POLARSHIELD® PORTFOLIO
Achieve strength, moisture resistance and thermal stability
with a fiber-based solution for frozen food
A fiber-based packaging solution engineered for frozen foods, PolarShield® delivers reliable uniformity - so you can get the most out of converting and filling equipment. With its smooth surface, PolarShield offers strong printability, for packaging with consistent, high-quality imaging.
Whether you need moisture resistance, thermal stability or inherent strength, PolarShield can meet a wide range of frozen food packaging needs.
Achieve strength and thermal stability with PolarShield® Canister, PolarShield® Frozen Cup, PolarShield® HMR, PolarShield® Mill Wax, PolarShield® Ovenable, PolarShield® Pet and PolarShield® Shrimp Base.
COMPARE THE BENEFITS OF OUR POLARSHIELD® PORTFOLIO
Reliable rim-curling and strong printability for scrounds, tubs and canisters
PolarShield® Canister delivers reliable rim-curling performance for scrounds, tubs and canisters. With strong, consistent printability and a variety of LDPE configurations, you can use PolarShield Canister to match a wide range of barrier performance needs.
- FEATURES & BENEFITS
- APPLICATIONS & WHAT YOU CAN EXPECT FROM US
- ADDITIONAL PRODUCT INFORMATION
- SPECIFICATIONS
FEATURES & BENEFITS
Features:
- Reliable uniformity
- Smooth surface and bright appearance
- Realiable rim curling and form testing
Benefits:
- Allows brands to get the most out of converting and filling equipment
- Helps ensure strong printability and consistent brand imaging
- Ideal for scrounds, tubs and canisters
APPLICATIONS & WHAT YOU CAN EXPECT FROM US
Applications:
- Food Packaging
- Foodservice
- Scrounds,Tubs and Canisters
What You Can Expect From Us:
- Consistency: Can deliver reliable uniformity, allowing brands to get the most out of converting and filling equipment
- Printability: A smooth surface and bright appearance help to ensure strong printability and consistent brand imaging
- Rim Forming: Reliable rim curling and form testing for scrounds, tubs and canisters
ADDITIONAL PRODUCT INFORMATION
Sustainability
- All WestRock North American paperboard mills are certified to the SFI®, PEFC™, FSC™ Chain of Custody Standards. Contact your WestRock sales representative for certified fiber availability for this product.
- Certificate Codes: SFI Certified Sourcing: NSF-SFI-CS-6S751, SFI CoC: NSF-SFICOC-6S751, PEFC: NSF-PEFCCOC-6S751, FSC Company Code: FSC-C104002
Environmental & Product Safety
- Notices under US California Proposition 65 and the EU REACH regulation are not required
- Elemental chlorine free (ECF) bleached fiber
- Meets heavy metal limits of the US Model Toxics in Packaging rules and Article 11 of EU Directive 94/62/EC
Food Contact
- Meets multiple national requirements for food contact packaging, e.g., US and Canada. Contact your sales representative for information on specific markets and end uses.
Quality
- Produced at an ISO 9001 certified facility
This information is subject to change without notice.
SPECIFICATIONS
Delivers strength and moisture resistance for ice cream packaging
A clay-coated paperboard cupstock that features a strong, poly coating, PolarShield® Frozen Cup delivers strong moisture resistance. Designed to meet the unique requirements of ice cream packaging applications, its inherent strength properties enable PolarShield Frozen Cup to stand up to the rigor of multiple cold chain freeze-thaw cycles.
