Zhejiang Zhuolv New Materials Co., Ltd. is one of the leading manufacturers and suppliers of pe waterproof sealing tape in China, also supports customized service. If you're going to buy bulk durable pe waterproof sealing tape, welcome to get pricelist and free sample from our factory. Quality products and reasonable price are available.

PE Waterproof Sealing Tape 12/5/7mm × 15m for PE Bags

Double-Sided Acrylic Resealable Bag Sealing Tape

PE Waterproof Sealing Tape is a pressure-sensitive double-sided bag sealing tape designed for PE bags, poly mailers, courier bags and other flexible plastic packaging.

The tape uses a flexible film carrier with acrylic pressure-sensitive adhesive. It helps keep the bag flap securely closed while allowing the package to be opened and resealed when needed.

Our standard reference is 12/5/7 mm × 15 m. Other widths, adhesive configurations, liner options, colors and packaging can be discussed according to your bag production requirements.

For plastic bag manufacturers, packaging converters, distributors and private-label buyers, we support bulk supply, sampling and OEM customization.

About the 12/5/7 mm Specification

The 12/5/7 mm specification describes the tape and adhesive-width configuration used in bag sealing production.

Because adhesive position and direction may vary according to the bag-making machine and bag structure, buyers should confirm:

Total tape / film width

Adhesive width on each side

Adhesive position

Left, right or center glue direction

Bag flap width

Bag material

Automatic or manual application method

For production orders, we recommend approving a physical sample before mass production.

Product Construction and Film Compatibility

The tape combines a flexible film carrier with acrylic pressure-sensitive adhesive in a double-sided resealable configuration. The final film and adhesive setup should be matched to the bag material and the bag-making process.

For OPP, CPP, LDPE, HDPE or laminated packaging, please provide the exact bag material and thickness before ordering so that adhesion can be evaluated on your actual substrate.

Key Features

Waterproof and Moisture Resistant

Designed for plastic packaging applications where the closure may be exposed to normal moisture, humidity and transportation conditions. It helps maintain a secure closure during storage, handling and shipping. "Waterproof" here refers to packaging and bag-sealing use, not construction or submerged waterproofing.

Resealable Closure

The resealable adhesive structure allows the bag to be opened and closed again, making it suitable for packaging where repeated access to the contents is required.

Pressure-Sensitive Adhesive

No heating equipment is required to activate the adhesive. Bonding is created through contact and pressure during bag production or final closure.

Acrylic Adhesive

The acrylic pressure-sensitive adhesive provides a clean, consistent sealing solution for flexible plastic packaging.

Long Roll for Production Lines

Long rolls help reduce roll changes during continuous bag-making and converting operations.

Works with Automatic Bag-Making Lines

The roll format can be integrated into compatible bag-making and converting equipment. Before ordering, provide your machine model, required tape width and adhesive direction so the configuration can be confirmed.

Applications

PE Waterproof Sealing Tape can be used for:

PE poly bags

Poly mailers

Courier bags

Express delivery bags

E-commerce packaging

Garment bags

Clothing packaging bags

Document bags

Accessory packaging

Electronic accessory bags

Retail packaging bags

General plastic packaging

Resealable packaging

Flexible packaging converting

Who Buys This Product?

Plastic Bag Manufacturers

For integrating sealing tape directly into PE bag and poly-mailer production.

Packaging Converters

For continuous production of resealable flexible packaging.

Courier Bag Manufacturers

For manufacturing mailing bags, express bags and e-commerce packaging.

Packaging Distributors

Standard and customized specifications can be supplied for wholesale distribution.

Private-Label Buyers

Logo, specification, carton markings and other OEM requirements can be discussed for bulk orders.

Resealable Tape vs. Permanent Sealing Tape

Choosing the correct adhesive structure is important. Use resealable tape when the end user needs repeated access to the package; use permanent tape when a one-time, stronger closure is required.

