Sealants - Fiber Group LLC

Cellulose fiber is a widely used functional additive in sealant formulations, helping improve strength, stability, workability, and long-term performance. Manufacturers incorporate cellulose fibers into construction sealants, industrial sealants, roofing compounds, caulks, and specialty formulations to enhance crack resistance, reduce shrinkage, improve sag control, and provide reinforcement throughout the cured material.

Because cellulose fibers form a three-dimensional network within the sealant matrix, they help improve cohesion and dimensional stability while maintaining desirable application characteristics. Cellulose fiber can also assist in controlling viscosity, reducing settling, and improving the overall consistency of the finished product.

Fiber Group LLC manufactures high-quality cellulose fibers for sealant manufacturers seeking reliable reinforcement, improved formulation performance, and sustainable plant-based additives. Our cellulose fibers are available in custom fiber lengths and processing options to meet the unique requirements of industrial and construction sealant applications.

Learn more about sealant industry standards from the Sealant, Waterproofing & Restoration Institute (SWRI) and construction materials resources from the ASTM International.

FAQ's

Why is cellulose fiber added to sealants?

Cellulose fiber is added to sealants to improve reinforcement, reduce shrinkage, increase crack resistance, and enhance the overall durability and stability of the finished product.

How does cellulose fiber improve sealant performance?

Cellulose fibers create an internal reinforcing structure that improves cohesion, sag resistance, dimensional stability, and application characteristics while helping prevent settling and separation.

What types of sealants use cellulose fiber?

Cellulose fiber is commonly used in construction sealants, roofing sealants, industrial sealants, caulks, waterproofing products, joint fillers, and specialty adhesive-sealant formulations.

Is cellulose fiber environmentally friendly?

Yes. Cellulose fiber is derived from renewable plant-based materials and is commonly used as a sustainable alternative to synthetic reinforcing fibers in many sealant applications.