After grinding down welds as smooth as possible, should I use bondo or JB weld to finish the job?
Thanks all
After grinding down welds as smooth as possible, should I use bondo or JB weld to finish the job?
Thanks all
Use bondo just as would on the body of a car.
Bondo won't hack the temp. Be very careful when grinding the reinforcement off your welds. If the penetration is not very good due to the procedure or process you may be grinding away a lot of the strength. If I am going to vanity grind welds I make sure they have a good vee prep and the penetration is 100% - i.e. the weld fuses the whole setup gap.does any one knows if bondo will work if you powder coat due to the 460 Deg. F oven Temp. or do I have to use JB weld?
Look at alvinproducts.com. I get it at the welding supply or at Fastenal(spelling).Bondo won't hack the temp. Be very careful when grinding the reinforcement off your welds. If the penetration is not very good due to the procedure or process you may be grinding away a lot of the strength. If I am going to vanity grind welds I make sure they have a good vee prep and the penetration is 100% - i.e. the weld fuses the whole setup gap.
When dressing welds for chrome I just remove enough to take of the high spots and ridges. The polishing will smooth out whats left.
I know folks like to have that smooth molded look but there's nothing wrong with a good looking weld painted, powder coated or plated.IMHO
Ron
Keeper, I use a product called (ALL METAl) this is an aluminum/epoxy mix and works simular to body plastic. We have used it under powder coat on several frames and such but. do a sample piece first and have them powder and bake it. That is what I did but maybe your powder coater uses a higher temp, We bake at 400 degrees.......Ron (ruggs)I was asking the powder coater about using bondo and coating. He told me that you will most likely get bubbles wherever the bondo is. "If you want to smooth things, use a hard epoxy that plumbers use"
Now I have not looked up what epoxy that plumbers use yet, but might give you somewhere else to check.
Keeper, I use a product called (ALL METAl) this is an aluminum/epoxy mix and works simular to body plastic. We have used it under powder coat on several frames and such but. do a sample piece first and have them powder and bake it. That is what I did but maybe your powder coater uses a higher temp, We bake at 400 degrees.......Ron (ruggs)
I've used all metal, and it works ok. they have several versions that handle from 350 degrees all the way up to 2000 degrees. I recomend you buy from a local supplier that knows you however, as the shelf life isn't very long. I've purchased product that was 1/2 hard and grainy in the can and had to return it.
my local supplier, BTW, was Fastenal. most outlets will have it.
.02
Russ
Russ, Lab metal is probably close to the same product but, I really need to stress that anyone using either product needs to do a test first. I've never had a problem with bubbles or anything but I also use it sparingly....Ron (ruggs)I was wrong. [first time today] the product I used under powder coating was called Lab Metal. it was purchased from Fastenal however. All metal and other similar products may also work, but I haven't used them myself. sorry. I had a brain fart.
Russ
Russ, Lab metal is probably close to the same product but, I really need to stress that anyone using either product needs to do a test first. I've never had a problem with bubbles or anything but I also use it sparingly....Ron (ruggs)