Originally Posted by Buddelje
Dry Rot on Tires
I own a 2016 Coachman Freelander 20CB class C RV. This is a Ford Transit 350HD chassis. It appears I have dry rot on the rear dual axle tires and will replace them.
My question is, besides frequent use, how do you prevent dry rot on tires? Do covers work? I am told to store the unit with wooden boards under the wheels and drive it every month. Will this prevent dry rot? Also, I read about an aerosol spray sealant that if applied monthly will prevent dry rot.
Would appreciate your thoughts as this appears to be a common problem on seldom used RVs.
I have posted on my RVTireSafety blog, with actual data, on the advantages of tire covers. They can drop the tire temperature significantly when the rV is exposed to sunlight.
"Dry-Rot" is a misnomer as the actual problem is the rubber compound has the polymer bonds attacked at elevated temperature. This results in a loss of flexibility which leads to the surface cracking you see.
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. 45 years experience as tire design & forensic engineer. Freelander 23QB on Chevy chassis is my RV. Giving seminars on RV Tire applications (not selling)@ FMCA Conventions. Next March 15-18 2023 Perry, GA