Litokol Litosil is a one-component silicone sealant in the color Silver 1, in a 300 ml cartridge. It is used to seal permanently elastic joints on floors, walls, and facades, both indoors and outdoors. The sealant is ready to use and adheres to most building materials without a primer.
Color & Ambiance
Silver 1 is a halftone deeper than Silver 0: clearly gray, still understated. Matches medium-gray tiles.
Product & Application
Litosil cures under the influence of humidity and then remains elastic, so that the joint absorbs movement instead of cracking. The cured sealant is waterproof and highly resistant to weather, aging, and UV radiation.
- Expansion joints on floors, walls, and facades
- Connection joints in healthcare environments
- Swimming pools in ceramic and porcelain stoneware
- Bonding and insulating glass elements
- Sealing profile glass
- Wet areas indoors and outdoor applications
Note the limit: this version cures with acetic acid. For marble and natural stone, choose Litosil Neutro, which is compatible with these materials according to ISO 16938-1 and does not discolor the joint edges.
Substrate & Compatibility
The surfaces must be completely clean, dry, and free of dust, grease, oil, and old paint. Porous substrates should be cleaned mechanically, for example with a wire brush, to remove loose particles. If you are repairing an existing joint, completely remove the old sealant before reapplying.
- Adheres to most building materials without primer
- In case of adhesion problems on certain substrates, a specific primer is required
- Not in combination with butyl, EPDM, neoprene or bituminous and insulating felt
- Not paintable
- Not suitable for full-surface bonding
Check in advance that the building materials with which the sealant will come into contact are mutually compatible. If further work is to be carried out later on the joint, check that the released substances do not affect the sealant.
Processing
Screw the plastic nozzle onto the cartridge and cut it diagonally to the desired width. Place the cartridge in a manual or pneumatic gun and spray the sealant into the joint in one motion, without introducing air. Finish the joint within the open time - after that, the outside will close.
- Process between +5 °C and +40 °C, ideally between +15 °C and +25 °C
- Skin formation after approximately 15 minutes
- Cures approximately 2 to 3 mm per 24 hours
- Fully loadable after 5 days
- Ensure good ventilation during application and curing
The curing time increases with the thickness of the joint. If the layer needs to be thicker than 15 mm, first contact the manufacturer's technical department. Store the cartridge in a cool, dry, and dark place during warm weather, and use an opened cartridge within a reasonable period. Avoid contact with solvents while the sealant is curing.
Key Features
- Waterproof and permanently elastic
- Stretches up to 250% before breaking
- Absorbs a total deformation of 25%
- Resistant to temperatures from -40 °C to +150 °C
- Good resistance to weather, aging, and UV radiation
- Adheres to most building materials without primer
- Can be smoothed exceptionally well
Technical specifications
| Property |
Value |
| Type |
Acetic acid-curing silicone sealant |
| Content |
300 ml cartridge |
| Class |
25 LM according to ISO 11600 F |
| Shore A hardness |
22 according to ISO 868 |
| Elongation at break |
250% according to ISO 8339 |
| Tensile strength |
Minimum 0.7 N/mm² according to ISO 8339 |
| Modulus of elasticity at 100% |
Minimum 0.4 N/mm² according to ISO 8339 |
| Allowable deformation |
25% |
| Specific gravity |
0.99 kg/dm³ |
| Skin formation |
Approximately 15 minutes |
| Curing |
2 to 3 mm per 24 hours |
| Processing temperature |
+5 °C to +40 °C |
| Operating temperature |
-40 °C to +150 °C |
| Shelf life |
24 months, store cool and dark, frost-free |
Frequently Asked Questions
How many meters of joint can I get from one cartridge? That depends on the size of the joint. For a joint 6 mm wide and 5 mm deep, 300 ml will cover approximately 10 meters; for a joint 10 mm wide and 10 mm deep, it will cover approximately 2 meters.
Can I use this sealant on marble or natural stone? No. This version cures with acetic acid, which can cause discoloration of the joint edges. For these materials, use Litosil Neutro.
Can I work over an old sealant joint? No. The old sealant must be completely removed before reapplying, otherwise the new layer will not adhere reliably. You also cannot paint over it, so choose the right color immediately.
When is the joint loadable? The sealant cures approximately 2 to 3 mm per 24 hours and is fully loadable after five days. For a deep joint, this will take longer.
