This product is not available in United States. Please use the product search or contact us.

LC 707

WACKER® LC 707 is a one-part, neutral silicone sealant with outstanding adhesion to most building substrates. specially, it is a product for exclusive use of exterior joint because weather resistance and durability is excellent. The movement allowance is about ±25%.         


  • solvent free
  • non sag
  • excellent anti-mold
  • ready gunability at lowe(+5 °C) and high(+40 °C) temp.
  • lower-modules 
  • godd adhesion with various materials
  • excellent weather resistance


All the information provided is in accordance with the present state of our knowledge. Nonetheless, we disclaim any warranty or liability whatsoever and reserve the right, at any time, to effect technical alterations. The information provided, as well as the product's fitness for an intended application, should be checked by the buyer in preliminary trials. Contractual terms and conditions always take precedence. This disclaimer of warranty and liability also applies particularly in foreign countries with respect to third parties' rights.

Application processing


The substrate areas that will be in contact with          the sealant must be clean, dry and free of all loose   material such as dust, dirt, rust, oil and other contaminants.

Non-porous substrates should be cleaned with a solvent and clean, lint-free, cotton cloth. remove residual solvent before it evaporates with a fresh clean, dry cloth.

For application from cartridges cut thread open, fix nozzle on top and cut to required bead size.

The sealant can be applied in beads or layers. It requires moisture in order to cure.


To avoid contamination and damage, use masking tape on the side of joint area.


Deopandion on substance, LC 6692 Primer is strongly recommended. Brush at least 1~2 times on non-porous surface and 2~3 times on porous surface.

Sealing & Tooling

Fully fill in cross point or side edge point of the joint without empty space without bubbles.

Tooling must be done before curing of on the surface is finished. spread sealant with proper spatula.

Removing masking tape & Curing

Get rid of masking tape and clean up remained sealant. Protect from dust and pollutant to have qualified surface and Avoid being shocked and contact on the surface of sealant while curing


KS F 4910 F-25LM

Eco-label certificate

Restricion on use

It is the user's responsibility to test the compatibility of the sealant with the adjoining materials. Incompatible substances like coating materials (paints, varnishes and glazes) or organic plasticizer containing rubbers (EPDM, butyl and neoprene) can lead to discoloration or other impairments like loss of adhesion of the sealant. Materials in direct contact with the applied sealant like cleaning agents and materials in indirect contact like gaseous emissions can damage the sealant in its function or change its appearance. Because of the multitude of these materials. Wacker cannot make a general statement to the compatibility of materials with the sealant. In case of doubt the user shall conduct appropriate preliminary tests.

The time until complete curing may be extended at lower temperature, lower humidity, increasing film thickness or by lowvolume of air exchange.
The use of tooling agents should be avoided if possible. Otherwise, water or a diluted solution of a little neutral soap oralcohol in water should be sparingly applied.
LC 707 must not be used for insulating glass applications.
LC 707 should not be used in contact with metals such as lead, copper, brass or zinc due to corrosion.
LC 707 may be discolored in contact with some organic elastomers, e.g. EPDM, APTK and neoprene.
LC 707 should not be used for sealing of aquaria.
LC 707 is not recommended for use on natural stone, such as marble, granite, quartzite, as it can cause

LC 707 is not recommended for structural glazing bonding.
LC 707 should not be used in contact with metals such as lead, copper, brass or zinc due to corrosion.
LC 707 is not recommended for sealing of aquaria or for longer-term use under water.
LC 707 is not suitable for food grade applications where the joints are likely to come in contact with food.
LC 707 is not suitable for use as a mirror adhesive.


Cartridge: 300ml (25ea/1box)

Drum: 200kg

Shelf life

 - 12 months from production date for Cartridge

 - 24 months from produtction date for Drum



Should use before the expire day.

Avoid sun light, dry and cool at 5~30 °C is recommended.

Sales and support

Wacker Chemical Corporation
3301 Sutton Road
Adrian, MI 49221-9397
United States
+1  888  922-5374 (Phone)

How can we help you?

  • Do you need help in choosing a product or do you require technical support? If so, please contact our experts.
Ask a question

Would you like a product sample?

You can request a product sample here.

Request sample

More products

Please choose an application for viewing your product matches.


My media

My favorites

My products