Rubber Boot Care
The sun's UV rays and heat can cause fading and early breakdown of the rubber compound. It may lead to damage such as as flaked, cracked, or excessively dry rubber, it is important to condition your boots regularly. Use a rubber conditioner after frequent use or every couple months. The conditioner should be applied liberally with a soft cloth on clean, dry boots. Wipe away excess and allow the boots to dry overnight.
Always clean your boots before conditioning, especially if there is visible dirt and mud on them. This will allow the conditioner to reach the rubber. Use a wet rag or sponge to clean the entire exterior of your boots.
When not in use, keep your boots in an insulated area like a finished basement or closet. If the boots are left outside or in an uninsulated garage, the rubber will shrink and grow with the temperature change from day to night. This could cause cracking in the rubber.
For small hole repairs and other minor repairs to rubber boots, Muck Boots USA recommends the use of a clear, waterproof, marine sealant that can be purchased at your local hardware store.