SV120 High-performance 100% Silicone Waterproof Coating
FEATURES
1. Solvent free, water free, Isocyanate free
2. Single component, ready to use
3. Permanently elastic, durable
4. UV resistance weatherproof
5. Brushable, Sprayable
6. Low VOC, Odorless, and Eco-friendly
COLOURS
White, Blue, Gray, Red, Transparent, etc
PACKAGING
20kg/pail or OEM packing
BASIC USES
1.It is used for sloping roof, wall surface and especially various irregular roof.
2.Basement, kitchen, wash room, reservoir, swimming pool and decorative roof requirement.
3.Cement board, asbestos product, ceramic, floor tile, wood floor, air-raid shelter, color steel tile tunnel, subway, concrete floor and so on.
TYPICAL PROPERTIES
These values are not intended for use in preparing specifications
| Base | Silicone |
| Density |
1.1±0.05g/ml |
| Viscosity (25℃ mpa.s) | 25000~30000 |
| Ph | 7 |
| Full dry time |
24h/1-2mm |
| Tack free time |
About 20-30min |
| Solid Content | 99.7% |
| Tensile strength |
1.59N/mm2 |
| Elongation at break | >200% |
| Hardness |
20-30 Shore A |
| VOC | 46g/L |
| Pulling force MP | 0.6,100%A/B |
STORAGE AND SHELF LIFE
Manufacturer
Shanghai Siway Curtain Material Co.Ltd
No.1 Puhui Road ,Songjiang Dist,Shanghai,CHINA Tel: +86 21 37682288
Fax:+86 21 37682288
Q: How does the SV120 Silicone Coating perform against long-term UV exposure and extreme weather?
A: SV120 is formulated with a 100% silicone polymer base that creates an inorganic chemical bond. Unlike acrylic or polyurethane coatings that degrade, crack, and chalk under sunlight, SV120 provides permanent UV resistance and remains flexible in temperatures ranging from -40°C to 80°C. It offers continuous, seamless waterproofing protection with a service life of over 20 years.
Q: Can SV120 be applied to roofs with ponding water issues?
A: Yes, absolutely. One of the greatest advantages of 100% silicone over water-based acrylic coatings is its ability to withstand permanent ponding water. SV120 will not soften, bubble, or degrade even under prolonged standing water, making it the ideal choice for flat roofs, irregular roofing structures, and gutters.
Q: What substrates are compatible with SV120, and does it require a primer?A: SV120 exhibits excellent primerless adhesion to most common building materials, including aged concrete, color steel tiles (metal roofing), weathered single-ply membranes (EPDM, TPO), modified bitumen, and wood. However, for heavily corroded metal surfaces or chalky concrete, we recommend a thorough pressure wash and a specific primer test to ensure maximum bonding strength.
Q: Is SV120 easy to apply? What are the curing conditions?
A: SV120 is a single-component, ready-to-use coating that requires no mixing on-site. It can be easily applied via brush, roller, or airless spray equipment. It cures by reacting with moisture in the air. The tack-free time is approximately 20-30 minutes, and it achieves a full dry state within 24 hours (at 1-2mm thickness, depending on local humidity and temperature).
Q: Is this product environmentally friendly and safe for indoor/confined space applications?
A: Yes. SV120 has a high solid content of 99.7% and a ultra-low VOC level (only 46g/L). It is solvent-free, water-free, and odorless, making it compliant with strict international environmental regulations. It is perfectly safe for both exposed outdoor roofing and interior waterproofing projects like basements, kitchens, and reservoirs.
Q: What are the packaging options, and can you provide custom OEM packaging?
A: Our standard packaging is a heavy-duty 20kg/pail, which is optimized for safe ocean freight and container loading. As a direct manufacturer, we also offer flexible OEM packaging options (such as customized logos, private labels, or different volume capacities) to support your local brand distribution.
Q: Do you provide free samples for quality testing before a bulk order?
A: Yes, we understand that material verification is crucial for engineering projects. We can provide free samples for your technical evaluation and laboratory testing. Please click our Contact Us button or message us directly via WhatsApp to arrange sample shipping.






