Can anyone check my math for dilution ratios?

[gbackus]

I don't think Meguiar's recomends claying with a water:soap mixture, but it's how I've been claying for the past year or so(I know other pro's do it this way too) as it saves a lot of time for me because I do it during the wash step.

I normally mix my spray lube at 8:1, water:soap, and the normal dilution is 128:1. So recently I picked up hyper wash, which is a 400:1 concentrate. To get roughly the same dilution as my other spray lube, I figured 400/128=3.125. So Hyper wash is 3.125 times more concentrated. so 3.125x8=25. So my new spray lube should be mixed at 25:1 to get roughly the same dilution, correct?

Can anyone check my math to make sure I'm on the right track?

Thanks.

[the other pc]

Math, cool!

It's always fun to work it from a different angle to see if you get to the same place so:

Usually you work 8:1 with a product specified at 128:1.

So you're working at 128/8 = 16 times the normal concentration.

Switching to Hyperwash, whose normal dilution is 400:1, to get it 16 times more concentrated the new dilution would be 400/16 = 25.

Yup, you got it right, 25:1.


PC.

[gbackus]

Thanks a lot!

[Andrew]

didn't know you had to be a math major to detail cars j/j
but on the subject does anyone have recomindations on how to fill spray bottles with water after you add your product? specifically apc from detailer line, I mix 10:1 but never can get it right due to the fact that when I am adding the water to the spray bottle it starts to foam and bubble all the way to the top of bottle and I can either continue to fill up bottle to specifed line(and loose lots of apc due to the overflowing suds) or stop filliing when suds reach the top of the bottle but then I worry I am using apc that is too concentrated. example I use same ratio for interior cleaning ie- door panels, stering wheel and plastic trim. I was cleaning my stering wheel on 02 impala and spayed apc and let stand maybe two minutes then work it in a little and then wipe off all with a terry towel and it removed the color from the rubber(almost look like clear or blue rubber under the dye). I would like to continue to purchase the detailer line as it is more cost effective but not if I am going to loose so much product trying to dilute it. any suggestions mol?

[gbackus]

Originally posted by Andrew
didn't know you had to be a math major to detail cars j/j
but on the subject does anyone have recomindations on how to fill spray bottles with water after you add your product? specifically apc from detailer line

You add the product to the water. So far instance, at 10:1, you would fill the bottle with 30 ounces of water, then 3 ounces of chemical. This is of course a simplified example.

[Andrew]

thanks for pointing out the obvious, I thought about that 1st time the "overflowing" happened but not so good at math and my spray bottle didn't have measurements to easily mix backwards but I will try again, thanks for the quick reply too

[Detalnewb]

Originally posted by gbackus
You add the product to the water. So far instance, at 10:1, you would fill the bottle with 30 ounces of water, then 3 ounces of chemical. This is of course a simplified example.

Is that how it works, or is it 3 ounces to 27 ounces making the final solution 3:30 or 1:10? 3:33 = 1:11. Not that it REALLY matters, but at work we sometimes have the same discussions.

[the other pc]

A couple random thoughts,

If all you lose out the top while filling is foam you won't be losing much product. Foam is mostly air with relatively little liquid.

If you can figure a way to add the water slowly, without splashing and sloshing too much you'll get less foaming.

As gbackus points out, you could put the water in first and add the APC to it. A little experimenting with measuring cups will tell you where your new fill mark would be. (Hmm, if I feel particularly industrious I might try it myself this weekend.)

You could mix them outside the bottle in a large measuring cup and then pour the mixture in.


PC.

[gbackus]

Originally posted by Detalnewb
Is that how it works, or is it 3 ounces to 27 ounces making the final solution 3:30 or 1:10? 3:33 = 1:11. Not that it REALLY matters, but at work we sometimes have the same discussions.

Dilution ratios are usually water:chemical, so it would read 10:1.

A ratio reads, for every 10 ounces of water, there is 1 ounce of chemical.

So, if you had 11 ounces of product, that is mixed 10:1, you would have 10 ounces of water and 1 ounce of chemical.

To shake things up a bit, lets say you have 10 ounces of product, that has been mixed 10:1, you would have ~9.09 ounces of water, and a ~0.91 ounces of product.

3:27 is 1:9 BTW.

[SiriusRIMZ]

Not that this is relevant or anything, but I find these problems all over the SAT's and ACT's these days.

Ok Sorry to go off on a tangent... back ontopic..

[DavidL]

Andrew

I use an excel spreadsheet. For a 32oz bottle at 10 to 1 put in 29.09oz of water and 2.91oz of APC.

1to1=16.00
2to1=10.67
3to1=8.00
4to1=6.40
5to1=5.33
6to1=4.57
7to1=4.00
8to1=3.56
9to1=3.20
10to1=2.91

[DFTowel]

You'll probably have to do a little searching but you can get spray bottles with all the dilution rations marked on them. You pour the concentrate to the line marked with the desired dilution then you fill with water to a line on the neck. Works perfectly every time.

[gbackus]

Originally posted by DFTowel
You'll probably have to do a little searching but you can get spray bottles with all the dilution rations marked on them. You pour the concentrate to the line marked with the desired dilution then you fill with water to a line on the neck. Works perfectly every time.

However, just so no one get's confused, with Meguiar's bottles, you pour the water to the line, and then fill with chemical to the rib on the bottle.

[DavidL]

If you pour the concentrate in first it tends to foam up some. If you put the water in first then the concentrate you can put the top on then shake it up and you don't make a mess. Also you can get a bottle from Mequiar's. The ratio is marked on the side water first then the concentrate

[DavidL]

Originally posted by gbackus
However, just so no one get's confused, with Meguiar's bottles, you pour the water to the line, and then fill with chemical to the rib on the bottle.

didn't type fast enough