a car cost much more than I thought before starting, both time and money. If you can do some of the work yourself you can save a few bucks that you can spend elsewhere on the car.
Title: Re: Which media blaster to use?
Post by: anlauto on April 16, 2017, 05:11:03 AM
In 32+ years of restoring Mopars I've NEVER used a rotisserie  :alan2cents:

Usually my painter only paints the inside to keep the dust down or empty his gun :barf:
Title: Re: Which media blaster to use?
Post by: scf100 on April 17, 2017, 04:58:40 PM
Quote from: soundcontrol on April 14, 2017, 02:57:45 PM
Quote from: scf100 on April 14, 2017, 01:32:48 PM
I just used a Dustless Blaster which I think is a franchise biz and he used glass beads on the bed of my 1963 Falcon Ranchero and did an awesome job.......really fine granules looks like sand........

Is that the water blasting device? How do they stop the surface from rusting right away? I got a blasted piece wet and there was rust on it the next day.
e

Yes it's a water jet blaster that's how it's dustless....there is a chemical mixed in that's seals metal to prevent flash rust and you can paint over it after wiping down with a paint prep
Title: Re: Which media blaster to use?
Post by: nsmall on April 17, 2017, 05:17:53 PM
Well I talked to the media Blaster who I thought only uses garnet and he actually uses a variety of media and has a rotisserie if I need it.

So since my painter likes him and he seems like he knows what he's doing I'm just going to go with him.



Thanks
Title: Re: Which media blaster to use?
Post by: soundcontrol on April 18, 2017, 07:44:16 AM
Good choise! I can't see anyone blasting a car without some kind of device to tip it over.
Title: Re: Which media blaster to use?
Post by: anlauto on April 18, 2017, 02:43:01 PM
ALL the cars I have had blasted were never "flipped over" Only raised up. :alan2cents:
Title: Re: Which media blaster to use?
Post by: scf100 on April 18, 2017, 04:54:38 PM
Quote from: anlauto on April 18, 2017, 02:43:01 PM
ALL the cars I have had blasted were never "flipped over" Only raised up. :alan2cents:

Alan,
how do you blast undersides?

Do you have an outdoor lift?

Do on lift inside?
Title: Re: Which media blaster to use?
Post by: anlauto on April 18, 2017, 06:54:15 PM
I outsource media blasting to a company with the proper equipment. The car stays on my cart, I believe they just lift it up some how. I've never asked. I do know they come back very clean, top to bottom.
Title: Re: Which media blaster to use?
Post by: nsmall on April 18, 2017, 08:40:48 PM
@anlauto (https://forum.e-bodies.org/mlist/anlauto_19)

Thanks for all this information everyone.

I'm not looking for some perfect restoration here.

I so when it comes to the media getting in the crevices between the quarter panels and where the rear interior panels go on the interior... Is it possible to get the media out without a rotisserie?  I'm assuming you get clever with the air compressor stick some rods in weird angles in there and start blowing the crap out of it?

Thanks
Title: Re: Which media blaster to use?
Post by: soundcontrol on April 19, 2017, 03:39:41 AM
Quote from: nsmall on April 18, 2017, 08:40:48 PM
@anlauto (https://forum.e-bodies.org/mlist/anlauto_19)

Thanks for all this information everyone.

I'm not looking for some perfect restoration here.

I so when it comes to the media getting in the crevices between the quarter panels and where the rear interior panels go on the interior... Is it possible to get the media out without a rotisserie?  I'm assuming you get clever with the air compressor stick some rods in weird angles in there and start blowing the crap out of it?

Thanks

If you leave it to a company they will clean off all media before you get the car back.
Title: Re: Which media blaster to use?
Post by: anlauto on April 19, 2017, 03:53:15 AM
Quote from: soundcontrol on April 19, 2017, 03:39:41 AM
Quote from: nsmall on April 18, 2017, 08:40:48 PM
@anlauto (https://forum.e-bodies.org/mlist/anlauto_19)

Thanks for all this information everyone.

I'm not looking for some perfect restoration here.

I so when it comes to the media getting in the crevices between the quarter panels and where the rear interior panels go on the interior... Is it possible to get the media out without a rotisserie?  I'm assuming you get clever with the air compressor stick some rods in weird angles in there and start blowing the crap out of it?

Thanks

If you leave it to a company they will clean off all media before you get the car back.

:iagree: exactly
Title: Re: Which media blaster to use?
Post by: JS29 on April 19, 2017, 06:02:00 AM
In my neck of the woods (Central New York) we have A lot of humidity, media blasted metal will rust before your vary eye's. I put some kind of coating on the metal ASAP. :alan2cents:
Title: Re: Which media blaster to use?
Post by: Shoooter on April 23, 2017, 08:29:49 PM
My personal opinion I would do the whole car. Why do it half way. If it's about money wait till you can save a few more dollars . You will be happy know you got everything 100%