10 oz. Joint Sealant Cartridge
Returns on all eligible orders
All sale items are final sale once open
Seal It Right — Every Time
Strong. Flexible. 100% Watertight.
The HYDRO-BLOK Joint Sealant is the only adhesive engineered specifically for use with HYDRO-BLOK shower system components — delivering the perfect bond for a fully watertight and long-lasting installation.
Built for Performance
Formulated with a low-VOC polyurethane blend, HYDRO-BLOK Joint Sealant provides a strong, flexible seal that moves with your system — preventing cracks, leaks, and failures over time.
Whether used on seams, joints, or accessories, it ensures your waterproofing system performs exactly as designed.
Why Contractors Trust HYDRO-BLOK Joint Sealant
Engineered for HYDRO-BLOK Systems – The only approved sealant for use with all HYDRO-BLOK products.
Flexible & Durable – Expands and contracts with natural movement.
20-Year Performance Warranty – Proven protection you can rely on.
Low VOC Formula – Safe, professional-grade adhesive.
Watertight Seal – Guarantees leak-free performance.
Please Note: HYDRO-BLOK will not provide any warranty if a substitute adhesive is used in place of HYDRO-BLOK Joint Sealant.
Price
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Joint Sealant Cartridges 10 oz.- $18.58
Next Day Pickup
Next Day Pickup
Need your Hydro-Blok products fast? With ATS Supply’s Next Day Pickup, you can place your order today and pick it up at our warehouse tomorrow—ready when you are.
✅ Order Cut-Off: Orders must be placed by 1:00 PM on a business day to qualify for next-day pickup.
✅ Pickup Time: Orders will be ready after 1:00 PM the following business day.
✅ Order Confirmation: Once your order is processed, you’ll receive a notification to schedule your dedicated pickup time.
✅ Identification: At pickup, you must present valid photo ID and proof of purchase. If someone else is collecting on your behalf, please inform us when scheduling your pickup appointment.
✅ Uncollected Orders: Orders not collected within 7 days will be returned to our distribution center. A 10% restocking fee will be deducted from your refund.
Simply choose Store Pickup at checkout, and we’ll have your Hydro-Blok system, tools, or accessories ready on time. It’s the fastest way to get your materials and keep your project moving.