Replacing Pools Mastic

autumnr

New member
Mar 21, 2021
2
Dallas, TX
Moved from here.
It likes like our expansion joint is similar to the cantilevered decking @bdavis466 mentions in: Expansion Joints and Coping. If this is the case, how far under the decking does the mastic go? I can access the mastic above the tile line just fine, but wonder how far back wonder the decking the mastic will go. Am I able to remove the mastic and reapply in a uniform way or would it be suggested to plan to replace the coping?
 
Last edited by a moderator:

ajw22

Gold Supporter
TFP Guide
Jul 21, 2013
24,667
Northern NJ
Pool Size
35000
Surface
Plaster
Chlorine
Salt Water Generator
SWG Type
Pentair Intellichlor IC-60
It likes like our expansion joint is similar to the cantilevered decking @bdavis466 mentions in: Expansion Joints and Coping. If this is the case, how far under the decking does the mastic go? I can access the mastic above the tile line just fine, but wonder how far back wonder the decking the mastic will go. Am I able to remove the mastic and reapply in a uniform way or would it be suggested to plan to replace the coping?
Welcome to TFP.

The mastic should just go 1/4”-1/2” into the gap.