| Author |
Message |
heimlich 
VWNOS.com
Joined: November 20, 2016
Posts: 6609
Location: Houston, Texas
|
 Posted: Sun Jun 11, 2017 8:25 pm Post subject: Re: Sandblasting - Harbor Freight Compressor |
 |
|
| buguy wrote: |
You should try spraying it for sure.
Do you know what your going to spray it with? A direct to metal material I hope! |
I'd like to learn how to spray a car properly. For the first one I just need to primer it since I need the body shop to make some patches for the areas around the rear windows next to the vents. They are rusted out. |
|
| Back to top |
|
 |
buguy
Samba Member
Joined: November 17, 2003
Posts: 4915
Location: Port Orange, FL
|
| Posted: Mon Jun 12, 2017 4:01 am Post subject: Re: Sandblasting - Harbor Freight Compressor |
|
|
| Cool. You may want to use epoxy primer that is designed to go on bare metal. Most primers aren't made for that. |
|
| Back to top |
|
|
heimlich
VWNOS.com
Joined: November 20, 2016
Posts: 6609
Location: Houston, Texas
|
| Posted: Mon Jun 12, 2017 9:53 am Post subject: Re: Sandblasting - Harbor Freight Compressor |
|
|
| buguy wrote: |
| Cool. You may want to use epoxy primer that is designed to go on bare metal. Most primers aren't made for that. |
I did not know that. I thought there might be some type of issue with it. Thanks for pointing that out. |
|
| Back to top |
|
|
Evil_Fiz
Samba Member
Joined: May 06, 2011
Posts: 1048
Location: Jacksonville, FL
|
| Posted: Mon Jun 12, 2017 12:00 pm Post subject: Re: Sandblasting - Harbor Freight Compressor |
|
|
| theKbStockpiler wrote: |
| Quote: |
| it is mostly incapable of covering a big enough area in a short enough amount of time to allow for heat buildup. |
It's not the heat it's the collision of the sand against the metal similar to a miniature hammer hitting the metal a countless amount of times. The metal is stretched out. |
I can't comment intelligently on your statement because I lack first hand experience at the moment.
Many posts on this thread have suggested having the body media blasted professionally, which is considered an acceptable and common practice; the other option being chemical stripping either by means of paint stripper or "dipping." It is my understanding that it is very easy to warp panels if the "professional" doing the blasting hits the metal at too sharp an angle or lingers in an area for too long. I also understand that sand is too aggressive and other media such as glass (what I am using and recommended above) or walnut shells are preferred for their softer touch. Heat buildup is the cause most often cited for the warping during media blasting due to the force and volume of commercial blasters. Dustless blasters are cited as being safer due to the cooling effect of the water used to control the dust. Are you arguing against blasting in general or just DIY/home blasting? Could you kindly elaborate and add any alternative solutions for rust and paint removal? I respectfully ask solely in the pursuit of information.
...we're all in this together.
Emil
_________________
It's not just about what's interesting. It's also about what's helpful, and it's helpful even if it helps just one other guy working on a Ghia.
kiwighia68
See my build on TheSamba at:
The K_R_A_K_E_N_N : a 70 Ghia Convertible reinterpreted |
|
| Back to top |
|
|
buguy
Samba Member
Joined: November 17, 2003
Posts: 4915
Location: Port Orange, FL
|
| Posted: Mon Jun 12, 2017 5:04 pm Post subject: Re: Sandblasting - Harbor Freight Compressor |
|
|
I would never advise any DIYer to do their own blasting. I've simply seen too many people really jack up cars doing it. Even some that have had experience. If I were to recommend something that is less likely to crest problems it would be to use aircraft stripper. Maybe even use an aircraft stripper and then very lightly blast it. Either way in would find a way to strip it before blasting. You can also use a rotary buffer with the appropriate backing plate and an agressive grit paper to strip it first. Still for me a novice with a blaster scares the crap out of me.
I understand that not everyone can afford it, but the dust less blasting seems to be the most logical. It even puts a chemical on that will give you time to get something on it before it rusts. Regular blasting will not. I've seen cars start to rust before the guy is even done sand blasting a car. Time is not on your side when blasting. Also sand blasting makes a huge mess and there is a dust cloud when doing it. Not something you would want to do in a residential area.
