SikaSeal-175 – Neutral silicone sealant mold-resistant for bathroom, kitchen, and tiles

SikaSeal-175 is a professional neutral silicone sealant, developed to ensure durable and clean seals in humid environments such as bathrooms, kitchens, and laundries.
Its non-corrosive neutral curing formula offers excellent adhesion on numerous building materials, such as ceramic, glass, aluminum, and tiles, often without the need for a primer.

Formerly SikaSil C

It is resistant to mold formation, does not yellow over time, and maintains elasticity even in extreme conditions. Perfect for sealing joints between tiles, fittings, sinks, showers, and sanitary ware.

Main features:

• Neutral and odorless formula

• High resistance to mold and moisture

• Excellent adhesion on ceramic, glass, aluminum, and glazed surfaces

• Non-corrosive, solvent-free, and low VOC emissions

• Resistant to UV rays and weathering

• Permanent elasticity (movement up to ±25%)

• Available in white, transparent, gray, and black

Fields of use
• Sealing joints in bathtubs, showers, kitchens, and laundries
• Joints between tiles and walls
• Connections between sanitary fixtures, sinks, and countertops
• Frames, window fixtures, and surfaces in glass or aluminum
Preparation and application
1. Ensure that surfaces are dry, clean, and free of dust or grease.
2. Cut the nozzle and apply the sealant continuously, avoiding air bubbles.
3. Smooth immediately with a spatula or moistened finger before a surface skin forms.
4. Remove any fresh residues with a neutral detergent; hardened product can only be removed mechanically.
Application conditions:
• Temperature: from +5 °C to +40 °C
• Skin formation time: about 35 minutes
• Hardening: ~3 mm every 24 hours
• Thermal resistance: from –40 °C to +150 °C
Useful tips
• Avoid use on bituminous surfaces, PE, PP, or PTFE.
• Not paintable.
• In very dry environments, ensure a minimum of humidity to promote cross-linking.
• Clean tools immediately after use.

Empty and perfectly dry cartridges can be recycled as plastic