Sikaflex 221 Black Strong Adhesive Sealant Sika Car Boat Caravan Motorhome

Sikaflex® 221 Black is a high-performance multi-purpose adhesive and sealant trusted throughout the caravan, motorhome, campervan, automotive, and marine industries. Designed to create strong, durable bonds while remaining permanently flexible, it is ideal for a wide range of installation, repair, and sealing applications.

Once cured, Sikaflex 221 forms a tough rubber-like seal with excellent adhesion to many common construction materials including metals, timber, painted surfaces, ceramics, and selected plastics. Its weather-resistant formulation makes it particularly suitable for external applications exposed to vibration, movement, and changing weather conditions.

Popular for fitting solar panels, rooflights, vents, rails, trims, and other vehicle accessories, Sikaflex 221 provides reliable long-term performance without becoming brittle. It can also be sanded and painted once cured, making it a versatile solution for both professional installers and DIY projects.

• High-strength adhesive and sealant
• Fast-setting formula
• Forms a durable rubber-like seal
• Remains permanently flexible after curing
• Excellent adhesion to a wide variety of materials
• Weather and ageing resistant
• Suitable for interior and exterior applications
• Can be sanded after curing
• Can be painted over
• Non-corrosive formulation
• Low odour
• Suitable for caravans, motorhomes, campervans, vehicles, and marine applications

• Fitting solar panels
• Installing rooflights and vents
• Securing multirails and C-channel rails
• Pop-top roof installations
• General caravan and motorhome repairs
• Bonding trims and accessories
• Marine sealing and bonding applications
• Automotive bodywork repairs

• Aluminium
• Steel
• Primed metals
• Timber
• Painted surfaces
• Ceramic materials
• Selected plastics