Description
Product Overview
The 9900 Sealant Waterproof is a high‑performance transparent silicone caulk engineered by REATIFUL for demanding exterior and interior applications. Formulated with a premium polymer blend, the sealant retains its elasticity across an extreme temperature range of -50°C to 200°C, ensuring that it will not become brittle in cold winters or lose its integrity under intense summer heat. Its composition includes UV‑blocking agents and water‑repellent additives, delivering a barrier that resists sunlight degradation, rain, snow, and humidity. The product ships in a 12.8‑ounce cartridge with a precision‑flow nozzle that delivers a consistent bead, reducing the risk of air bubbles and providing a clean, professional finish. Package dimensions of 9 × 3 × 3 inches make it easy to store and handle on job sites of any size.
![[Product front view showing all components]](https://www.oanex.store/wp-content/uploads/2026/07/7c3e2b64762a4938a7723162def4e1d7.jpg)
Usage
Designed for a broad spectrum of sealing tasks, the 9900 Sealant Waterproof excels on roofs, walls, gutters, windows, doors, and a variety of flat or curved surfaces. Its strong adhesion works on metal, glass, tile, concrete, and many painted substrates, making it suitable for residential repairs, commercial façade maintenance, and industrial equipment sealing. The sealant’s flexibility allows it to accommodate structural movement, preventing cracks from re‑opening after installation. Whether you are sealing a roof shingle seam, filling a wall crack, or waterproofing a bathtub joint, the product’s easy‑apply nozzle and smooth curing process enable both DIY enthusiasts and seasoned contractors to achieve reliable results quickly. For outdoor projects, the UV‑resistant formula protects against sun‑induced chalking, while the waterproof barrier guards against moisture infiltration that can lead to mold or structural damage.
Why Choose Us
REATIFUL has built a reputation for delivering durable, high‑quality adhesives and sealants that meet rigorous industry standards. The 9900 Sealant Waterproof undergoes comprehensive testing for temperature resilience, tensile strength, and long‑term weathering, ensuring that each cartridge performs consistently across diverse environments. Our manufacturing process incorporates environmentally responsible practices, and the product is free from hazardous solvents, making it safer for users and the surrounding ecosystem. In addition to product reliability, REATIFUL provides responsive technical support and a clear warranty policy, giving customers confidence that any concerns will be addressed promptly. The transparent finish also offers aesthetic flexibility, blending seamlessly with a wide range of colors and materials without detracting from the visual appearance of the sealed area.
Key Features
- Maintains flexibility from -50°C to 200°C, preventing cracks in extreme climates
- Provides a waterproof, UV‑resistant barrier that protects against rain, snow, and sun damage
- Adheres strongly to metal, glass, tile, concrete and painted surfaces for versatile use
- Precision nozzle delivers a smooth, bubble‑free bead for a professional finish every time
- Backed by REATIFUL technical support and warranty for peace of mind after purchase
FAQ
Can the sealant be applied in cold weather?
Yes, the 9900 Sealant Waterproof remains flexible down to -50°C, allowing you to apply it in cold conditions without the risk of premature hardening. For best results, ensure the surface is clean and dry before application.
Is the product safe for indoor use?
Absolutely. The silicone formulation is low‑odor and free of harmful solvents, making it suitable for indoor applications such as bathroom fixtures, kitchen countertops, and interior wall cracks.
How long does it take to cure?
Initial skin formation occurs within 30 minutes, while full cure is typically achieved in 24 hours under normal temperature and humidity. Curing time may vary slightly based on ambient conditions.
What colors are available?
The sealant is offered in three colors—White, Black, and Clear—allowing you to match or complement the surrounding material for a seamless appearance.
Can I paint over the cured sealant?
Yes, once fully cured, the silicone surface can be painted with most acrylic or latex paints. It is recommended to lightly sand the area for optimal paint adhesion.








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