- FEATURES & BENEFITS
- APPLICATIONS & WHAT YOU CAN EXPECT FROM US
- ADDITIONAL PRODUCT INFORMATION
- SPECIFICATIONS
FEATURES & BENEFITS
Features:
- Poly two-sided coated
- No Optical Brightening Agents (OBA)
- Clay-coated base provides a smooth surface
- Suitable for food contact
- Consistent product uniformity and graphics
- Clean cup forming
Benefits:
- Reliable moisture resistance throughout all freeze-thaw cycles due to proprietary coating
- Can help minimize fading risks
- Delivers strong printability and high-quality graphics
- Can help increase productivity and reduce waste due to excellent runnability
- Seams stay clean and tight
- Smooth rims with no cracking or tears
APPLICATIONS & WHAT YOU CAN EXPECT FROM US
Applications:
- Retail Ice Cream
- Cups, Tubs and Scrounds
- Foodservice Ice Cream Cups
What you can expect from us:
- Moisture Resistance: Poly two-sided coating provides reliable moisture resistance throughout all freeze-thaw cycles.
- Fade Resistant: Contains no Optical Brightening Agents (OBA) which can help to minimize fading risks
- Smooth Printability: A clay-coated base provides a smooth surface for strong printability and high-quality graphic
- Compliance: Suitable for food contact
- Reliable Runnability: Consistent product uniformity and graphics which can help increase productivity and reduce waste
- Clean Cup Forming: Seams stay clean and tight, while rims are smooth with no cracking or tears
ADDITIONAL PRODUCT INFORMATION
Sustainability
- All WestRock North American paperboard mills are certified to the SFI®, PEFC™, FSC™ Chain of Custody Standards. Contact your WestRock sales representative for certified fiber availability for this product.
- Certificate Codes: SFI Certified Sourcing: NSF-SFI-CS-6S751, SFI CoC: NSF-SFICOC-6S751, PEFC: NSF-PEFCCOC-6S751, FSC Company Code: FSC-C104002
Environmental & Product Safety
- Notices under US California Proposition 65 and the EU REACH regulation are not required
- Elemental chlorine free (ECF) bleached fiber
- Meets heavy metal limits of the US Model Toxics in Packaging rules and Article 11 of EU Directive 94/62/EC
Food Contact
- Meets multiple national requirements for food contact packaging, e.g., US, Canada, Germany and the EU. Contact your sales representative for information on specific markets and end uses.
- ISEGA Certificate available
- Kosher documentation available
Quality
- Produced at an ISO 9001 certified facility
This information is subject to change without notice.
SPECIFICATIONS
High moisture resistance and durability for wet environments
PolarShield® HMR (high moisture resistance) offers strong moisture resistance in a single-sheet paperboard. Designed to endure the rigor of multiple freeze-thaw cycles throughout the cold chain, it provides a reliable solution for applications such as seafood packaging that operate in an extremely wet environment. A bright white, glossy-coated side combined with a smooth, uncoated back help to ensure consistency on the printing press, in filling lines and in high-speed converting operations.
- FEATURES & BENEFITS
- APPLICATIONS & WHAT YOU CAN EXPECT FROM US
- ADDITIONAL PRODUCT INFORMATION
- SPECIFICATIONS
FEATURES & BENEFITS
Features:
- Consistent quality
- Smooth surface
- Classic white styling achieved without optical brightening agents (OBA)
Benefits:
- Reliable moisture resistance and wet durability
- Maintains structural integrity and appearance for products subjected to freeze-thaw cycles and humidity fluctuations
- Can help optimize runnability on converting and filling equipment due to consistent ink holdout and uniformity
- Fade resistant
APPLICATIONS & WHAT YOU CAN EXPECT FROM US
Applications:
- Frozen Food
- Frozen and Refrigerated Seafood
- Frozen Variety Meats
What you can expect from us:
- Moisture Resistance: Delivers reliable moisture resistance and wet durability, ideal for frozen and refrigerated seafood packaging and other tough applications
- High Quality: Maintains structural integrity and appearance for products subjected to freeze-thaw cycles and humidity fluctuations
- Surface Uniformity: A smooth surface delivers consistent ink holdout and uniformity, which can help optimize runnability on converting and filling equipment
- Fade Resistance: Classic white styling is achieved without using optical brightening agents (OBA), which can result in high whiteness without fading
ADDITIONAL PRODUCT INFORMATION
Sustainability
- All WestRock North American paperboard mills are certified to the SFI®, PEFC™, FSC™ Chain of Custody Standards. Contact your WestRock sales representative for certified fiber availability for this product.
