Sealant silicone CERESIT CS25 280 ml — cocoa color (MPN 1573783)

CERESIT CS25 is a neutral curing silicone sealant in a 280 ml cartridge, presented here in a cocoa color. It is formulated for sealing joints and gaps in building construction and renovation tasks where a flexible, waterproof connection is required. The product bonds to many common materials used in windows, doors, sanitary fittings and façades, and is suitable for both interior and exterior applications when a color-matched silicone finish is needed.

Advantages

The neutral cure formulation reduces the risk of corrosion on sensitive substrates and minimises odour during application. CERESIT CS25 provides long-lasting elasticity and water resistance, maintaining an effective seal against moisture and air infiltration. Its cocoa color offers aesthetic integration with brown or wood-toned surfaces, avoiding the need for additional painting in many cases.

Suitable for

• Sealing perimeter joints around windows and door frames
• Sealing sanitary fixtures and connections in bathrooms and kitchens
• Filling expansion joints and small cracks in façades and cladding
• Joining materials such as glass, ceramics, painted wood, and many plastics

When it may not be suitable

This silicone is not intended for structural glazing or load-bearing adhesive joints where high mechanical strength is required. It may not adhere reliably to certain low-surface-energy plastics (for example some polyethylene or polypropylene types) or surfaces contaminated with oil, grease or dust. For applications that require painting over the cured sealant, compatibility with specific paint systems should be verified first.

Key specifications

• Form: neutral curing silicone sealant
• Volume: 280 ml cartridge
• Color: cocoa
• Application: interior and exterior use
• Properties: flexible, waterproof, elastic after curing
• Substrate compatibility: glass, ceramics, painted wood, many construction materials

How to use

Ensure joint surfaces are clean, dry and free from dust, grease or loose particles. Cut the cartridge tip to the required bead size and apply with a standard caulking gun. Tool the sealant within the skin-forming time to achieve a smooth finish and ensure good contact with joint faces. Allow the sealant to cure fully before exposing to water or heavy mechanical stress; curing time depends on joint size, temperature and humidity.

What to consider before purchase

• Confirm the cocoa color matches your surface or design requirements.
• Verify substrate compatibility, especially for low-energy plastics or painted surfaces.
• Consider expected joint movement and choose joint dimensions within the product’s elasticity range.

Usage recommendations

Use on clean, degreased surfaces and avoid applying in wet or freezing conditions. For best results in exterior applications, install within recommended temperature ranges and allow adequate curing time before exposure to rain. Store cartridges in a cool, dry place and use within the manufacturer’s recommended shelf life.