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Old 07-07-2010, 11:01 PM   #1
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Default 12th on Concrete: what tyres?

http://www.morcc.com.au/smf/index.ph...sa=item&id=255

This is a brand new surface, which I believe to be basically smooth concrete.

Some of us want to run 12th scale on it, but where to start in terms of tyres is difficult to know.

I'm fairly certain caps will be necessary. But who is making caps these days, where do you get them, and which foam/cap compound is a good starting point?
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Old 07-07-2010, 11:57 PM   #2
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I don't know that even caps are going to give you useful traction on a surface that smooth. I have heard that there was a time when foam tires were coated in liquid silicon and allowed to cure to allow racing on polished wood surfaces (like a basketball court). This would require a dust free surface to be sure. Hope that helps.

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Old 07-08-2010, 12:35 AM   #3
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Our indoor concrete track we used sugar water and it kinda sorta worked. Traction was good until the sugar coated the tires and they looked more like glazed donuts. You are really going to have a hard time getting traction even with caps on a surface like that without some sort of treatment. Problem is the treatment will stick to the tires about as much as it does to the ground.
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Old 07-08-2010, 01:31 AM   #4
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Maybe set up wheels with silicon o-rings and 4 degrees rear camber!!
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Old 07-08-2010, 02:16 AM   #5
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1 assume by 12th he means 12th pan car...in which case I'd be really interested in how he would get camber in the rear suspension
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Old 07-08-2010, 02:23 AM   #6
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1 assume by 12th he means 12th pan car...in which case I'd be really interested in how he would get camber in the rear suspension
magic? thats my only suggestion.

oh, and that surface actually looks like painted concrete? fantastic!

what do you want traction for anyway?

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Old 07-08-2010, 02:26 AM   #7
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I has something like this in mind...
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Old 07-08-2010, 04:11 AM   #8
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Ok, yes, there might not be enough grip for anything sensible. Magic might be the best option. But let's assume that someone actually sells something that will work. Can we try and complete this sentence:

If anything will work it will be _________.
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Old 07-08-2010, 04:23 AM   #9
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sugar water or some other traction spray on the surface
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Old 07-08-2010, 04:25 AM   #10
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Quote:
Originally Posted by Radio Active View Post
Ok, yes, there might not be enough grip for anything sensible. Magic might be the best option. But let's assume that someone actually sells something that will work. Can we try and complete this sentence:

If anything will work it will be _________.
...boral paint on the track surface
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Old 07-08-2010, 04:38 AM   #11
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Seriously, try coating an old set of tires evenly with Shoo Goo or silicone sealant(RTV). Use an expired(of course) credit card/gift card to apply and smooth.
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Old 07-08-2010, 05:36 AM   #12
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duct tape?

wait, double sided tape?
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Old 07-08-2010, 09:56 AM   #13
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Some sticky hair spray or vax perhaps.
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Old 07-08-2010, 03:05 PM   #14
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Quote:
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Seriously, try coating an old set of tires evenly with Shoo Goo or silicone sealant(RTV). Use your wifes' credit card/gift card to prevent bankruptcy.
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Old 07-08-2010, 09:38 PM   #15
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Ok, so coat tyres with silicone rubber then. Is there any way to tune the grip level from there apart from the shore of the foam the silicone goes on top of? Do different silicone coatings offer more or less grip, and if so is there a guide as to how to tell? I presume we're not going to want to have the same grip levels front and rear.
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