
Outer Envelopes
Robbins outer envelopes are designed to fit a wide variety of tire sizes, delivering precise sealing and consistent curing performance. Our intuitive search tools allow you to select the appropriate sealing method, tire size, or casing size, ensuring you identify the exact product number needed for your operation.
Whether you choose by sealing method and tire size or by casing size, Robbins’ outer envelope search system streamlines the ordering process—reducing downtime and minimizing errors in selecting the right envelope.
- Comprehensive range of shapes and sizes for outer envelopes
- Proprietary Compression Molding Technology (CMT) for enhanced durability and flexibility
- Accu-Fit CMT™ design reduces temperature variations and creates a perfect vacuum for strong tread-to-tire bonding
- Hand-built precision models available for specialized applications
- Manufactured in the U.S. for dependable supply
Need help choosing the right size?
Reach out to our team for expert guidance and personalized support.