CLEAR BARRIER FOOD PACKAGING
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Dried Food
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Odor Barrier
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Beef, Fish, Poultry
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Vacuum Packaging
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Long Term Food Storage
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Frozen Foods
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Snack Foods
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Spices
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Powders
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Liquids
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Food Rations
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Decorative
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| CALVAC6X | ✔︎ | ✔︎ | ✔︎ | ✔︎ | ✔︎ | ✔︎ | ✔︎ | ✔︎ | ||||||||||||||||
| CALVAC6X 5.0 | ✔︎ | ✔︎ | ✔︎ | ✔︎ | ✔︎ | ✔︎ | ✔︎ | ✔︎ | ✔︎ | ✔︎ | ✔︎ | |||||||||||||
| CALPM4 | ✔︎ | ✔︎ | ✔︎ | ✔︎ | ✔︎ | ✔︎ | ||||||||||||||||||
CLEAR BARRIER PACKAGING FOR FOOD PRESERVATION
Many food products require barriers against oxygen, moisture and odors to stay fresh as long as intended. In particular, high-quality packaging materials increase the longevity of perishable food items and help ensure their safety.
At Caltex Plastics, we provide a variety of clear barrier food packaging options to keep products fresh through the storage, shipping and retail processes. Our clear barrier bags are suitable for packaging:
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Though the packaging solution that’s right for you will depend on your product’s preservation requirements and the expectations of your consumer base, many food processors find our barrier bags useful in vacuum packing, long-term storage and odor barrier applications.
Read on to learn more about our clear barrier packaging products and their specifications.




CALVAC 6X
CALVAC 6X is a multi-layer packaging material made from laminated poly nylon film. Used to vacuum seal beef, poultry, fish, cheese and other common perishable goods, CALVAC 6X performs better than coextruded film and offers impressive strength, flexibility and clarity.
These clear barrier vacuum seal bags meet FDA and USDA guidelines for food contact safety. They can also withstand refrigeration and freezing which allows for maximum convenience.
CALVAC 6X 5.0
CALVAC 6X 5.0 is a heavy-duty version of our CALVAC 6X packaging material. Its thick construction prevents tears and punctures, making it ideal for vacuum packing items with corners and edges that stick out.
Because CALVAC 6X 5.0 offers a stronger seal, it’s suitable for use in long-term food storage and food ration packaging applications. It provides superior strength while still retaining flexibility and clarity for ease of use.
Like CALVAC 6X, this material meets FDA and USDA guidelines for food safety, withstands refrigeration and freezing and performs better than coextruded film.
CALPM4
For food products that require simple protection from the elements, CALPM4 provides a solution. These bags have an outer layer of polyester and create an effective barrier against oxygen, moisture and odors.
When compared to a similar polyethylene bag, CALPM4 provides significantly better protection against oxygen, making it particularly useful for packaging oxygen-sensitive contents. In addition, CALPM4’s translucent material makes identifying the bag’s contents fast and easy.
CHOOSE CALTEX PLASTICS
Strong packaging is an essential part of delivering food products that remain fresh and safe to eat for an extended amount of time. If you’re packaging and selling perishable goods, you need to select clear barrier bags that are proven to perform.
At Caltex Plastics, we take safety seriously. To ensure our products meet our customers’ requirements, we test all our materials extensively in a laboratory setting. When you choose a Caltex product, your packaging will always perform as stated, so you can feel comfortable sending your food product to stores.
If you need high-quality clear barrier food packaging, Caltex Plastics can help. Contact us today to learn more about our products and their capabilities.
Frequently asked questions
Which CALVAC material is right for which food application?
CALVAC 6X is a clear, laminated Nylon and polyethylene film for vacuum sealing beef, poultry, fish, cheese, and other perishables. It can be boiled, frozen, or microwaved. CALVAC 6X 5.0 is the heavy-duty version, for items with corners and edges that stick out, long-term food storage, and food rations. CALPM4 has a polyester outer layer and acts as an oxygen, moisture, and odor barrier for foods that need simple protection.
Does Caltex offer vacuum packaging as bags or as film on rolls?
Both, in different materials. CALVAC 6X and CALVAC 6X 5.0 are vacuum packaging bags and pouches, with custom printing and thermal transfer available. For film on rolls, Caltex roll stock is available in clear, high-barrier sheeting and metalized polyester, printed or unprinted, for use on form, fill and seal machines. Roll thicknesses, widths, and lengths depend on the product and package size. Send the size, quantity, and product through the request-a-quote form.
Are CALVAC vacuum bags safe for food contact?
Yes. CALVAC 6X and CALVAC 6X 5.0 pouches meet FDA and USDA requirements for food contact safety. Caltex materials are laboratory tested to ensure they meet stated specifications. Data sheets are available through the data sheets form, and product documentation is provided during the order process.
What barrier test data is available for CALVAC 6X?
CALVAC 6X is a 2.9 mil Nylon, adhesive, and LLDPE laminate. Published properties include a water vapor transmission rate of 0.4560 gr/100 in² per 24 hours (ASTM F-1249-90), an oxygen transmission rate of 3.5 to 4.5 cc/100 in² per 24 hours, puncture strength of 20.5 lb (FTMS 101-C), heat seal strength of 22 lb per inch of width (ASTM D-1876-93), and light transmission above 90 percent (ASTM D1003-92). A product brochure is available as a PDF.
Why use laminated CALVAC film instead of coextruded film?
CALVAC 6X is a multi-layer laminate that performs better than coextruded film, with strength, flexibility, and clarity. It withstands refrigeration and freezing and extends shelf life for a variety of food products.

CUSTOMER SERVICE
- Responsive to customer needs
- Provide custom tailored packaging
- Customer support (technical, brochures, spec sheets, test data, applications)
- Competitive pricing
- Commitment to building long term relationships

DISTRIBUTION
- Over 1 millions pounds of product shipped monthly
- Competitive Shipping Rates
- Stock items shipped same day
- Large inventory of stock sizes
- National warehousing in the U.S. both west and east coasts.
- Stocking locations in Asia and Europe (more locations soon)
- World wide network of qualified distributors

PRODUCTION
- Over 50 materials in stock
- Wide variety of packaging options
- Customer bag configurations
- Specialize in short run and custom production
- Progressive quality control procedures and testing
- Manufacture 24 hours a day 7 days a week