- Certificate Codes: SFI Certified Sourcing: NSF-SFI-CS-6S751, SFI CoC: NSF-SFICOC-6S751, PEFC: NSF-PEFCCOC-6S751, FSC Company Code: FSC-C104002
Environmental & Product Safety
- Notices under US California Proposition 65 and the EU REACH regulation are not required
- Elemental chlorine free (ECF) bleached fiber
- Meets heavy metal limits of the US Model Toxics in Packaging rules and Article 11 of EU Directive 94/62/EC.
This information is subject to change without notice.
Food Contact
- Meets multiple national requirements for food contact packaging, e.g., US, Canada, Germany and the EU. Contact your sales representative for information on specific markets and end uses.
- ISEGA Certificate available
- Kosher documentation available
Quality
- Produced at an ISO 9001 certified facility
SPECIFICATIONS
Delivers effective holdout with a unique wax coating
PolarShield® Mill Wax is a fiber-based solution that keeps liquids in place with a unique wax coating designed for effective holdout. An alternative to plastic or glass, PolarShield Mill Wax can provide strong printability and filling line performance.
- Features & Benefits
- Applications & What You Can Expect From Us
- Additional Product Information
- Specifications
Features & Benefits
Features:
- Consistent uniformity
- Bright, smooth and double-clay coated
- One-sided wax coating
- Recyclable
Benefits:
- Can help increase throughput and productivity on converting and filling equipment
- Delivers strong printability
- Designed for uniquely effective holdout during the filling process
Applications & What You Can Expect From Us
Applications:
- Food Packaging
- Foodservice
- Ice Cream Bricks
What you can expect from us:
- Consistency: Reliable uniformity can help increase throughput and productivity on converting and filling equipment
- Printability: Bright, smooth and double-clay coated for strong printability
- Wax Coating: One-sided wax coating designed to allow for uniquely effective holdout during the filling process
Additional Product Information
Sustainability
- Recyclable
- All WestRock North American paperboard mills are certified to the SFI®, PEFC™, FSC™ Chain of Custody Standards. Contact your WestRock sales representative for certified fiber availability for this product.
- Certificate Codes: SFI Certified Sourcing: NSF-SFI-CS-6S751, SFI CoC: NSF-SFICOC-6S751, PEFC: NSF-PEFCCOC-6S751, FSC Company Code: FSC-C104002
Environmental & Product Safety
- Notices under US California Proposition 65 and the EU REACH regulation are not required
- Elemental chlorine free (ECF) bleached fiber
- Meets heavy metal limits of the US Model Toxics in Packaging rules and Article 11 of EU Directive 94/62/EC
This information is subject to change without notice.
Food Contact
- Meets multiple national requirements for food contact packaging, e.g., US and Canada. Contact your sales representative for information on specific markets and end uses
Quality
- Produced at an ISO 9001 certified facility.
Specifications
Achieve thermal stability with a convenient, single package solution
PolarShield® Ovenable replaces a multi-part package with a single folded carton that can go from freezer to oven to table. Featuring both moisture resistance and thermal stability, PolarShield® Ovenable offers product uniformity and printing consistency with an efficient, single package solution.
