25 Years Guarantee Clear Sealant Curtain Walls NP121 Structural Silicone Sealant (Oxime)

Model: NP121

Certification: ISO9001 ISO14001 OHSAS18001

Brand: Daote

Packaging: 300ml/280ml Cartridge, 590ml Sausages, 190L/Drum

NP121 is a one-component, neutral-curing silicone sealant specifically for joints and caulking curtain walls. It is adhesives to metal, plastic, steel, wood, glass, and other materials used in skylight and roofing. The movement capacity of NP121 is 25%, it's an excellent material for skylights and roofing tops.

Zhaoqing Haohong New Material Co., Ltd (Haohong as below), established in 1993, is one of the leading bonding & sealing solution providers in China. We research, develop, manufacture, package, and distribute a wide range of high-quality adhesive and waterproofing products to carter for various market segments. Specially formulated for the professionals, our comprehensive range of adhesive, sealant and waterproofing products are the preferred solutions in the following categories:

-       Hardware

-       Construction & Building (Façade/Window/Door/Sanitary/Plumbing/Tiles/Ceramics)

-       Waterproofing

-       Electronic Appliance

-       DIY Market

Model: NP121

Brand Name: Daote

Curing System: Oxime Curing

Usage: Metals, concrete, ceramic tiles, granite, stone and so on

Place of Origins: Zhaoqing City, Guangdong Province, China

Materials: Silicone

Shelf Life: 9 Months

Storage: Cool and dry storage place at a temperature below 27°C

Lead Time: 12 – 20 days

OEM or ODM: Available

Application: Sealing

Certificates: ISO9001 / MSDS / ROHS

Application Standard: 1MG GB 16776-2005

Shipment: Non-dangerous Carriage


- Apply to a clean and dry surface, free of dirt, wax, oil and grease.

- Apply with manual caulking or applicator gun.

- Remove excess sealant with a wet cloth.

- Can’t be used the product, if the temperature is below 4°C or above 40°C on the surface of the material.

- It is necessary to make an on-site capacity and adhesive test before using.

- Avoid breathing too much vapour.

- Keep out of reach of children.

Cartridge: 230ml / 250ml / 260ml / 280ml / 300ml

Sausage Package: 590ml

Drum Package: 200L

20GP: 1800 Cartons with pallets; 1900 Cartons without Pallet

Which standard does NP121 Silicone Sealant meet?

The NP121 follows the standard of 1 G GB 16776-2005 which is the high standard for structural silicone sealant performance.


Why the requirement for Silicone Sealant is the strictest?

Reducing the possibility of break:

Usually, the quality of silicone sealant is one of the important factors for the façade and large windows assembly. The façade assembly has high pressure. Thus, the quality of structural silicone sealant is necessary which can reduce the possibility of breaking.



Usually, the structural silicone sealant is used for interior and exterior façades and windows. Thus, one of the significant abilities of structural silicone sealant is weather resistance, discolouration, and durability. If the users used a sealant that does not conform to the standard, the possibility of redecoration will be higher. Even, using the defective products would be increasing the possibility of safety problems.


The 1 G GB 16776 has ruled the tensile adhesion ability in different temperatures, weather variety and immersion in the rain. In long term weather variety and immersion in water, it regulated the sealant’s tensile adhesion ability must be large than 0.45MPa.


Long-life working:

The NP121 sealant used in the façade, curtain walls, and large windows is not possible to redecoration frequently, especially for outdoor use. Thus, we must choose quality silicone sealant, which decreases the possibility of refurbishment. The 1 G GB 16776 has an anti-aging test, which ensures whether the sealant can be used for long working life. Reducing the possibility of refurbishment.


There are many reasons that encourage users to use quality structural silicone sealant. Thus, we recommend the company use the products which conform to the standards.


Acetoxy Silicone Sealant VS Neutral Silicone Sealant

Recently, the acetic cured and neutral cured silicone sealants have been widely used in the construction and decoration industry. But many users are still not clear about the difference between acetic curing and neutral curing.


The smell of acetic silicone sealant is greater than the neutral silicone sealant.


The main purposes of acetic and neutral silicone sealants are different. Most building materials can be sealed by a neutral silicone sealant, and the sealant will not corrode the materials. Furthermore, the acetic silicone sealant is the most suitable for glass bonding. If we used the acid silicone sealant in metal, that may lead to corrosion of the materials, even change colour.

Curing Time:

The curing time of acetic silicone sealant is the fastest. The Tack-Free time is about 5 to 15 minutes, which is convenient for the construction process. Usually, the curing time of a neutral silicone sealant is slower than the acetic silicone sealant.






smooth paste without bubbles and particles


Available colour

Clear / customized color


Curing System



Specific Gravity



Skin Time (hours)



Full Cure Time (days)



Tensile Strength (Mpa)



Ultimate Tensile Strength %



Hardness (Shore A)



Working Temperature(℃)



Extrusion Rate (ml/min)



Shelf life

9 Months



25 Years





Zhaoqing Haohong New Material Co., Ltd.

We are always providing our customers with reliable products and considerate services.


If you would like to keep touch with us directly, please go to contact us

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