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 Catalina/Capri 25/250 Sailor's Forums
 General Sailing Forum
 alternative to sand blasting		  New Topic  Topic Locked
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Frank Hopper
Past Commodore

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Pitcairn Island
6776 Posts
Initially Posted - 09/17/2003 :  07:46:40  Show Profile  Visit Frank Hopper's Homepage
I am working on my '82 Trail-Rite in my driveway. I am replacing the brakes and rollers. I will have some rollers for sale soon. A man in a very cool vintage chevy truck stopped and ask me what I was going to do about the paint and rust on my trailer. I told him that the accepted wisdom is to sand blast and paint with epoxy. He said "please go to my website and check out the process I use, soda blasting". Has anyone formed an opinion on this? Appearently he can do it in my driveway bacause you simply wash the baking soda down the sewer.
http://www.fatfenderssodablasting.com/system_apps.html
The site shows boat bottoms being done as well.

<img src="http://members.cox.net/fhopper/Catalina25/sigbow.jpg" border=0>Frank and Martha in Wichita KS. Lake Cheney
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ClamBeach
Master Marine Consultant

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3072 Posts
Response Posted - 09/17/2003 :  10:07:29  Show Profile
I'd approach the idea of blasting the trailer in your driveway with some caution.

Depending on the environmental laws in your area, you could face jail time or fines for washing toxic material (the paint residue) into public waters. I'd certainly question this fellow about the laws in your area and how he handles the issue of disposal of paint residue.

Another alternative blasting material is crushed dry-ice. It simply evaporates.. leaving only the paint and rust behind to be swept up and disposed of. Some of the boatyards in the SF Bay Region (a very enviornmentally sensitive area) use this method. ($$$ required).

Currently maintaining two holes in the water...'77 Venture 23 and new to the family,
'78 Catalina 25
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Frank Hopper
Past Commodore

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Pitcairn Island
6776 Posts
Response Posted - 09/17/2003 :  13:55:47  Show Profile  Visit Frank Hopper's Homepage
In my driveway was my idea. He said he will come and demo some at my house but would like to do the job at his shop. He wants $225.

<img src="http://members.cox.net/fhopper/Catalina25/sigbow.jpg" border=0>Frank and Martha in Wichita KS. Lake Cheney
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svmoxie
Past Commodore

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USA
331 Posts
Response Posted - 09/17/2003 :  15:00:12  Show Profile  Visit svmoxie's Homepage
Baking Soda blasting is a real concept. It is frequently used on fiberglass hulls to remove bottom paint without harming the hull. The key is the fact that it isn't as abrasive as sand. Other medium used include walnut shells and plastic beads.

I don't see the advantage to using soda on the metal trailer as the abrasive here won't hurt anything... however I certainly am no expert. The best job will come from completely dismantling the trailer and blasting / painting the individual components separately. Otherwise you will have crevice rust between parts that will work under the epoxy.

Another choice, if you can find it locally, is a dip tank of either stripper or a galvanizer that can drop the entire trailer frame in. The price is likely not to be much more that the cost of blasting and painting. Do a search for "Hot Dipped Galvinizer"

http://www.aplusgalv.com/
A-Plus Galvinizers is in Salina, KS

Good Luck


<img src="http://www.witt.com/media/galvprocess1.gif" border=0>

Clif Thompson
Treasurer C-25/250 National Association.
svMoxie '81 25 sk


Edited by - svmoxie on 09/17/2003 15:02:04
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Frank Hopper
Past Commodore

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Pitcairn Island
6776 Posts
Response Posted - 09/17/2003 :  22:47:09  Show Profile  Visit Frank Hopper's Homepage
I sent them an email, they are close to Wichita. Thanks

<img src="http://members.cox.net/fhopper/Catalina25/sigbow.jpg" border=0>Frank and Martha in Wichita KS. Lake Cheney
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Notice: The advice given on this site is based upon individual or quoted experience, yours may differ.
The Officers, Staff and members of this site only provide information based upon the concept that anyone utilizing this information does so at their own risk and holds harmless all contributors to this site.