- Features & Benefits
- Applications & What You Can Expect From Us
- ADDITIONAL Product Information
- Specifications
Features & Benefits
Features:
- Extruded barrier polymer, available in a clear option, enables performance from -40°F (-40°C) to 428°F (220°C)
- Moisture resistant
- Smooth surface
- Polymer coat-weight uniformity
- Single package solution
- Strong heat-sealing performance across a range of technologies, including hot air, platen and microwave
Benefits:
- Delivers thermal stability
- Maintains integrity throughout the cyclical conditions of the cold distribution chain
- Delivers strong ink holdout and printing consistency
- Can improve efficiencies and throughput on high-speed forming and filling equipment
- Can offer source reduction and help companies work toward sustainability goals by replacing a multi-part package with a single folded carton
- Can improve efficiency and flexibility due to heat sealability
Applications & What You Can Expect From Us
Applications:
- Frozen Foods
- Retail Foods
- Foodservice
What You Can Expect From Us:
- Thermal Stability: An extruded barrier polymer, available in a clear option, enables performance from -40°F (-40°C) to 428°F (220°C)
- Moisture Resistance: Engineered to withstand the demands of frozen food environments, it maintains integrity throughout the cyclical conditions of the cold distribution chain
- Product Uniformity: A smooth surface delivers strong ink holdout and printing consistency, while polymer coat-weight uniformity can improve efficiencies and throughput on high-speed forming and filling equipment
- Single Package Solution: Offers source reduction compared to alternatives that require outer cartons or wraps, resulting in more cost-efficient packaging that can help companies work toward their sustainability goals
- Heat Sealability: Strong heat-sealing performance across a range of technologies, including hot air, platen and microwave, which can improve efficiency and flexibility
ADDITIONAL Product Information
Sustainability
- All WestRock North American paperboard mills are certified to the SFI®, PEFC™, FSC™ Chain of Custody Standards. Contact your WestRock sales representative for certified fiber availability for this product.
- Certificate Codes: SFI Certified Sourcing: NSF-SFI-CS-6S751, SFI CoC: NSF-SFICOC-6S751, PEFC: NSF-PEFCCOC-6S751, FSC Company Code: FSC-C104002
Environmental & Product Safety
- Notices under US California Proposition 65 and the EU REACH regulation are not required
- Elemental chlorine free (ECF) bleached fiber
- Meets heavy metal limits of the US Model Toxics in Packaging rules and Article 11 of EU Directive 94/62/EC
This information is subject to change without notice.
Food Contact
- Meets multiple national requirements for food contact packaging, e.g., US, Canada and the EU. Contact your sales representative for information on specific markets and end uses.
- Kosher documentation available
Quality
- Produced at an ISO 9001 certified facility.
Specifications
Achieve strength and thermal stability when moisture isn’t an issue with a single package solution
PolarShield® PET offers strength and thermal stability for frozen packages without wet conditions. An ideal choice for frozen and bakery applications, it creates packages capable of going from shelf or freezer directly to a conventional or microwave oven. PolarShield® PET offers product uniformity and printing consistency with an efficient, single package solution.
- Features & Benefits
- Applications & What You Can Expect From Us
- Additional Product Information
- Specifications
Features & Benefits
Features:
- Extruded barrier polymer, available in a clear option, enables performance from -40°F (-40°C) to 428°F (220°C)
- Smooth surface
- Polymer coat-weight uniformity
- Single package solution
- Strong heat-sealing performance across a range of technologies, including hot air, platen and microwave
Benefits:
- Delivers thermal stability
- Can improve efficiencies and throughput on high-speed forming and filling equipment
- Can offer source reduction and help companies work toward sustainability goals by replacing a multi-part package with a single folded carton
- Can improve efficiency and flexibility due to heat sealability
Applications & What You Can Expect From Us
Additional Product Information:
- Frozen Foods
- Retail Foods
- Foodservice
What You Can Expect From Us:
- Thermal Stability: An extruded barrier polymer, available in a clear option, enables performance from -40°F (-40°C) to 428°F (220°C)
- Product Uniformity: A smooth surface delivers strong ink holdout and printing consistency, while polymer coat-weight uniformity can improve efficiencies and throughput on high-speed forming and filling equipment
- Single Package Solution: Offers source reduction compared to alternatives that require outer cartons or wraps, resulting in more cost-efficient packaging that can help companies work toward their sustainability goals
- Heat Sealability: Strong heat-sealing performance across a range of technologies, including hot air, platen and microwave, which can improve efficiency and flexibility
Additional Product Information
Sustainability
- All WestRock North American paperboard mills are certified to the SFI®, PEFC™, FSC™ Chain of Custody Standards. Contact your WestRock sales representative for certified fiber availability for this product.