I'm guessing you would be looking at about a grand or maybe just a bit more for dust less blasting inside and out. |
|
| Back to top |
|
|
buguy
Samba Member
Joined: November 17, 2003
Posts: 4915
Location: Port Orange, FL
|
| Posted: Mon Jun 12, 2017 5:09 pm Post subject: Re: Sandblasting - Harbor Freight Compressor |
|
|
| kawfee wrote: |
| buguy wrote: |
| Cool. You may want to use epoxy primer that is designed to go on bare metal. Most primers aren't made for that. |
I did not know that. I thought there might be some type of issue with it. Thanks for pointing that out. |
If you end up doing it yourself you may want to use a high build poly primer that is made for direct to metal use. It will help you get closer to straight more easily /quickly. Something like Evercoat superbuild. |
|
| Back to top |
|
|
heimlich
VWNOS.com
Joined: November 20, 2016
Posts: 6609
Location: Houston, Texas
|
| Posted: Mon Jun 12, 2017 5:34 pm Post subject: Re: Sandblasting - Harbor Freight Compressor |
|
|
| buguy wrote: |
I would never advise any DIYer to do their own blasting. I've simply seen too many people really jack up cars doing it.
|
What are the pitfalls? |
|
| Back to top |
|
|
theKbStockpiler
Samba Member
Joined: July 07, 2012
Posts: 2316
Location: Rust Belt
|
|
| Back to top |
|
|
heimlich
VWNOS.com
Joined: November 20, 2016
Posts: 6609
Location: Houston, Texas
|
| Posted: Mon Jun 12, 2017 9:08 pm Post subject: Re: Sandblasting - Harbor Freight Compressor |
|
|
Wow, thank you for that.
I think I might take it very slow and low pressure then. How about if I use a water hose spraying the car to keep it cool while blasting it? Has anyone tried any cooling methods while sand blasting?
|
|
| Back to top |
|
|
c21darrel
Samba Member
Joined: January 22, 2009
Posts: 8211
Location: San Dimas
|
|
| Back to top |
|
|
Evil_Fiz
Samba Member
Joined: May 06, 2011
Posts: 1048
Location: Jacksonville, FL
|
| Posted: Tue Jun 13, 2017 12:11 pm Post subject: Re: Sandblasting - Harbor Freight Compressor |
|
|
^^^^^ Yeah, that.
Keep the pressure as low as possible and angle the nozzle to reduce the force of media impact. Go slow and pay close attention to the metal.
C21darrel knows of what he speaks. He's done this one or twice.
_________________
It's not just about what's interesting. It's also about what's helpful, and it's helpful even if it helps just one other guy working on a Ghia.
kiwighia68
See my build on TheSamba at:
The K_R_A_K_E_N_N : a 70 Ghia Convertible reinterpreted |
|
| Back to top |
|
|
heimlich
VWNOS.com
Joined: November 20, 2016
Posts: 6609
Location: Houston, Texas
|
| Posted: Tue Jun 13, 2017 12:20 pm Post subject: Re: Sandblasting - Harbor Freight Compressor |
|
|
I had to cancel my order with Northern Tool. They wanted $85 to deliver. I am not paying $85 to drop the package off the back of the truck.
So, I placed my order with Amazon instead and then sent them a note to cancel the order if I have to pay a lift gate fee when they arrive. |
|
| Back to top |
|
|
Mike Fisher
Samba Member
Joined: January 30, 2006
Posts: 17970
Location: Eugene, OR
|
| Posted: Tue Jun 13, 2017 12:50 pm Post subject: Re: Sandblasting - Harbor Freight Compressor |
|
|
Heavy items that need a lift gate will be shipped on a pallet, so they can move them with a pallet jack. You'll pay shipping on the weight of the pallet too.
