Titan
Nov 13 2003, 07:49 PM
How do you safely take powder coat off? I am concerned with the stamps. The coat was put on very thick by the previous owner and you can barely see any of the stamping. The headtube crowns also seem rounded becasue it is so thick. It has a few scratches and dull spots in it as well. Can it be bead blasted or should it be baked off? I have heard that it may need to be baked off if it does not bead off. I have also heard that it can only be baked off. I just dont want to loose the stamping or the welds. Thanks for your help.
tznutts
Nov 13 2003, 08:27 PM
Take it to a Powder Coated and they can remove it without hurting anything.
lou
Nov 13 2003, 08:38 PM
aircraft remover. aka, liquid stripper
Bill
Nov 13 2003, 08:43 PM
Prisim has a fifty five gallon drum full of a liquid that will make powder fall off the frame and leave perfect metal underneath.
bbbmx
Nov 13 2003, 08:43 PM
I just went through this with my skunk.
DO NOT have it baked off or use a torch....if your frame is heat treated steel you can undo your heat treatment unevenly. My powdercoater told me that, if I wanted to do it myself, I should use a striper called Rock Miracle.....super nasty stuff...gloves, mask, eye protection, skin protection and exterior ventilation required.
If you bring it to your powder guy make sure you duscuss what he'll do 1st....I have been told that baking is not an option on heat treated steel as it can exceed 400 deg f.
tznutts
Nov 13 2003, 08:43 PM
quote:
aircraft remover. aka, liquid stripper
Sometimes that does not work... I have tried it.
lou
Nov 13 2003, 08:50 PM
cool, thanks for the info.
BREWdude
Nov 14 2003, 06:21 PM
The best way is to bake it off. Take it to a powder coater that has the burn off oven and tell him to bake at 775f. This will not harm the heat treatment at all. By blasting and sanding you will damagfe the heattreatment since the outside surface is the hardest. Normal charge is $25-$50.
Titan
Nov 14 2003, 09:35 PM
Thanks everyone. My main concern is the heat treatment, if it will be compromised during the bake off. I plan on riding the frame and dont want to go out like a sucker.
Titan
Nov 17 2003, 08:23 PM
Check this article. Do others agree that it should be baked off?
Titan
Nov 17 2003, 08:25 PM
Check this site. Anyone else think I should bake it off? Or should try and airpalne it off? Again, trying not to compromise the welds.
http://my.execpc.com/~davewrit/Powder.html
Titan
Nov 17 2003, 08:26 PM
spelling, Airplane remove it
Titan
Nov 19 2003, 07:50 PM
I took airplane remover to it. I applied it with a paint brush, heavy. Make sure it is sunny out. Turn the frame to the sun side every 5 minutes so it gets hot. Wait 15 minutes. I used a spray can top to scrape off the paint. It peeled off well. Of course there were spots which were missed. So I did it a second time. All of the major spots were removed. In the headtube and BB just get some steel wool and use a screw driver to reach it in and scrub the paint off. Now I just have a few specks here and there, mostly in the weld areas. I would say only 5 to 10 small specks, I'll use a needle tip to get to them. The frame was red. The metal in some places is still a tint of red. I am just going to apply another coat and use an sos pad. It will come off. I tested small patch with this technique and it worked. It was easy, and I am glad I tried. Thanks everyone. If you do this, wear long sleeves and pants. Use thick rubber gloves. Cover you skin. Water rinses it off your skin and relieves your skin from pain. You WILL get some on yourself. Most important use very good goggles. WITHOUT ANY holes. It took about 3 hours to do the job right. Put a big section of cardboard under your frame, so all the runoff and paint shavings will be easilly collected.
BREWdude
Nov 20 2003, 06:04 AM
As long as the frame (steel) is baked off in a commercial bake off oven it will not harm it as long as you tell them not to go over 775F. We ramp up slow and bring the frame temp back slow also.
The trouble with any aircraft remover is that you have to remove 100% of it after to not cause any problem with final finish. If someone sends in a frame they tryed to strip we do a bake off, acid wash, bake off and then iron phoshate wash.
Titan
Nov 20 2003, 10:17 AM
I heard the iron phosphate wash is the key to a good job.
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