Heat-Resistant Silicone Sealant
KSK-15X
High-quality, one-component, heat-resistant neutral-cure silicone sealant for household, renovation and construction applications.
Recommended for sealing, bonding and securing joints and components in stoves, fireplaces, chimneys, ovens, cooktop heating plates and other parts exposed to high temperatures.
Excellent adhesion to most construction materials: concrete, bricks, ferrous and non-ferrous metals, wood, PVC, aerated concrete, ceramics, gypsum plasterboards, glass, clinker, porcelain, expanded polystyrene (EPS), enameled surfaces.
Remains elastic under continuous exposure to temperatures up to 300°C. Does not corrode concrete, natural stone or metals. Resistant to most detergents and cleaning agents, UV radiation, weathering and temperature changes. Thixotropic: does not run or sag in the joint. Forms a skin quickly. Resistant to aging.
KSK 152, KSK 153, KSK-152, KSK-153Colors
-
Black
KSK 152
KUSSIL280T-2 -
Red
KSK 153
KUSSIL280T-3
Benefits
- For indoor and outdoor use.
- Service temperature range: –40°C to +300°C.
- Chemically neutral, does not corrode concrete or metals.
- Tack-free time is 10-12 minutes, sealant curing rate is 2 mm per day (at +23°C and 50% relative humidity).
- Resistant to UV radiation, cleaning agents and detergents.
- A cartridge covers 20-22 linear meters at a bead diameter of 4 mm.

Additional information
| Colors | Black KSK-152, Red KSK-153 |
|---|---|
| Application | Specialty sealing |
| Full product name | Heat-resistant silicone neutral sealant 300°C |
| Chemical base | Silicone |
| Product type | Sealants |
| Pack size | 280 ml |
| Components | 1-component |
| Information on ingredients | Silicone polymer, aliphatic hydrocarbons, fillers, pigments, curing agent, adhesion promoters. |
| Storage | Store in tightly closed original packaging at temperatures from +5°C to +25°C in a dry place. During transportation, freezing down to -20°C is allowed for a total duration of not more than 30 days. |
| Shelf life | 2 years |
| Series | KUDO® HOME |
Application
- Apply at an ambient temperature from +5°C to +40°C. The sealant temperature should be +20°C to +25°C.
- Apply the sealant to clean, dry and degreased surfaces.
- Protect adjacent surfaces with masking tape for a neat finish.
- Cut off the cartridge tip above the thread and screw on the nozzle. Remove the nozzle cap and cut the nozzle at a 45° angle to match the joint width.
- Apply with a cartridge caulking gun.
- Tool the sealant in the joint with a damp spatula. Remove the masking tape immediately after smoothing.
- The mixture will be cured within a day, and during this time it can be slightly heated.
- After curing, small cracks might appear in the surface, due to setting shrinkage. In this case, an additional sealant coat should be applied.
- Remove the sealant from tools and surfaces using a solvent (white spirit, or acetone) before the sealant has cured.
- Remove cured sealant mechanically.
Important: do not use for aquariums or submerged joints. Do not paint over the sealant.


















