Pool mastic is the flexible sealant in the joint between your pool coping and deck. Deck-O-Seal is a specific material used for this. Marina Pool Services inspects cracked or separating joints, removes deteriorated mastic, prepares the joint, and seals it. We serve Grapevine and nearby Northeast Tarrant County.
Pool mastic, also called flexible pool joint sealant, fills the joint between the coping and the surrounding deck. Deck-O-Seal is a specific joint-sealing material commonly used for pool decks. Homeowners often say "mastic" for this type of sealant. The joint has to handle normal movement. The sealant sits between the coping and the deck and has to flex as materials respond to temperature. Marina services both pool mastic and Deck-O-Seal based on the joint's condition.
How does Marina remove old mastic and prepare the joint?
Old, cracked, loose or separated material may need to be removed first. Marina then cleans out dirt and debris and inspects the joint. Covering damaged material does not fix what is underneath, so preparation comes before any new sealant goes in. Marina inspects the joint for cracking, separation and deterioration while it works. This also helps catch any separate structural issues.
How is new Deck-O-Seal applied?
Once the joint is ready, Marina applies Deck-O-Seal or another suitable flexible joint material to fit your deck and joint layout. The goal is a clean, continuous joint that handles movement instead of acting as a rigid link. Afterward we check coverage and contact with the joint surfaces. Marina applies the sealant to suit your deck and joint layout, then checks the finished seal for consistent coverage and contact with the surfaces.
When should a joint be looked at?
Cracked, loose, separated or crumbling mastic is a sign the joint needs attention. If a separate structural issue exists around the joint, that should be considered first. Call (817) 896-1120 and Marina will inspect the joint and tell you what it needs. Early attention can keep a small joint problem from growing. Marina also checks the surrounding area for related problems.
Questions about deck-o-seal and joint sealing
Ask us anything else: call or text (817) 896-1120.
What is the difference between pool mastic and Deck-O-Seal?
Pool mastic is the common name for flexible joint sealant between the coping and deck. Deck-O-Seal is a specific material often used for it. Marina services both. The terms are used loosely, but Deck-O-Seal is the specific material and mastic is the everyday word for the sealant.
Can I just caulk over cracked mastic?
Covering damaged material does not fix what is under it. Old mastic usually needs removal and the joint needs cleaning before new sealant goes in. A pro can inspect the joint and recommend the right approach. Marina removes deteriorated material and prepares the joint first, then applies new sealant.
Why does pool deck mastic crack?
Decks and coping move with temperature and weather, and sealant ages. Over time mastic can crack, shrink or separate. Regular checks help you catch it early. Marina can inspect your joint and explain what it needs and why.
Do you do other pool deck work?
Marina handles pool mastic and Deck-O-Seal joint sealing. For other deck work, call (817) 896-1120 and ask what we can help with. Marina services the joint between the pool and deck. Call (817) 896-1120 to ask what we can do for your project.
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.
