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#1 |
Registered User
Join Date: Dec 2022
Location: Peoria, Arizona
Posts: 399
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Paint Mixing for Idiots
Ok, I am going to apologize in advance for a dumb question....but math was never a strong point with me, so please be gentle. :-)
I am getting ready to apply a seal coat of epoxy primer to my project. I am using the eastwood epoxy primer which is a 1:1 mix ratio of primer to activator.....easy enough. Now, according Eastwood, I need to reduce this by 20% with a urethane reducer in order to use it as a seal coat. How do I do this on a mixing cup? I have a boat load of these. Math sucks....plain and simple. In high school I dropped out of geometry because it was dumb and I would never ever need to know squat about angles. Well, I ended up joining the Marines and they made me a mortarman.....I guess Mr. Tuttle (geometry dick in HS) was right after all. Clay
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Clayton Sikes Peoria, Arizona 1967 Chevy K20 Build Thread: https://67-72chevytrucks.com/vboard/...d.php?t=841272 |
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#2 |
Post Whore
![]() ![]() Join Date: May 2015
Location: Alabama
Posts: 14,630
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Re: Paint Mixing for Idiots
I'd go by the oz. marking on the cup... multiply however many oz you mix by .20...that'll be how much reducer you need
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Mongo...aka Greg RIP Dad RIP Jesse 1981 C30 LQ9 NV4500..http://67-72chevytrucks.com/vboard/s...d.php?t=753598 Mongos AD- LS3 TR6060...http://67-72chevytrucks.com/vboard/s...34#post8522334 Columbus..the 1957 IH 4x4...http://67-72chevytrucks.com/vboard/s...63#post8082563 2023 Chevy Z71..daily driver |
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#3 |
Senior Member
![]() Join Date: Dec 2009
Location: TN.
Posts: 8,073
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Re: Paint Mixing for Idiots
I total understand this.
![]() The math thing. ![]() I almost failed Algebra in the 80's . My grandpa helped me through this issue. ![]() ![]() ![]() Stay with me on this story. I was a Knucklehead back then. (and still can be) ![]() I would ask the math teacher, Why do I need to know A+B=C ? She said it is a Formula you apply to figure things out. Years later I Totally Understand. Grandpa sat me down on the back stoop of My Grandparent's home. Then He proceeded to show me WHY. ![]() At 17 years old I didn't need that. ![]() Now years later I am a Machinist. I not only use Trigonometry. I know how to spell it. ![]() ![]() ![]() Now let's get serious. ![]() When you are getting ready to mix the paint you can give me a Call. ![]() You have to use the KISS philosophy. Just use the single digit stuff. Think of this as Money. If you have 50 cents of Primer./ 5 ounces of primer Then you add 50 cents of activator. / 5 ounces of activator This mix is = to 100% You have a 1:1 ratio. Then add 20 cents / 2 ounces of Reducer.
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________________________________________________________________________________________ ____________________________________________ 84 Chevy K-20 63 Impala (my high school car) http://67-72chevytrucks.com/vboard/s...Crew Cab Build |
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#4 |
Registered User
Join Date: Dec 2022
Location: Peoria, Arizona
Posts: 399
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Re: Paint Mixing for Idiots
Yeah, math has always been a challenge for me. It can be pretty embarrassing, but for some reason I just have always had a difficult time with numbers. The only exception is fractions. I have always been good at those....maybe due to my use of a tape measure for so many years doing concrete work. Thankfully, my wife is a numbers whiz kid so she handles all that stuff.
Ok, I think that I will try to just use 20% of the total after I mix the primer and the catalyst like Greg mentioned. Thanks fellas! Clay
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Clayton Sikes Peoria, Arizona 1967 Chevy K20 Build Thread: https://67-72chevytrucks.com/vboard/...d.php?t=841272 |
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#5 |
Registered User
Join Date: Oct 2008
Location: Marianna Arkansas
Posts: 7,269
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Re: Paint Mixing for Idiots
If you do fractions 1/5 reducer. If improves flow from the gun . I add a little MR186 to all my primers and have for many many years [Thats Omni numbers for the non PPG people] It just a splash to like I said help flow and reduce the "pebbled" look that some primers might give off depending on the primer. Good luck Happy sanding [although if your doing sealer your close to done with the sanding. Thanks for your service. Jim
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#6 | |
Registered User
Join Date: Dec 2022
Location: Peoria, Arizona
Posts: 399
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Re: Paint Mixing for Idiots
Quote:
I am getting closer now. The only body work left on the truck is the tailgate now. I am hoping to get everything sanded and painted by Halloween, but we will see. :-) Clay
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Clayton Sikes Peoria, Arizona 1967 Chevy K20 Build Thread: https://67-72chevytrucks.com/vboard/...d.php?t=841272 |
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#7 |
Senior Member
![]() Join Date: Mar 2003
Location: Colfax-California
Posts: 8,519
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Re: Paint Mixing for Idiots
20 percent is a division of 5. So total ounces divided by 5. how's that for simple
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#8 | |
Registered User
Join Date: Dec 2022
Location: Peoria, Arizona
Posts: 399
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Re: Paint Mixing for Idiots
Quote:
Clay
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Clayton Sikes Peoria, Arizona 1967 Chevy K20 Build Thread: https://67-72chevytrucks.com/vboard/...d.php?t=841272 |
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