Formulated to bond to most common building materials without primer, the Bostik Fill A Gap® Exterior Acrylic Sealant gives a smooth, durable finish that is rain‑resistant shortly after application.

• This sealant is ideal for sealing exterior joints, cracks, and gaps around windows, doors, walls, and skirting boards
• Flexible acrylic formula supports long‑lasting movement and durability
• Strong adhesion to most building materials without the need for primer
• Rain‑resistant shortly after application for reliable outdoor performance
• Low‑VOC formulation helps maintain healthier indoor air quality
• Smooth, paintable finish for professional results
• Not designed to be used in direct sunlight
• This acrylic sealant is easy to apply and clean for efficient use on site

Note: This acrylic sealant is not suitable for PE, PP, PC, PMMA, PTFE, softplastics, neoprene, and bituminous substrates.

The Bostik Fill A Gap® Exterior Acrylic Sealant in White won’t withstand heavy rain and hail during the curing process. Explore our wide range of adhesives and sealants online for more options.