Tacky Tape® SM7191 Gray 1/2″ x 1/8″ Vacuum Bag Sealant Tape – 25′ Roll
Tacky Tape SM7191 by Tacky Tape is a professional-grade vacuum bag sealant tape available in 1/2″ x 1/8″ x 25′ Roll format. Designed for use on Vacuum Bags, Composite Layup Tools, Autoclave Processing, it delivers reliable performance, long-lasting adhesion, and specialized protection across a wide range of industrial, commercial, and technical applications. Gray in color, this product is trusted by engineers, procurement professionals, and maintenance teams worldwide who demand consistent, specification-grade tape performance in every application.
| Attribute | Detail |
|---|---|
| Manufacturer Part Number (MPN) | 71911639-GRY |
| Brand | Tacky Tape |
| Product / Model Name | Tacky Tape SM7191 |
| Color | Gray |
| Package Size | 1/2″ x 1/8″ x 25′ Roll |
| Product Type | Vacuum Bag Sealant Tape |
| Specification | N/A |
| Application Surfaces | Vacuum Bags, Composite Layup Tools, Autoclave Processing |
Technical Information
Tacky Tape SM7191 is a gray, butyl-based vacuum bag sealant tape providing an alternative to the standard yellow SM5142, formulated for composite manufacturers who prefer gray-color sealant tape for workflow identification, product differentiation, or specific process control requirements. The non-curing butyl compound conforms to tool edges, parting lines, and bag fold geometry to maintain a complete vacuum seal throughout the cure cycle. The 1/2″ x 1/8″ standard cross-section and 25′ roll are consistent with other standard vacuum bag sealant tape dimensions used in aerospace, marine, and sporting goods composite manufacturing.
Why Choose Tacky Tape SM7191?
- Gray Color Alternative — Gray sealant tape for process differentiation from standard yellow
- Non-Curing Butyl Formula — Remains tacky and peel-able throughout the cure cycle
- Airtight Vacuum Seal — Conforms to tool edges and bag folds for complete vacuum integrity
- Standard 1/2″ x 1/8″ Profile — Industry-standard dimensions for vacuum bag composite layup
- 25′ Production Roll — Standard length for aerospace and industrial composite operations
Frequently Asked Questions
Q: What is Tacky Tape SM7191 Gray used for?
A: Tacky Tape SM7191 Gray is used for vacuum bag sealing in composite manufacturing — for prepreg autoclave curing, vacuum infusion, and vacuum bagging processes where a gray-color sealant tape is preferred over standard yellow for process identification.
Q: What is the MPN for Tacky Tape SM7191 Gray 1/2″ x 1/8″?
A: The Manufacturer Part Number (MPN) is 71911639-GRY.
Q: What is the difference between Tacky Tape SM5142 BY (Yellow) and SM7191 (Gray)?
A: Both are 1/2″ x 1/8″ butyl vacuum bag sealant tapes with the same standard cross-section. The primary difference is color — yellow for SM5142 and gray for SM7191. Some composite manufacturers use different colors to distinguish sealant tapes for different materials, cure temperatures, or process steps.
Q: What temperature range does SM7191 Gray handle?
A: Consult the current Tacky Tape SM7191 product datasheet for the specific maximum autoclave or oven cure temperature rating suitable for your composite processing requirements.
Q: Can SM7191 Gray sealant tape be used with all bag film types?
A: Tacky Tape sealant tapes are compatible with standard nylon and polyester vacuum bag films. For specialty bag films (PTFE-coated or high-temperature films), verify compatibility with the Tacky Tape SM7191 datasheet or contact your distributor.
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