The Hansil Expanding Filler Foam is a high-quality 750ml solution designed for filling, sealing, and insulating small gaps and cracks. This polyurethane foam features a unique expanding property, which allows it to fill spaces effectively and efficiently without the need for excessive application. The Hansil Expanding Filler Foam is perfect for use in construction, home improvement, or DIY projects where superior adhesion and insulation are required.