If you are not sure which type to use, send us your bag material and end-use application so the appropriate sealing tape structure can be confirmed.

Customized Sizes and Available Options

Different bag-making machines and packaging designs require different tape dimensions. Customization can include:

Tape width

Adhesive width

Adhesive position

Left glue

Right glue

Center glue

Roll length

Film thickness

Release liner

Film color

Printed film

Custom logo

Carton marking

Private-label packaging

Typical bag-sealing tape configurations use different combinations of film width and adhesive width. The final specification should be confirmed according to your bag production equipment and packaging design.

OEM & Private Label Service

We support OEM requirements for packaging manufacturers, wholesalers and distributors.

Logo and Branding

Custom logo and branding can be discussed for bulk orders.

Dimensions

Tape width, adhesive width and roll length can be adjusted depending on production requirements.

Adhesive Configuration

Different adhesive configurations can be supplied according to whether the bag requires a resealable or permanent closure.

Glue Direction

Left, right or center positioning should be confirmed according to the bag-making line.

Packaging

Cartons, labels and shipping marks can be customized according to the buyer's requirements.

For customized logo projects, minimum order requirements depend on the customization method. Please send your artwork and required quantity for confirmation.

Information Needed to Request a Quote

Please provide the following information so the correct specification and quotation can be prepared:

Bag material: PE / LDPE / HDPE / OPP / CPP / laminated film

Bag thickness

Bag size

Tape specification

Required roll length

Quantity required

Resealable or permanent closure

Adhesive position

Left / right / center glue direction

Whether a customized size is required

Whether a customized logo is required

Whether customized carton packaging is required

Destination country or port

Required delivery date

Estimated monthly quantity, if applicable

Any carton label or brand-marking requirements

Whether samples are required for testing

End-use application

Packaging film information

If you currently use another manufacturer's bag sealing tape, you can also send us the existing specification or a sample for matching.

Sample Testing Before Bulk Purchasing

We recommend testing samples before confirming a large production order. Samples should be tested on the buyer's actual:

Bag material

Bag thickness

Bag-making machine

Production speed

Sealing position

Storage conditions

End-use packaging

Important inspection points include:

Adhesion

Release performance

Resealing performance

Glue transfer

Adhesive residue

Tape alignment

Roll unwinding

Edge quality

Slitting consistency

Samples are available for product evaluation. Testing on the actual bag material and production line is recommended before bulk ordering.

Quality Control

For B2B production orders, important quality-control points include:

Width Consistency

The tape and adhesive widths should remain consistent throughout the roll to help prevent misalignment on automatic bag-making equipment.

Adhesive Coating

The adhesive layer should be evenly coated to reduce unstable bonding and glue-transfer problems.

Slitting Quality

Roll edges should be clean and consistent to support stable unwinding at production speed.

Roll Winding

Rolls should be wound evenly to reduce telescoping and tracking problems during converting.

Adhesive Position

Glue position should match the approved specification and production sample.

Batch Traceability

For repeat orders, the production specification should remain consistent between batches. If your company has a specific inspection standard, please provide it before production.

Compliance Documents

Compliance requirements vary by country, application and final packaging use. If your project requires any of the following documents, please inform us before ordering so availability can be confirmed for the exact tape structure and adhesive formulation:

RoHS

REACH

Material declarations

Restricted substance declarations

COA

Third-party testing

Customer-specific compliance documents

For food, pharmaceutical or other regulated packaging applications, please provide the exact regulatory and end-use requirements before product selection.

Packaging

Standard products are packed in export cartons suitable for international transportation. Exact packing quantity depends on:

Roll length

Roll diameter

Tape width

Core specification

Customized packaging requirements

For container loading or landed-cost calculations, carton size, gross weight, net weight and quantity per carton can be confirmed before shipment.

Custom carton marks and private-label packaging are available for qualified bulk orders.

