Xqh123 Deli 9900 Neutral Silicone Weather Proof Sealant for Construction and Repair

• Customization: Available
• Application: Construction
• Bonding Function: High Temperature Resistant Adhesive
• Model NO.: 9900
• Color: White
• Composition: Organic Material
• Morphology: Water Emulsion
• Transport Package: Carton
• Specification: 500ml
• Trademark: DELI
• Origin: China
• Production Capacity: 1000

Product Description

Product Description

1.Neutral Curing & Non-Corrosive: Cures to a flexible rubber without releasing acidic substances, making it safe for use on metals (like copper, aluminum), marble, and granite without risk of corrosion.
2.Excellent Weather Resistance: Outstanding resistance to sunlight (UV), ozone, rain, snow, and extreme temperatures (-50°C to +150°C), ensuring long-term performance and durability for exterior applications.
3.Superior Adhesion: Bonds well to a wide range of common construction materials including glass, aluminum, ceramics, painted surfaces, and most plastics.
4.Permanent Flexibility: Remains elastic after curing, accommodating the natural expansion, contraction, and movement of building joints without cracking or losing adhesion.
5.Wide Range of Applications: Suitable for both interior and exterior sealing, waterproofing, and bonding tasks in construction, industrial maintenance, and home DIY projects.

Specification

Brand	DELI
CAS No.	Mixture
Color	White, Transparent, Black, Gray, etc. (Commonly White)
Additives	UV Resistant, Mold Resistant, Adhesion Promoter
Application	Sealing and weatherproofing joints in construction, metal, glass, stone, etc. Suitable for interior and exterior use.
General Composition	Silicone Polymer (20-40%), Calcium Carbonate (40-60%), Crosslinker & Additives (5-15%)
Specification	300ml cartridge, 500ml cartridge, 20 pcs/carton, etc.

Application Scenarios

Construction & Curtain Walls: Sealing joints in precast concrete panels, metal/glass/stone curtain walls.
Windows & Doors: Weatherproofing and airtight sealing around window and door frames.
Metal Roofing & Gutters: Sealing seams and joints in metal roofs and rainwater systems.
Bathroom & Kitchen: Sealing around bathtubs, sinks, and countertops (Note: Not for continuous underwater immersion).
Home Appliance & Automotive: Sealing and gasketing for some appliances and automotive parts.

How to use

1.Surface Preparation: Ensure the surface is clean, dry, firm, and free of dust, oil, grease, and loose particles.
2.Application:

Cut the nozzle of the cartridge at a 45-degree angle to the desired bead size.
Load the cartridge into a caulking gun.
Apply an even, continuous bead of sealant into the joint or gap.
3.Tooling:

Within the skin-forming time (usually 5-15 minutes), use a tooling tool or a wet finger to smooth the sealant surface to ensure good contact and a neat appearance.
Immediately remove excess sealant with a cloth.
Curing: The sealant forms a skin in about 15-30 minutes and cures through to the core in 24 hours or more, depending on temperature, humidity, and joint depth.

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FAQ

Q: Is Deli 9900 sealant paintable?

  A: Most neutral silicone sealants, including this one, are not recommended for painting as most paints do not adhere well to the silicone surface. If painting is required, please check the product specification or choose a specially formulated paintable sealant.

Q: What is the difference between neutral and acidic silicone sealants?

  A: Acidic (acetoxy) sealants cure quickly with a vinegar-like odor and are corrosive to certain metals and carbonate materials (like marble). Neutral sealants cure without odor and are non-corrosive, making them suitable for a wider range of materials.

Q: Can it be used for aquariums or underwater sealing?

  A: No. Deli 9900 is a weatherproof sealant, not a specialized aquarium or sanitary sealant. It is not designed for continuous immersion in water.

Q: What is the shelf life?

  A: Typically 12 months when stored in a cool, dry place (below 27°C) in its original, unopened packaging.