KLX-109 General Purpose Silicone Weatherproof Sealant

Short Description:

Product Detail

Product Tags

KLX-109 General Purpose Silicone Weatherproof Sealant is a single component, medium modulus, neutral curing sealant with wide usage. It can produce superior adhesion to most building materials without the need of base primer.

Product Features

1. Easy to use: It maintains good consistency under ambient conditions of -25℃ - 50℃ and is easy to extrude for use.
2. Excellent thixotropy and extrudability, it is extrudable at any normal temperature (-40℃ to 100℃).
3. Neutral curing and will not cause corrosion to metal (except copper), coated glass, concrete, marble, granite and other building materials, so it is widely used.
4. Good resistance to ultraviolet radiation, ozone and climate aging.
5. It can form a strong bond with most building materials after curing with excellent adhesion.
Good compatibility with other neutral silicone adhesives.

Main Applications

KLX-109 General Purpose Silicone Weatherproof Sealant is suitable for all kinds of building doors and windows, glass installation, sealing and flat brick joint sealing, including:

1. All kinds of door and window glass installation and joint sealing;
2. Joint filling and sealing of marble (granite), glass and aluminum;
3. Waterproof sealing and installation of various kitchen utensils, sanitary wares ;
4. Many other architectural decoration and industrial joint sealing construction.

KLX-109 Silicone Weatherproof Sealant



Net weight



Carton size

Cartridge type



Black, porcelain white, silver ash, etc., or customized

24 cartridges/carton


Aluminium Foil sausage type




20 sausages/carton


Aluminium Foil sausage type




20 sausages/carton


Shipping load: 1900 cartons per 20ft container without wooden fumigated pallets;

1600 cartons with wooden fumigated pallets.

Usage Restrictions

1. It can not be used as silicone structural sealant;
2. Not suitable for wet or frosted surface construction. It is not recommended for the construction and sealing of aquariums;
3. Not suitable for the newly coated surface including enamel or solvent type.
4. Not suitable for all materials that will seep out grease, plasticizers or solvents, such as the surface of oil-impregnated wood.
5. Not suitable for construction sites that are not ventilated because the sealant needs to absorb moisture from the air for curing.
6. If the surface temperature of the substrate to be lower than 4 °C or more than 60 °C is not recommend to use.
7. When cleaning and handling the sealant, do not use materials that will affect or change the color the sealant.

Construction Advice

1. Clean the interface before using, if necessary, use special solvents to clean and keep dry. If primer is used to enhance the adhesion, it must be constructed after the primer is dried.
2. Completely filling to the joint to ensure bonding on both sides during construction.
3. Adhesive tapes should be affixed to the place where protection is needed, but the tape should not touch the surface to be constructed.
4. Trim immediately before curing to achieve a beautiful appearance.


Safety Attentions

1. Maintain a good ventilation environment at sealant construction site;
2. Keep out of reach of children to avoid eating by mistake;
3. If the eyes are inadvertently exposed to the uncured adhesive, promptly wash with plenty of clean water and ask help from a doctor.

Storage & Validity

KLX-109 General Purpose Silicone Weatherproof Sealant  should be stored in the original packaging under dry and ventilated conditions with temperature at 27 ° C or lower.

The product shelf life is 12 months from the date of production. 

Technical Data Sheet(TDS)

KLX-109 General Purpose Silicone Weatherproof Sealant 








Fine, smooth paste, No agglomeration

Up to standard

 Standard & qualified







Non deforming

Non deforming



≥80 ml/min

≥120 ml/min


Surface drying time

≤3 h

1 h


Tensile modulus


≥0.4 MPa

0.70 MPa


≥0.6 MPa

0.75 MPa


Adhesive property

Under UV irradiation

No damage

No damage


After Cold drawing/hot pressing

No damage

No damage


Definite elongation

No damage

No damage


Definite elongation with soaking

No damage

No damage

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