---
title: "What Is Deck-O-Seal? Pool Glossary | Marina Pool Services"
description: "Deck-O-Seal is a brand of flexible joint sealant used between pool coping and the surrounding deck."
url: https://marinapool.multisites.ai/glossary/deck-o-seal
publisher: Marina Pool Services
phone: +1-817-896-1120
quote: https://marinapool.multisites.ai/contact
---

Surfaces and decks

# Deck-O-Seal

Deck-O-Seal is a brand of flexible joint sealant used between pool coping and the surrounding deck.

Deck-O-Seal is a named product in the same family as what many owners call mastic. It stays flexible, so it can move with the deck and the pool as they shift.

The sealant keeps rain and splash water out of the joint. A sound joint helps protect the soil under the deck. Marina Pool Services lists Deck-O-Seal service and joint sealing among its services. The old material is removed and the joint is prepared first, then new sealant goes in. Ask for a quote after an inspection of your joints.

[Marina can helpDeck-O-Seal & Joint Sealing](https://marinapool.multisites.ai/our-services/deck-o-seal)

## Related terms

-   [Pool mastic](https://marinapool.multisites.ai/glossary/pool-mastic)
-   [Expansion joint](https://marinapool.multisites.ai/glossary/expansion-joint)
-   [Coping](https://marinapool.multisites.ai/glossary/coping)

## Need a hand with your pool?

Call or text and tell us what your pool needs. Estimates are free for qualifying services, and same-day estimates are possible when the schedule allows.

[Call (817) 896-1120](tel:+1-817-896-1120)[Get a quote](https://marinapool.multisites.ai/contact)

![A pool technician working on an equipment pad](https://marinapool.multisites.ai/_astro/technician-equipment-pad.BW5xZMNY_Zum1K5.webp)