_________________
https://imgur.com/user/FisherSquareback/posts
69 FI/AT square Daily Driver
66 sunroof,67,70,71,71,71AT,72,72AT,73 Parts
two 57 oval ragtops sold
'68 Karmann Ghia sold
Society is like stew. If you don't keep it stirred up you end up with a lot of scum on the top! - Russ_Wolfe/Edward Abbey |
|
| Back to top |
|
|
heimlich
VWNOS.com
Joined: November 20, 2016
Posts: 6609
Location: Houston, Texas
|
| Posted: Tue Jun 13, 2017 1:01 pm Post subject: Re: Sandblasting - Harbor Freight Compressor |
|
|
| Mike Fisher wrote: |
| Heavy items that need a lift gate will be shipped on a pallet, so they can move them with a pallet jack. You'll pay shipping on the weight of the pallet too. |
I am fine with that. The part that gets me is the fact that they will drive it to the door but then charge you to unload it to the ground and $85 to boot. |
|
| Back to top |
|
|
theKbStockpiler
Samba Member
Joined: July 07, 2012
Posts: 2316
Location: Rust Belt
|
| Posted: Tue Jun 13, 2017 1:59 pm Post subject: Re: Sandblasting - Harbor Freight Compressor |
|
|
Some things you should be aware of:
Unless you have a forklift I don't see how you are going to get out of a lift-gate fee. If you don't want to pay the fee you should be able to pick the item up at the shippers terminal If they have a dock that is compatible with the height of your vehicle.
Amazon is like Paypal where they will settle a dispute if the seller agrees to it. They don't have a court or a judge type of thing.  If the seller gives them resistance then you have a big problem. I would not count on Amazon to do the right thing even if you are undeniably in the right.
If the shipping container has so much as a dent or mark in it ,demand that you unpackage it and inspect it ,before you sign for it. On expensive items no one want's to take responsibility for it if it arrives damaged. It's actually not the sellers responsibility after the shipper picks it up. The ownership is passed to the buyer when the shipper takes responsibility of it. 
I don't know if this is appealing but HomeDepot stocks 3hp 60gallon compressors or can order you a Puma. They have forklifts to load it on your vehicle or for $20 you can rent one of their trucks and use the built in ramps to slide it down, in my locale anyways.
_________________
My beetle is not competing with your beetle. I have the yellow beetle in my town. There is a red one, a green one ......
Use all safety devices including a mask. |
|
| Back to top |
|
|
heimlich
VWNOS.com
Joined: November 20, 2016
Posts: 6609
Location: Houston, Texas
|
| Posted: Tue Jun 13, 2017 2:50 pm Post subject: Re: Sandblasting - Harbor Freight Compressor |
|
|
| They got me again. There is a special note on the amazon page. So misleading. Free shipping but to get it from the truck to the street is $85. |
|
| Back to top |
|
|
theKbStockpiler
Samba Member
Joined: July 07, 2012
Posts: 2316
Location: Rust Belt
|
| Posted: Tue Jun 13, 2017 3:29 pm Post subject: Re: Sandblasting - Harbor Freight Compressor |
|
|
What about TSC supply? They still stock big compressors where I live.Have you looked at the reviews on some of the compressors? Some have very poor ratings. 
_________________
My beetle is not competing with your beetle. I have the yellow beetle in my town. There is a red one, a green one ......
Use all safety devices including a mask. |
|
| Back to top |
|
|
c21darrel
Samba Member
Joined: January 22, 2009
Posts: 8211
Location: San Dimas
|
|
| Back to top |
|
|
heimlich
VWNOS.com
Joined: November 20, 2016
Posts: 6609
Location: Houston, Texas
|
| Posted: Tue Jun 13, 2017 3:31 pm Post subject: Re: Sandblasting - Harbor Freight Compressor |
|
|
| I called Northern Tool. Evil_Fiz helped me out with a coupon code and got the lift gate reduced to $35. Thanks Evil_Fiz! |
|
| Back to top |
|
|
heimlich
VWNOS.com
Joined: November 20, 2016
Posts: 6609
Location: Houston, Texas
|
| Posted: Wed Jun 21, 2017 1:17 pm Post subject: Re: Sandblasting - Harbor Freight Compressor |
|
|
I received my compressor. It's as tall as I am.
Now to find a place for it. |
|
| Back to top |
|
|
|
