Best Way To Clean Mold Or Dirt From Slide Out Seals
Updated 01/12/2026 | Published 08/29/2024
Question:
5th wheel trailer. The rubber on each side of the side outs have a black mark or mold on them. I cant get the markings off. Any Suggestions? Thank you.
asked by: Peter M
Expert Reply:
Hello Peter. If your slide out seals are moldy you could try using a mild bleach/water solution to clean them and kill the bleach. You could also try a more mild cleaner like 409 spray for dirt or other markings. If the seals are beyond saving they will need to be replaced. The best way to find the correct replacement is to remove a portion of the seal, measure the side profile and find a match.
Product Page this Question was Asked From
Rubber Wiper Seal with Track for RV Slide Out - Stick On - 15' Long x 3-3/4" Wide
- RV Slide Out Parts
- Seals
- Wiper Seal
- Stick-On
- 3-3/4 Inch Wide
- 15 Feet Long
- Black
- Steele Rubber
more information >
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Jesse M.
1/12/2026
Hey Peter, how did things go with cleaning the slide out seals on your 5th wheel trailer? Were you able to get the markings off or did you end up replacing the seals? Your update could make it easier for the next person with the same issue.