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Old 04-03-2018, 07:05 PM   #1
m140i
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BH Auto Foam - Foam lance or pump sprayer?

I have used BH Auto Foam a few times now and the results seem ok, but I'm not so sure I'm using it correctly or getting the same results as some on here by how well some of you rate it.

I think part of my 'problem' (that's if I actually have one ) is that I'm using the standard foam nozzle/bottle that came with my Karcher K2 Pressure washer. I'm not sure of the actual size but its the small one, certainly not a 1Lt bottle).

With the bottle I'm currently using on my K2 I'm kind of just guessing how much to put in the bottle, then I top it up with water, assuming that's correct? I have also seen people on here/other web sites use it in a pump sprayer type device and some using 1Lt bottles on a pressure washer appear to just have some neat in the bottle without adding water in the bottle?

So, having seen a few different ways people have been using it, would any of you on here who use the BH Auto Foam care to comment on how you use it, e.g. in a Foam Lance (if so, are there any recommendation please, so I can stop using the small K2 one if it means being able to work out the ratio easier/better) or, do you use a pump sprayer?

I'm also not 100% sure how to get the correct ratio when using either of the above methods?

Appreciate and pointers as I would be interested to know if I can improve on what I have previously been doing.

Thanks!
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Old 04-03-2018, 07:07 PM   #2
Andyblue
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This might help with working out dilution ratio etc etc...

http://www.detailingworld.co.uk/foru...d.php?t=400542
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Old 04-03-2018, 07:21 PM   #3
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I use Nilfisk and I don’t use BH auto foam - but upgrading the standard nozzle/bottle made a HUGE difference to the amount of foam.
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Old 04-03-2018, 07:42 PM   #4
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BHAF isn't designed to make a thick shaving foam like you get with most other products so always looks thin going on in that regard. It does however clean far better than most other products in my experience, despite not being a thick foam.

It sounds like you have the FJ6 foam bottle with your K2 and if so, this is the same as my current setup. To get the 4-5% panel impact ratio (PIR) that BH recommend you'll need about 360ml in the 600ml lance bottle, with the rest filled with warm water.

BHAF works equally well through a 2l garden pump sprayer and is actually more economical this way, since you only need 40ml of product per litre of water and a single full 2ltr sprayer (80ml of product) will easily do a medium size car, including the wheels.

I'm at the point now where I use BHAF through the garden sprayer even if I'm breaking out the PW to rinse it off, simply because it saves product and I find it easier to get the foam just on the car and not all over the driveway!

Whichever method of application you choose, it's worth mentioning that you can increase/supplement the cleaning power of BHAF by using warm water. I always do this with the sprayer because it's easy and I'll occasionally use my outside hot tap to feed the PW.

Hope that helps you.
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Old 04-03-2018, 07:52 PM   #5
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would he not benefit from a proper lance? i use a nilfisk c130 with a in2detailing lance and fill up 1 inch topped with warm water cleans great but isnt as foamy as others out there
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Old 04-03-2018, 08:22 PM   #6
olliewills
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A better lance will never hurt sure, but in this situation it won't, just by buying one, make BHAF clean any more effectively. It also won't solve his problem, largely because he doesn't actually have one and isn't doing anything 'wrong' per-se. He just needs to know how to mix up BHAF to the correct PIR which he now knows how to do and can do with the tools he has on hand.

I would highly recommend a pump sprayer though. At £3 from Wilko for a 2ltr model they're cheap and are really useful all over the car. They can't blast dirt like a PW sure, but you can gently spray engine bays, door shuts, arches, wheels and even any fragile paint if you have rust/chips etc.

When you add in the fact that using them with BHAF makes it more economical, you end up saving money and get a really useful tool for other purposes. You can even be mobile with a pump sprayer. I take mine to work and use them in the work car park to clean my wheels during lunch for example.
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Old 04-03-2018, 09:45 PM   #7
Peter77
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I use something like this


I add 40ml of BH auto foam for 1 litre of warm water. I've got it down too 2 litres, gets me round my car twice(lower half of car and up the boot). If the car is particularly minging, which it usually is this time of year, I then go over it with a foam through the lance, I'm using obsession wax blizzard, 30ml of that gives a nice thick long dwell over the BH doing its thing underneath.
I'm happy with how well this works for me


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Old 05-03-2018, 02:57 PM   #8
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I use two of these:

http://www.wilko.com/hose-pipes-spri...l/invt/0339854

They're cheap, easy to fly around the car with and plenty of capacity for a single car. I use one for chemicals like BHAF and keep another for just clean water rinsing & wetting up.

@Peter77: What would be great is to see some swab tests of your approach to using BHAF with OW Blizzard on top, versus just using BHAF(pump or lance) by itself and letting it run off at it's natural pace. It'd maybe give us a bit more insight into whether:
A) the BHAF is cleaning the panel any more effectively by being held in place longer by the OW foam.
B) the OW foam is adding anything in terms of cleaning power or is it being blocked by doing so due to the layer of BHAF already on the panel.
C) either one of the products when used by themselves outperforms the other.
D) Are the two products naturally/chemically compatible and do they remain LSP-safe or as LSP-safe when layered together?

Granted D isn't really going to be answered by a simple swab test! I do love though that we all have so many creative ways of using these products. It does go to show that how you use something is just as important as what you use, and that products like this can be used differently depending on if you value efficiency, economy, effectiveness etc.
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Old 05-03-2018, 09:15 PM   #9
Peter77
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My only reason for doing it this way, was I found the BHAF drying out very quickly on the surface of the car when misted on using the pump sprayer. My theory was the thicker snow foam over the top allowed a lot longer for BH to dwell. Gives me plenty of time to do tight areas with brush etc. Never really gave it a thought about the performance of the OW blizzard


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Old 05-03-2018, 10:52 PM   #10
AndyN01
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Pump Sprayer all the way.

Cheapo one from Wilkinsons is fine. Dead easy to get the 4% on the panel ratio.

Doesn't "foam" as such (but there are tweaks that can be made to the pump sprayer) but really does clean - which is what I buy it for.

Good Luck.

Andy.
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