A slender, flexible foam material, typically polyethylene, is utilized as a space filler in various construction and sealing applications. It is commonly employed to create a backing for sealants, controlling sealant depth and preventing three-sided adhesion, which can compromise the seal’s integrity. This product is frequently sourced from large home improvement retailers, providing accessibility to both professionals and DIY enthusiasts.
The advantages of using this filler material include cost-effectiveness, ease of installation, and compatibility with numerous sealant types. Its application contributes to improved joint performance, extended sealant lifespan, and reduced material waste. Historically, alternative methods for controlling sealant depth were less precise and more labor-intensive, making this product a significant advancement in sealing technology.