SBR Latex and Flexibility in Carpet Backing

Carpet backing needs to provide sufficient bonding while maintaining the flexibility required by the finished carpet.

The balance between these properties can depend on the SBR latex and the complete formulation.

Factors That May Affect Flexibility

Technical teams may consider:

• SBR polymer characteristics
• Polymer content
• Filler loading
• Coating weight
• Drying conditions
• Plasticizing components
• Formulation ratio

A formulation with a higher filler level, for example, may require different latex characteristics or formulation adjustments.

Evaluating the Final Carpet

Flexibility should be evaluated on the finished carpet rather than only on the liquid latex.

Testing can include:

• Handle
• Bending behavior
• Recovery
• Adhesion
• Backing integrity

The suitable SBR grade depends on the carpet type and required final properties.

RUICO supplies SBR latex for carpet backing applications and supports technical teams with sample evaluation and formulation trials.