- Certificate Codes: SFI Certified Sourcing: NSF-SFI-CS-6S751, SFI CoC: NSF-SFICOC-6S751, PEFC: NSF-PEFCCOC-6S751, FSC Company Code: FSC-C104002
Environmental & Product Safety
- Notices under US California Proposition 65 and the EU REACH regulation are not required
- Elemental chlorine free (ECF) bleached fiber
- Meets heavy metal limits of the US Model Toxics in Packaging rules and Article 11 of EU Directive 94/62/EC
This information is subject to change without notice.
Food Contact
- Meets multiple national requirements for food contact packaging, e.g., US, Canada and the EU. Contact your sales representative for information on specific markets and end uses.
- Kosher documentation available
Quality
- Produced at an ISO 9001 certified facility.
Specifications
Provide strong moisture resistance and wet durability with a white, two-sided paperboard
PolarShield® Shrimp Base offers strong moisture resistance and wet durability with a white, two-sided paperboard. An alternative to wax-corrugated packaging in lighter-weight applications that require a two-sided white container, PolarShield® Shrimp Base is a reliable solution for a wide range of food packaging, including seafood, beef and pork. By using a single sheet, it can help improve your converting yield without sacrificing quality.
- Features & Benefits
- Applications & What You Can Expect From Us
- Additional Product Information
- Specifications
Features & Benefits
Features:
- Strong moisture resistance and wet durability
- Single sheet
- White-pigmented poly coating on the unbleached side
- Produced with up to 15% recycled fiber
Benefits:
- Offers an high-quality solution for refrigerated seafood packaging and other tough applications
- Can enhance product appearance due to pure, white surfaces on front and back
- Can help companies work toward their sustainability goals
Applications & What You Can Expect From Us
Applications:
- Frozen and Refrigerated Seafood
- Bulk Packed Frozen Meats and Poultry
- Wax-Corrugated Package Alternative
What You Can Expect From Us:
- Moisture Resistance: Delivers strong moisture resistance and wet durability, ideal for frozen and refrigerated seafood packaging and other tough applications
- Single Sheet: PolarShield® Shrimp Base has a 7% to 10% converting yield advantage compared to alternative products that utilize two boards laminated together
- White Front and Back: A white-pigmented poly coating on the unbleached side offers two pure, white surfaces that help enhance product appearance
- Recycled Fiber Content: Produced with up to 15% recycled fiber, helping companies work toward their sustainability goals
Additional Product Information
Sustainability
- Made with recycled fiber
- All WestRock North American paperboard mills are certified to the SFI®, PEFC™, FSC™ Chain of Custody Standards. Contact your WestRock sales representative for certified fiber availability for this product.
- Certificate Codes: SFI Certified Sourcing: NSF-SFI-CS-6S751, SFI CoC: NSF-SFICOC-6S751, PEFC: NSF-PEFCCOC-6S751, FSC Company Code: FSC-C104002
Environmental & Product Safety
- Notices under US California Proposition 65 and the EU REACH regulation are not required
- Meets heavy metal limits of the US Model Toxics in Packaging rules and Article 11 of EU Directive 94/62/EC
This information is subject to change without notice.
Food Contact
- Meets multiple national requirements for food contact packaging, e.g., US, Canada, Germany and the EU. Contact your sales representative for information on specific markets and end uses.
- ISEGA Certificate available
Quality
- Produced at an ISO 9001 certified facility.
Specifications
Paperboard Calculator
Need to know specifics about our paperboard? Use our paperboard calculator to find out weights, calipers and conversions for your needs.
We understand that you rely on us for more than paperboard. In order to provide the best service possible, WestRock has developed roll, sheet and metric conversion calculators to make your job easier. Please note that these calculations are close estimates.
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