ALPHASEAL
®
Compounds engineered for cap liners and seals
ALPHASEAL compounds are built on decades of applied expertise in EVA, TPE, and PVC -- designed to deliver reliable sealing performance across a wide range of beverages, closure types, and processing conditions
ALPHASEAL is a registered trademark
Designed with low taste and odor properties
Why Choose ALPHASEAL?
Proven Sealing Materials for Beverage Closures
Reliable sealing is critical to protecting product integrity, shelf life, and brand reputation. ALPHASEAL materials are formulated to balance seal performance, processing efficiency, and regulatory considerations, enabling customers to select the right compound for their specific application requirements.
​
These compounds are:
-
Formulated with ingredients sanctioned for indirect food contact
-
Designed for low taste and odor
-
Latex-free and Bisphenol‑A free
-
Engineered to meet torque and seal integrity requirements
-
Suitable for cold-fill and hot-fill conditions
-
Available with EVA, TPE, or PVC polymer base
-
Often custom formulated to include features like oxygen scavenging, foaming agents (semi-puff), etc.
Characteristics & Performance Attributes
ALPHASEAL® compounds are engineered to deliver consistent, repeatable performance in demanding sealing applications, offering:
​
Dependable Sealing Performance·
Designed to maintain seal integrity across carbonated, still, and other beverage applications.
​
Material Versatility
EVA, TPE, and PVC grades available in a range of hardness levels to support diverse closure designs and liner geometries.
​
Food Contact Support
Formulated with indirect food-contact ingredients and supported by analytical and sensorial testing.
​
Processing Flexibility
Compatible with extrusion compression and extrusion injection processes for efficient, scalable manufacturing.
​
Application-Specific Innovation
Grades available with oxygen-scavenging technology, foaming agents (semi‑puff), and other features – custom formulated to meet specific customer and application requirements.
Application Driven. Production-Ready.
ALPHASEAL compounds are used across a broad range of beverage packaging applications where sealing reliability and regulatory alignment are essential. Typical applications include:
​
-
Plastic cap liners for carbonated soft drinks
-
Crown cap liners for beer and beverages
-
Twist-off and pry-off metal closures
-
Wide-diameter liners for milk and cold-filled juice
-
Closures for mineral water, juice, beer, wine, tea, milk, sauces, and foods
Materials are supported by Alphagary’s global development and manufacturing capabilities, enabling a smooth transition from formulation development to commercial production. Our teams work closely with customers to understand end-use requirements and adapt existing materials—or develop new formulations—as needed.
​
This includes:
-
Mechanical and physical property testing
-
Pilot production and scale-up support
-
Analytical validation to de-risk material selection and processing
Find the perfect ALPHASEAL compound for your application
We invite you to explore our compound series ALPHASEAL. Browse off-the-shelf materials to understand our capabilities, ask our experts to help choose a material based on your required criteria, and contact us for data sheets (TDS, SDS), technical questions and product recommendations. We're here to help.
This chart represents an overview only. Many grades are not listed here. Please contact us if you need a material or features not listed.
Material Name | Polymer | Application | Hardness | Specific Gravity |
|---|---|---|---|---|
ALPHASEAL 173 | TPE | Beer crown liner | 86A | 0.92 |
ALPHASEAL 1923 | EVA | Mineral water, fruit juice | 92A | 0.92 |
ALPHASEAL 1983 (255H) | TPE | Wide diameter PP, LDPE, HDPE, milk, cold-filled juices | 70A | 0.92 |
ALPHASEAL 22-309 B OX | TPE | Oxygen scavenging for hot-fill fruit juice | 96A | 0.94 |
ALPHASEAL 22-310 B OX | TPE | Oxygen scavenging for beer | 88A | 0.97 |
ALPHASEAL 221 | TPE | Hot-fill liner | 56A | 0.90 |
ALPHASEAL 240-6C | EVA | Carbonated Soft Drink | 90A | 0.93 |
ALPHASEAL 4609-65 RV1 | PVC | Soft drink, PP cap liner for PET or glass bottles | 65A | 1.16 |
ALPHASEAL 701 OX | PVC | Oxygen scavenging for solid twist crowns | 70A | 1.22 |
ALPHASEAL 706 | PVC | Solid DOP-free twist crowns | 65A | 1.17 |
Information contained herein is privileged and confidential to Alphagary/Mexichem/Orbia. We reserve the right to change or update as needed. Product information is to the best of our knowledge and may not be appropriate for every application or use and no representation or warranty, express or implied, is being made.​
Yes! We formulate compounds with reduced carbon footprint. Visit our sustainability page to learn more.
Explore other compounds designed for
Food Contact Applications
Formulated for reliability. Custom-fit to your application.
From soft-touch grips that enhance the comfort of tools and personal care items, to household solutions that keep food fresh - our materials play a vital role in everyday products that improve our well-being and daily life. Choose from hundreds of ready-to-use options, or let us customize solutions tailored to your specific needs.