Minimum Order Quantity

MOQ depends on whether the buyer selects:

Standard stock specification

Customized tape size

Customized adhesive structure

Customized film

Customized logo

Customized carton

For standard products, contact us for the current trial-order quantity. For customized branding projects, MOQ will be confirmed according to the required printing and packaging process.

Lead Time

Production lead time depends on:

Order quantity

Tape specification

Adhesive configuration

Customized printing

Packaging requirements

Current production schedule

Standard specifications can normally be arranged faster than fully customized OEM products. Please provide your required delivery date when requesting a quotation.

Storage Recommendations

Keep rolls in their original packaging before use.

Store in a clean, dry indoor environment.

Avoid direct sunlight.

Avoid excessive heat.

Avoid high humidity and condensation.

Keep rolls away from dust and contamination.

Allow cold-stored rolls to return to normal production temperature before use.

For long-term inventory projects, request the applicable shelf-life specification for the selected adhesive system before ordering.

How to Use PE Waterproof Sealing Tape

Confirm the tape direction according to the bag-making machine.

Install the roll securely on the tape feeding unit.

Align the tape with the required bag flap position.

Apply consistent pressure during lamination.

Check the first production pieces for tape position and adhesion.

Test opening and resealing performance.

Check for adhesive transfer or residue.

Confirm production stability before running at full speed.

For new bag structures, a trial production run is recommended.

Why Choose Zhuolv?

Zhejiang Zhuolv New Materials focuses on adhesive tape and plastic bag sealing tape for flexible packaging applications.

Our sealing tape manufacturing experience dates back to 2000, with supply experience for PE bags, OPP bags, plastic packaging, courier bags and other bag-making applications.

We support:

Factory supply

Bulk orders

Standard specifications

Customized specifications

OEM production

Private labeling

Sample evaluation

Bag material matching

Long-term B2B supply

Frequently Asked Questions

1. Is PE Waterproof Sealing Tape 12/5/7mm × 15m designed for PE bags?

Yes. This standard reference product is intended for PE bag sealing applications, including poly bags, poly mailers and other flexible plastic packaging.

2. What does 12/5/7 mm mean on PE Waterproof Sealing Tape?

It describes the tape and adhesive-width configuration used in bag sealing production. Because machine setups differ, the exact adhesive position and direction should be confirmed with the approved specification or sample.

3. What is the standard roll length of this PE Waterproof Sealing Tape?

The standard reference in this product page is 15 m per roll. Other roll lengths can be discussed according to production requirements.

4. Is this PE Waterproof Sealing Tape actually waterproof?

It is designed to provide moisture-resistant sealing for plastic packaging applications. It is not a construction waterproofing tape and is not intended for submerged waterproofing.

5. Is the 12/5/7mm PE bag sealing tape resealable or permanent?

This version is a resealable bag sealing tape. If a permanent closure is required, a different adhesive configuration can be discussed.

6. What adhesive is used on this PE Waterproof Sealing Tape?

The reference product uses acrylic pressure-sensitive adhesive. It bonds through contact and pressure and does not require heat activation.

7. Can the 12/5/7mm tape width or adhesive position be customized?

Yes. Tape width, adhesive width, adhesive position, glue direction, roll length, liner, film color and other options can be discussed according to quantity and production requirements.

8. Can this PE Waterproof Sealing Tape run on automatic bag-making machines?

It can be integrated into compatible bag-making and converting equipment. Please provide your machine model, current tape size, installation photo and adhesive direction so the configuration can be checked.

9. Can this sealing tape be used on LDPE, HDPE, OPP or CPP bags?

Different films have different surface properties. Please provide the actual film material and thickness so the tape can be evaluated on your substrate before bulk production.

10. Can I request samples, OEM branding or private-label packaging for this tape?

Yes. Samples can be arranged for evaluation, and custom logo, carton markings and private-label packaging can be discussed for qualified bulk OEM orders.