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Old 01-13-2019, 10:15 AM   #1
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Join Date: Jul 2018
Location: Virginia Beach
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Resealing seams

I know when working with regular caulk or silicone sealant you must remove old stuff first as the new will not stick to the old. Is that needed when using the dicor lap sealant on your RV seams or is just cleaning the old sealant really well enough to place new sealant over? Please advise. Thank you.

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Old 01-13-2019, 10:46 AM   #2
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Depends on the condition of the old sealant. many just clean it well and apply on top and edges.

2019 Alpine 3651RL
2016 F350 CC DRW
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Old 01-13-2019, 11:32 AM   #3
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As stated, if it isn't all cracked and peeling, apply new over the old. Clean with either denatured alcohol, or Fantastik spray cleaner and let dry.

2012 Copper Canyon 273FWRET being towed by a 1994 Ford F350 CC,LB,Dually diesel.
Airlift 5000 bags, Prodigy brake control, 5 gauges on the pillar.Used to tow a '97 Jayco 323RKS.

Now an RVIA registered tech. Retired from Law enforcement in 2008 after 25+ yrs.
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