What Should I Use Around My RV Tail Light When Installing a Replacement?
Updated 12/29/2025 | Published 11/28/2025
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Question:
9.5 L“ X 4.5” W. football shaped with clear light at bottom of light. changing right tail light, brake and turn signal light on 2017 jayco jay flight travel trailer what is best sealant to use around light after mounting? Will use Butyl tape first. Since it will have to be removed to work on light later.
asked by: Alvin C
Expert Reply:
Hello Avlin,
Using butyl tape is a great choice. I would also do a small bead of sealant around the light as well.
Black Sealant: Alpha Systems 1010 Non-Sag Sealant for RVs - Black - 10.3 oz - Qty 1 # AL53KV
White Sealant: Alpha Systems 1010 Non-Sag Sealant for RVs - White - 10.3 oz - Qty 1 # AL28KV
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Alpha Systems 1010 Non-Sag Sealant for RVs - Black - 10.3 oz - Qty 1
- RV Roof Repair
- Sealant
- Non-Sag Sealant
- Metal Roof
- Black
- Alpha Systems
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Kate F.
12/29/2025
Hey Avlin, how did sealing the tail light on your Jay Flight go with the butyl tape and Alpha Systems sealant? Your results could really help others replacing lights on similar trailers. What did you think of the sealant’s finish once it cured?