Bottom Seal Bags
Custom Bottom Seal Bags Built for Strength, Leak Protection, and Heavy-Duty Performance
Our bottom seal bags are similar to our standard flat bags in function, except they are manufactured differently. While standard flat bags contain “side seals” or “side welds,” a bottom seal bag is made from a section of tubing that is sealed at the bottom and then cut. This difference is what accounts for the strength of our leakproof bottom seal bags.
When packaging heavy or rigid products, Fruth’s side seal and bottom seal bags will perform equally well. Bottom seal bags excel when packaging items that take on the shape of the bag.
In the food processing industry, this might include grain, flour, and various liquids.
On the industrial side, this would include fertilizer, as well as aggregates such as gravel, sand, recycled concrete, slag, topsoil, ballast, and geosynthetic aggregates. These materials are most secure in a bottom seal bag, where particulate contents are likely to exert pressure on the sides of the bag.
Bottom seal bags can be customized to nearly any size and produced with a variety of high-quality material and printing options. Bags can be made from Low Density Polyethylene (LDPE), FDA-approved materials, and recycled poly materials. Proudly made in the USA.
Heavy-Duty Bottom Seal Bags for Industrial & Food Packaging
Fruth bottom seal bags are the preferred choice for B2B buyers who need stronger containment than a standard side seal bag provides. The tubing-based construction eliminates side seams — reducing leak risk and distributing load stress more evenly across the bag, making them ideal for heavy, dense, or pressure-sensitive products.
Common applications include:
- Grain, flour, and dry food ingredients — food-grade materials, FDA compliant
- Liquids and semi-liquids — leak-resistant construction for wet or moist products
- Fertilizer and agricultural inputs — heavy-duty gauge for bulk industrial fills
- Aggregates and construction materials — gravel, sand, topsoil, and recycled materials
- Industrial chemicals and powders — strong seam construction resists pressure
Custom Bottom Seal Bag Specifications
Fruth bottom seal bags have the following features:
- Material — LDPE, FDA-approved, or recycled poly materials
- Size — custom width and length to match your product and fill equipment
- Thickness — heavy-duty gauge options for demanding applications
Frequently Asked Questions (FAQs)
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What makes bottom seal bags stronger than standard bags?
Fruth autoclave bags are manufactured from virgin polypropylene, which provides the durability and thermal stability required for high-temperature, high-pressure steam sterilization cycles.
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What materials are Fruth bottom seal bags available in?
Fruth bottom seal bags are available in LDPE, FDA-approved materials for food contact, and recycled poly materials. Material selection depends on your product type, weight, and regulatory requirements.
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Are bottom seal bags suitable for food packaging?
Yes. Fruth bottom seal bags are available in FDA-approved materials and are used in food processing applications including grain, flour, and liquid packaging.