Underwater Magic Sealant is a high-performance waterproof adhesive and sealant designed for direct application underwater and in continuously wet environments. Based on advanced MS polymer technology, it provides strong adhesion to a wide range of surfaces, including concrete, glass, stone, metal, wood, polyester, fiberglass, PVC and Plexiglas. Its permanently elastic formulation helps create durable seals for swimming pools, spas, water features and demanding wet-area repairs. Available from SMK DXB for professional buyers, maintenance teams and project requirements across Dubai and the UAE.
Product Long Description
Professional Underwater Adhesive and Sealant for Demanding Repairs
Underwater Magic Sealant is a professional-grade adhesive and sealing solution engineered for applications where conventional sealants may struggle with water exposure. The product can be applied directly underwater, making it particularly suitable for swimming pool repairs, spas, fountains, water features and other wet-area maintenance applications.
Its one-component MS polymer formulation provides strong adhesion while remaining permanently elastic after curing. This flexibility helps the seal accommodate movement and maintain a durable bond across compatible substrates.
Underwater Magic Sealant adheres to many common construction and maintenance materials, including metal, concrete, glass, stone, plaster, masonry, natural stone, wood, polyester, fiberglass, PVC and Plexiglas. Correct surface preparation remains essential for reliable adhesion and long-term performance.
The sealant is solvent-free, silicone-free and free from isocyanates. Its non-sagging consistency supports application in joints up to 40 mm wide, while the high elongation capability makes it suitable for joints and repairs exposed to movement.
With a published temperature resistance range of -40°C to +90°C, Underwater Magic Sealant is designed for demanding indoor and outdoor environments. It also offers resistance to chlorine water, seawater, weathering and UV exposure, making it useful for pool and marine-related maintenance requirements.
For procurement managers, facility maintenance teams, swimming pool contractors and marine service companies in the UAE, Underwater Magic Sealant provides a practical solution for bonding and sealing in wet conditions.
SMK DXB supplies industrial, construction, marine and MRO products to professional buyers across the UAE. Contact our team for product availability, technical enquiries and bulk procurement requirements.
Key Features
- Designed for direct underwater application
- High-strength adhesive and sealing performance
- One-component MS polymer formulation
- Permanently elastic after curing
- Excellent adhesion to many dry and damp surfaces
- Solvent-free formulation
- 100% silicone-free
- Free from isocyanates
- Non-sagging consistency for joints up to 40 mm
- Resistant to chlorine water and seawater
- Good resistance to weathering and UV exposure
- Suitable for professional indoor and outdoor applications
Product Benefits
Underwater Magic Sealant allows maintenance teams to carry out selected underwater bonding and sealing work without draining the entire water system. This can help reduce maintenance disruption, water replacement requirements and project downtime.
Its strong adhesion to multiple compatible materials makes it useful for repair and maintenance teams handling varied surfaces. The permanently elastic formulation supports long-lasting sealing where movement or environmental exposure may occur.
The single-component format also eliminates complicated product mixing, helping technicians achieve a more practical application process.
Technical Specifications
| Specification | Details |
| Material | MS Polymer-Based Adhesive & Sealant |
| Size | 290 ml Cartridge; other manufacturer packaging may be available |
| Color | Available in manufacturer-specified colour variants |
| Weight | Refer to supplied product packaging |
| Standard | DIN test methods referenced in manufacturer technical data |
| Certification | Refer to current manufacturer documentation and supplied batch |
| Finish | Elastic, Non-Sagging Seal |
| Operating Temperature | -40°C to +90°C |
| Application Water Temperature | +5°C to +40°C |
| Pressure Rating | Not specified as a pressure-rated sealant |
| Model | Underwater Magic Adhesive & Sealant |
| Brand | Underwater Magic |
| Country of Origin | Manufacturer documentation should be checked for supplied SKU |
| Warranty | Subject to manufacturer and supplier terms |
| Density at 23°C | 1.57 ± 0.03 g/cm³ |
| Shore A Hardness | 58 ± 2 |
| Elongation at Break | 400% |
| Tear Strength | 2.6 N/mm² |
| Skinning Time | Approx. 7 minutes |
| Curing Through | Approx. 2.7 mm after 24 hours; 4 mm after 48 hours |
| Joint Capability | Non-sagging up to 40 mm wide joins |






