Tyres reacting with wheels

[Rockford]

Hi all. I've got a few kits now where the tyres are causing the wheels to deform and grow little blisters al around the rim. Is there any preventative solution to this issue, ie: clearcoat wheels ? If so, what with? Any help appreciated. 

[Ace-Garageguy]

By far the most reliable solution is to put a layer of BMF on the rim prior to assembling the tire to it.

[Snake45]

29 minutes ago, Ace-Garageguy said:

By far the most reliable solution is to put a layer of BMF on the rim prior to assembling the tire to it.

Yup. Cheap household kitchen foil and Micro Metal Foil Adhesive work just as well as a fraction of the cost. 

I've also found that a coat or two of Future or a WATER-based acrylic paint also works well. I imagine that one of the hardware-store water-based polyurethanes would also do good work. 

[Bugatti Fan]

Bill's advice is pretty sound. Vinyl (tyres) and Polystyrene (wheels) chemically react after some time up against one another. Another instance that I found out to my detriment once that the same can happen when vinyl tyres are loose in a box with other kit parts. Check out your boxed kits to ensure that your tyres are separated into a polythene bag of wrapped in tissue.

[Rockford]

Thanks gents, I'll employ your advice on my next build. I have actually got tyre tread prints left on plastic display cases! 

[Straightliner59]

8 hours ago, Ace-Garageguy said:

By far the most reliable solution is to put a layer of BMF on the rim prior to assembling the tire to it.

Bingo! The only way I know of, to assure things stay proper.

 

[Tom Geiger]

Or swap in modern tires that won’t react!

[Spex84]

I've had good luck slathering the inside of the tire/outside of the wheel with a skim coat of 5-minute epoxy, so the wheel is isolated from the tire. But time will tell!

[jamesG]

I think this may have happened to a few of my old models. Do you happen to have any pics you could share?

[BlackSheep214]

Strip the chrome rims in bleach, rinse in plain water and dry. Repaint them using Molotow Chrome pen. Way quicker than BMF.

[Tom Geiger]

On 7/27/2020 at 10:02 PM, BlackSheep214 said:

Strip the chrome rims in bleach, rinse in plain water and dry. Repaint them using Molotow Chrome pen. Way quicker than BMF.

I don’t believe that will work.  Painted rims etc have reacted. Bare Metal Foil actually puts a thin layer of metal between tire and wheel

[BlackSheep214]

5 hours ago, Tom Geiger said:

I don’t believe that will work.  Painted rims etc have reacted. Bare Metal Foil actually puts a thin layer of metal between tire and wheel

Oops, I may have misunderstood the OP's inquiry. Apologies....

[Greg Myers]

On 7/24/2020 at 7:27 PM, Tom Geiger said:

Or swap in modern tires that won’t react!

what is the demarcation between old and modern ?

 

[Snake45]

46 minutes ago, Greg Myers said:

what is the demarcation between old and modern ?

 

Hard to say. Seems to do more with lots. I've seen AMT Firestone Supremes from the '60s melt wheels, and others of the same vintage (sometimes even the same kit) with no problems whatsoever. Have also seen it with the tires AMT used before the Firestone Supremes (don't remember what they are specifically). 

[Ace-Garageguy]

1 hour ago, Greg Myers said:

what is the demarcation between old and modern ?

I'm old.

Anyone who can't go 15 minutes without checking his phone is "modern".