Sikaflex® 221 is a high-performance polyurethane adhesive sealant designed for a wide range of sealing and bonding applications in commercial vehicle manufacturing and repair

It provides excellent adhesion to a wide variety of common substrates and combines high adhesive strength with permanent elasticity, creating a strong yet flexible bond that can withstand demanding conditions

Sikaflex® 221 is ideal for applications requiring durable, weather-resistant sealing, reliable adhesion, and long-lasting performance across a broad range of professional and industrial applications

NSF-certified for incidental food contact, suitable for applications where food contact is minimal and incidental

Key Features & Benefits:

• Available colours: Black, Grey & White
• One-component formulation – ready to use with no mixing required
• Non-sag formulation for easy application on vertical and overhead surfaces
• High-strength, elastic and durable to accommodate movement and vibration
• Approx. 60 minutes tack-free time at 50% relative humidity
• Non-corrosive
• Low odour
• Excellent resistance to ageing and weathering
• Can be sanded and overpainted
• Supplied with application nozzles

For replacement nozzles click here

Suitable materials include:

• Commercial vehicle bodywork and components
• Metals
• Metal primers
• Paint coatings, including two-component systems
• Ceramic materials
• Plastics

Professional Use:

Sikaflex® 221 is intended for experienced professional users. Before application, testing should be carried out using the actual substrates and conditions to confirm adhesion, compatibility and suitability for the intended application, always follow the relevant manufacturer's technical documentation and application instructions before use
For plastics that may be susceptible to stress cracking, manufacturer compatibility advice should be obtained before use

Product Data Sheet available upon request

Reach Safety Training for Using Diisocyanates
All Professionals and Industrial Users Must Complete a Training Course Before Using Such Products:

Click here for furthur information