[Closed] My cars are displayed in curios on glass shelves. When I do periodic cleaning or

Not only have I noticed marks on the glass.If you leave them sitting on clear plastic it leaves a permanent spot that almost looks as if the plastic has disolved or something. I too am curious as to what causes this.

Same here. I'm not worried. In fact, it adds to the realism . . .

. . . since the tires of our 1:1 cars do the same thing to our painted garage floor.

Richard is right.

The tires leach something (sorry, I'm not a chemist!) that not only leaves a stain on glass, but actually dissolves some plastic and leaves tire marks.

Maybe you should do what some new car dealers do and put tin foil under the tires.

Mine don't, unless they have mud on them or something like that.

I've seen it on my glass shelves but not from every car. And it minimal.

I've only had that problem with one manufacturer...

I have displayed my cars in the DM display cases for ten to fifteen years and have never had a problem with the tires except for the Ebbro cars. The Ebbro tires almost stuck like glue! BUT they didn't leave any stains.

It may be the quality of plastic used and/or the environment---sun, cold/heat, etc.

My displays were in a room away from direct sunlight and no temperature extremes.

I see it but on the bottom wooden shelf on the DM 10 car cases. I have seven 10 car cases and one 21 car case and the problem is on most of them, but not all. Also, I've not noticed this on the acrylic shelves on these cases. The spots on the wooden shelf turn black or dark brown - looks bad. I should buy some mirror glass for them to protect them, I guess.

It's caused by the leaching of the oils in the rubber.

Remember, rubber is an oil product. The oil will seep slowly from the tires to the surface they are on. Real 1:1 tires do the same thing if left stationary long enough.

I see the same thing on the wood base of display cases I built.

Since I used a mahogony stain and satin finish, it is not as noticable. I've noticed the same thing with 1/18 and 1/16 scale models. I've actually noticed a slight residue just rolling them on the kitchen table. Buffs out or blends in with just rubbing with my finger or with a little furniture polish.

This very topic was discussed last year to some extent by a few members that are in the know. There is no cure for this problem that I know of or remember reading about. But like David said it has to do with the makeup of the tires themselves, which is the culprit.

Steven I also noticed over time some tires even developed flat spots!!

I'm not saying this to be funny, but if you look at the bottom of the tires in question I can almost guarantee that you will see flat spots where the tire was in contact with the shelve be it glass, wood, plastic etc.. This dosn't bother me all that much as once a slight flat spot has developed it actually helps the model from "rolling" off the shelf.

Steve this is why you don't leave them on a wood base.

I put pieces of glass on the bottom shelf of all my DM cases. Wood causes the most leaching of tires. Some of the 1/18 models in plastic based cases have leached so bad the tires have stuck to base.

My DM and FM models both leave marks on the glass and when I go to move the model, sometimes the tyres will actually stick a little bit..... I have notices that some models do not react like this bot I haven't noted which ones. Maybe their tyres have a different compound makeup...

I notice marks too. The glass cleans up very easily and it does not seem to be hurting the tires themselves. I use a normal window cleaner.