Uploaded July 2026 | Updated September 2026, 2 weeks ago
Cracked or missing pool mastic can allow water to get where it shouldn't and eventually lead to costly repairs. In this quick DIY Short, I replace the old expansion joint material using Sika Pro Self-Leveling Sealant (Sandstone).
This was our first time using this product, and we were very impressed with how easy it was to apply and how great the finished repair looked.
If you're planning to replace your pool expansion joint, check out my full step-by-step tutorial on the channel!
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Cracked or missing pool mastic can allow water to get where it shouldn't and eventually lead to costly repairs. In this quick DIY Short, I replace the old expansion joint material using Sika Pro Self-Leveling Sealant (Sandstone).
This was our first time using this product, and we were very impressed with how easy it was to apply and how great the finished repair looked.
If you're planning to replace your pool expansion joint, check out my full step-by-step tutorial on the channel!
👍 Like • Comment • Subscribe for more DIY home and pool projects.










