Turbo vs. High build vs. Regular. Pros and cons of each?

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I can't decide what primer I should use. I'm a newbie at body work so I'm thinking maybe the high build will help with my mistakes? Is the high build prone to more shrinking? Is there any other reason why people don't gravitate towards the high build?

Also, are there any cons to the turbo? It seems that if there were no cons to it, everyone would use it in stead of regular because why not have a product that dries quicker?

Any other input on the pros and cons of each would be helpful in making my decision! Thank you!
 
I asked Barry what he would use and he said Turbo so if it is good enough for Barry that is what I'm using.
 
I have limited experience, but I choose the high build over the Trubo becasue I want more opportunity for blocking out the surface. If I were more experienced with body work, I would use the turbo.

Now with that said, I am just getting ready to shoot epxoy primer (spi) over my bodywork (filler over epoxy). There are a lot of places Im questioning why I would want to use high build primer becasue I blocked out my epoxy primer using it for a guide coat and it all seems very level. The Turbo may have been a good option, but for my first job in a long time and with the SPI Line, Im still going to follow thru with two coats of high build with guide coat and final blocking just to make sure I have not missed anything.


Im assuming Barry has a lot of experience in paint and body work, so Turbo may be more appropriate for that reason. If Barry were asked the question, "Would you recommend turbo or high build for a newbie?", he may recommend the high build.

I think Rusty has a lot of experience as well, so IF my assumption is correct, turbo may be the better option for him as well.

Maybe they will provide more information or correct me once this post is up.
 
Some people call and don't want to talk nothing that does not say high build on the can.
Newer people to the trade are most guilty of this, we will try and talk them out of it for a few reasons, first most cars might have one panel that could use high build and if that is the case, instead of putting 3 coats of regular build on before blocking, do a 4th coat on the one panel.
You save money and sand paper to level out what you have too much of and get more exercise.

Turbo mixed 4:1:1 fills like the regular build, cut reducer 10% and it fills like the high build.

Also reducer is a lot cheaper then primer. do the math and you will figure out what costs more and what is cheaper to use.
 
Well that cleared a lot up. I will go ahead and use the gallon of high build I have and then switch over to turbo. When I ordered my gallon of primer and activator, I asked which primer I should use. I thought I was told to use the regular, but when I opened it, it was the high build. I assumed it was my error but now Im not sure. Its ok, I will use it and next order will be the turbo.
 
Outlaw;n75730 said:
Well that cleared a lot up. I will go ahead and use the gallon of high build I have and then switch over to turbo. When I ordered my gallon of primer and activator, I asked which primer I should use. I thought I was told to use the regular, but when I opened it, it was the high build. I assumed it was my error but now Im not sure. Its ok, I will use it and next order will be the turbo.
Click to expand...

You can reduce the high build primer to decrease the amount of millage.
 
The high build primer is one of the few SPI products I do not carry.. I agree with Barry 100% in that you can just apply another coat of turbo if you need more blocking. I think sometimes people don't realize how much filling you can do with the regular 2k or the Turbo.
 
What would be a good mix ration (reduction) for the high build to make it similar to regular or turbo primer where the millage is not needed?:
 
I did not think of the the potential of using high build and having to sand panels flat that are already pretty decent. Im learning. It might be a lot of work and still not get a panel as flat as it was before applying high build.
 
Outlaw;n75881 said:
What would be a good mix ration (reduction) for the high build to make it similar to regular or turbo primer where the millage is not needed?:
Click to expand...


I answered my own question, reduce no more than 25%. I just had to read the tech data.
 
Does that mean I can use the 4:1:1 in my mixing ratio cup to reduce the highbuild 10-15%?
 
OK, to get the high build to spray like the turbo mixed 4:1:1/.
In a painters pail.
Take primer to the number 4.
Activator to the number 5.
Now instead of reducer going to number 6 for a 4:1:1 mix
go 51/2 of reducer and you will be real close to the turbo with a mix of 4:1:1.
 
Thanks Barry, after I posted I waited awhile and figured you had left the office and might not get back so I texted you and got your reply same as above. I was getting ready to mix and test a little high build (reduced). Thanks again! I wanted a smaller amount but I just used the 4:1:1 ratio scale and instead of using the graduated cup scale. When doing that, I just use 1/2 of the last figure (reducer). Should be the same. It got late and I did not get it done anyway, maybe Friday.
 
When I reduce high build to 4:1: .50 to spray like Turbo, I use a tip recomended for Turbo, not high build, Is that correct?
 
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