Packaging Size: 300 ml cartridge
Packaging Type: Tube
Colours Available: Black, White, Grey, Clear
Brand: Dowsil
Cure Type: Neutral Cure
Compatible Materials: Glass, Aluminium, Coated Metals, Ceramic Tiles, Painted Surfaces
Country of Origin: Made in India
Availability: In Stock
In the modern construction landscape, the demand for a “universal” yet high-performance sealant is higher than ever. Dowsil Neutra Plus Silicone Sealant is a high-grade, one-component, neutral-curing silicone engineered to bridge the gap between general-purpose sealing and specialized architectural glazing.
Unlike standard sealants that may cause damage to sensitive modern building materials, Dowsil Neutra Plus is formulated to be “Substrate-Safe.” At Poly Prime Industry, we recognize that for large-scale residential and commercial projects in Delhi, reliability is paramount. That is why we maintain a massive ready stock of Dowsil Neutra Plus 300ml cartridges, ensuring your project never stops due to material shortages.
The “Neutra Plus” designation signifies a superior Neutral-Cure (Alkoxy) system. This advanced chemistry is what sets this product apart from traditional acetoxy (acid-cure) silicones.
Non-Corrosive Formula: During the curing process, Dowsil Neutra Plus does not release acidic vapors. This makes it 100% safe for use on materials like anodized aluminum, galvanized steel, copper, and even silver-backed mirrors without causing any corrosion or discoloration.
Excellent Shelf Life & Stability: Dowsil’s proprietary technology ensures that the sealant remains stable in the cartridge and performs consistently from the first drop to the last.
Low Odor Application: For interior projects—such as luxury apartment fit-outs or office partitions—the low-odor nature of Neutra Plus ensures a comfortable environment for both workers and clients.
Dowsil Neutra Plus is a “high-adhesion” sealant. It forms a powerful, primerless bond to:
Glass & Glazed Surfaces: Ideal for high-end window glazing.
Metals: Anodized and powder-coated aluminum, stainless steel, and lead.
Plastics: Excellent compatibility with uPVC window profiles.
Masonry: Bonds well to ceramic tiles, vitrified tiles, and concrete surfaces.
Buildings in Delhi-NCR face thermal expansion due to the extreme heat. Dowsil Neutra Plus is designed to be permanently flexible. After curing, it becomes a high-modulus silicone rubber that can stretch and compress without cracking, peeling, or losing its airtight seal.
Whether exposed to the direct afternoon sun or heavy monsoon rain, Dowsil Neutra Plus does not degrade. It is highly resistant to UV radiation, ozone, and atmospheric pollutants, making it the perfect choice for both interior and exterior joints.
Professionalism is in the details. The thixotropic (non-slump) paste consistency of Neutra Plus ensures that even on vertical window joints or overhead skylights, the sealant stays exactly where it is applied. It tools easily to a smooth, high-gloss finish that enhances the overall look of the building.
The versatility of Dowsil Neutra Plus makes it a “must-have” for several construction sectors:
This is the primary use for Neutra Plus. It provides a flexible, weatherproof barrier between the window frame (Aluminum, uPVC, or Wood) and the wall. It prevents air leaks, dust ingress, and water seepage.
Used extensively in the workshop during the assembly of windows and doors to seal miter joints and hardware fixings, ensuring the entire unit is structurally sound and leak-proof.
Ideal for office glass partitions where a clean, transparent, and low-odor seal is required. It bonds glass-to-glass and glass-to-metal with extreme clarity and strength.
Suitable for sealing movement joints in building facades, cladding systems, and interior flooring where a neutral-cure, high-elasticity sealant is mandatory.
A go-to solution for filling gaps around electrical conduits, plumbing fixtures, and trim work where a high-quality, non-corrosive seal is needed.
| Feature | Technical Detail |
| Product Name | Dowsil Neutra Plus |
| Cure Type | Neutral Alkoxy (Non-Corrosive) |
| Packaging | 300 ml Cartridge |
| Colors Available | Black, White, Grey, Clear |
| Skin Formation Time | 10-20 Minutes |
| Curing Rate | 2-3 mm / 24 Hours |
| Service Temp Range | -40°C to +150°C (Cured) |
| Hardness (Shore A) | Approx. 20-25 |
To achieve a 100% waterproof and aesthetic seal, follow these industry-best practices:
Surface Prep: Clean the joint with a lint-free cloth. Use a solvent (like Isopropyl Alcohol) on non-porous surfaces to remove any grease or oils.
Masking: Use masking tape on both sides of the joint for a razor-sharp, professional finish.
Application: Cut the nozzle to the desired bead size. Apply with a steady hand using a high-quality caulking gun.
Tooling: Tool the sealant immediately (within 10 minutes) using a spatula. This ensures the silicone is pressed deep into the joint for maximum adhesion.
Remove Tape: Pull the masking tape off immediately after tooling, while the sealant is still wet.
Choosing the right supplier is as important as choosing the right sealant. At Poly Prime Industry (Delhi), we pride ourselves on being more than just a wholesaler.
100% Genuine Dowsil Products: We guarantee original stock. In an industry where “copycat” products are common, we stand by the authenticity of every cartridge we sell.
Fresh Inventory Management: We know that silicone’s performance is tied to its shelf life. Our stock is rotated constantly to ensure you always get the freshest material.
Wholesale Pricing for Large Projects: We specialize in B2B and project-based supplies. Our pricing for Dowsil Neutra Plus is the most competitive in the Delhi market for bulk orders.
Fast Logistics & Ready Stock: Located in Krishna Nagar, Delhi, we are perfectly positioned to provide quick delivery to sites in Delhi, Noida, Gurgaon, and Faridabad.
Q1. What is the difference between Dowsil Neutra Plus and Dowsil 789?
Dowsil 789 is a specialized “Weatherproofing” sealant designed primarily for high-exposure exterior facades. Dowsil Neutra Plus is a more versatile “Neutral” sealant ideal for general glazing, perimeter sealing, and fabrication where a balance of performance and ease of use is required.
Q2. Can I use Dowsil Neutra Plus on a mirror?
Yes. Because it is neutral-curing, it will not attack the silver backing of the mirror, unlike acetic silicones.
Q3. Is Dowsil Neutra Plus paintable?
No. Like all high-purity silicones, it is not paintable. However, it is available in Black, White, Grey, and Clear to match most building finishes.
Q4. Where can I find a bulk supplier for Dowsil in Delhi?
Poly Prime Industry is your trusted source. We maintain significant ready stock for immediate project requirements.
Don’t compromise on the quality of your seals. Dowsil Neutra Plus offers the peace of mind that only a global leader in silicone technology can provide. Whether you’re a window fabricator or a project engineer, this sealant is your best ally against leaks and environmental damage.
