Resealing hatch caulking

Question

I have to reseal areas on several access hatches and ports on my aluminum sided travel trailer (Vertical / horizontal caulking). No leaks yet but being pro-active. I have always been told that you were not to use any silicone product to do this BUT.. this is what my local RV Repair store uses and is recommending I use. It is made by BOSS products.. (Boss 378) Any comments or opinions before I start on this project?

donn0128 · Answer

I would not.  Dicor or Proflex are the accepted options.  I have tried Proflex and hated working with it.  So Im only using Dicor now.

mortimer_brewst · Answer

Dicor and a bowl of soapy water. If you dip your finger in the water and use it to smooth the joint you'll get better results.

fischer · Answer

Before using your caulk leave the tube in the sun or heat with a heat gun.

wild_card · Answer

Never,ever use silicone.

dave_h_m · Answer

i use silicone all the time.Obviously not on the rubber roof though.Me and some of you guys are not going to live long enough to see the quality silicone deteriorate.  :h

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Resealing hatch caulking

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