Polyurea Floor and Yellow Stains

[abisson]

Hello everyone!

So I did my floor last fall (3 coat Polyurea), and I was re-doing my garage all winter. So it was just last week that I was able to move my car in. As I was moving my car this morning outside, I noticed these 4 spots, where the tires were. I tried everything... Green Cleaner, brushing, steam... can't seem to go away :/ I mean, it removed it a bit, but not 100%.

Small piece of information: The garage is heated through the floor. Meaning that under the Polyurea, there is the concrete, and under the concrete, there are water pipe. Could it be that the heat from the floor did a chemical reaction with the rubber? Note that the car is a 911 GT3 with "winter" tyres... could it be the compound?

Thanks!

 

[Shea]

Hello everyone!

So I did my floor last fall (3 coat Polyurea), and I was re-doing my garage all winter. So it was just last week that I was able to move my car in. As I was moving my car this morning outside, I noticed these 4 spots, where the tires were. I tried everything... Green Cleaner, brushing, steam... can't seem to go away :/ I mean, it removed it a bit, but not 100%.

Small piece of information: The garage is heated through the floor. Meaning that under the Polyurea, there is the concrete, and under the concrete, there are water pipe. Could it be that the heat from the floor did a chemical reaction with the rubber? Note that the car is a 911 GT3 with "winter" tyres... could it be the compound?

Thanks!

The in-floor heating has nothing to do with it. It's caused from the dreaded plasticizers that leach from high-performance and softer compound winter tires. Polyurea and polyaspartic coatings resist it much better than epoxy, but it can still happen, particularly if a car sits for long periods. The best way to help prevent it is to clean where the tires rest more often.

 

[abisson]

The in-floor heating has nothing to do with it. It's caused from the dreaded plasticizers that leach from high-performance and softer compound winter tires. Polyurea and polyaspartic coatings resist it much better than epoxy, but it can still happen, particularly if a car sits for long periods. The best way to help prevent it is to clean where the tires rest more often.

oh wow really?! Couple of questions:
1- Do SUMMER tires have the same problem?
2- How can I clean this further... I tried everything, but maybe I missed something.
3- For next winter, could Rubber Tire Mats or something prevent this? Something like this

Thanks again!!!

 

[Shea]

oh wow really?! Couple of questions:
1- Do SUMMER tires have the same problem?
2- How can I clean this further... I tried everything, but maybe I missed something.
3- For next winter, could Rubber Tire Mats or something prevent this? Something like this

Thanks again!!!

The amount of plasticizers that leach from tires depends on the manufacturer and the purpose of the tire. High performance and quality all-season tires tend to be the biggest offenders. Some people report that one car with a certain tire will begin to accumulate marks while another car parked next to it does not

We have an article below that lists the methods for trying to clean these marks.

https://allgaragefloors.com/tire-marks-epoxy-flooring/

Mats are a great way to prevent tire marks. We prefer polyvinyl since it won't leave marks on the coating. Don't use any with a soft, foam-like synthetic rubber backing. They leave marks.

 

[abisson]

The amount of plasticizers that leach from tires depends on the manufacturer and the purpose of the tire. High performance and quality all-season tires tend to be the biggest offenders. Some people report that one car with a certain tire will begin to accumulate marks while another car parked next to it does not

We have an article below that lists the methods for trying to clean these marks.

https://allgaragefloors.com/tire-marks-epoxy-flooring/

Mats are a great way to prevent tire marks. We prefer polyvinyl since it won't leave marks on the coating. Don't use any with a soft, foam-like synthetic rubber backing. They leave marks.

Thanks so much!
My installer just talked to me about getting an additional urethane base coating to protect it... thoughts on it?

Thanks!

 

[Shea]

Thanks so much!
My installer just talked to me about getting an additional urethane base coating to protect it... thoughts on it?

Thanks!

It doesn't matter how many coats are applied when it comes to protection from staining. The polyurea clear coat you have now will protect it slightly better than polyurethane.

 

[LegacyIndustrial]

Shea's article may have this already but jic.

From the dollar store he used LA Totally Awesome All-Purpose Concentrated Cleaner. He let it soak first and then lightly scrubbed it. He then did a second application a bit later with a combination of that and LA Totally Awesome Oxygen Orange. Again, he let it sit and then lightly scrubbed it. He said it got rid of 85-90% of it.

 

[abisson]

Thanks all!
I might just go the "cheap" route and have cardboard put under my wheels whenever I leave for a long period ahahha
Thoughts?

 

[Shea]

Thanks all!
I might just go the "cheap" route and have cardboard put under my wheels whenever I leave for a long period ahahha
Thoughts?

Cardboard works just fine if the car is staying parked for extended periods