Shanghai Tengyang Highlights Service-Temperature Specification Approach for Hot Melt Adhesive Film Selection

SHANGHAI, China, September 16th, 2026, FinanceWire

Shanghai Tengyang New Materials Technology Co., Ltd. is highlighting a service-temperature-first approach to selecting hot melt adhesive film, outlining how industrial buyers can evaluate adhesive materials based on operating conditions, load requirements, substrate combinations, and processing capabilities rather than unit price alone.

A laminated part that passes production testing but later fails in the field can face conditions that were not included in the original specification. For industrial buyers evaluating hot melt adhesive film, Teng Yang’s materials guidance emphasizes identifying the expected service temperature before comparing quotations.

Hot melt adhesive film is a thermoplastic bonding layer supplied on rolls and activated through heat and pressure. During bonding, the adhesive melts and wets the substrates before solidifying as it cools. Because the material is thermoplastic, the conditions under which a bonded part will operate are an important consideration when selecting a suitable grade.

Starting With the Load Case

Teng Yang’s material information emphasizes that the temperature at which an adhesive is applied and the temperature at which a finished joint operates are different specifications.

The Adhesive and Sealant Council similarly identifies elevated-temperature resistance and creep as considerations when evaluating thermoplastic hot melt adhesives. For industrial purchasing, distinguishing assembly conditions from long-term service conditions can help suppliers and buyers evaluate whether a material is appropriate for a particular application.

Five Polymer Families

Teng Yang supplies hot melt adhesive film across five polymer families: TPU, EVA, PA (polyamide), PES (copolyester) and PO (polyolefin).

The company’s published family-level information provides reference values for these chemistries while noting that final figures depend on the specific grade and application.

• EVA: Published with a melt value of approximately 130°C, adequate strength between approximately 30°C and 50°C, and use below approximately 60°C to 80°C. The company notes lower creep resistance under sustained load.
• PA: Published as being applied at temperatures above 200°C, with a service range of approximately −40°C to 70°C. Some compositions may reach approximately 185°C under no-load conditions.
• PES: Positioned below comparable polyamide materials in certain strength and melt-value characteristics, while offering moisture-resistance characteristics associated with its chemistry.
• PO: Published as offering very good adhesion to polypropylene, a substrate that can present bonding challenges.
• TPU: Used where characteristics such as stretch recovery and hand feel are important, particularly on elastic substrates.

These values are family-level references rather than universal product specifications. Final material selection depends on the specific grade and application conditions.

Chemistry Is Only One Part of the Selection

Selecting the polymer family is one decision; selecting the appropriate delivery form is another.

The same general chemistries can be supplied in different formats, including continuous film for full-surface bonding, adhesive web for porous or uneven substrates, dot coating where full-area coverage is not required, and powder or granules for particular coating and extrusion processes.

Identifying the required delivery form in an initial inquiry can therefore help suppliers determine how the adhesive needs to reach the bonding zone.

Application Temperature and Service Temperature Are Different

Polyamide illustrates why these specifications should not be combined into a single “high-temperature” description.

A published application temperature above 200°C and a service range of approximately −40°C to 70°C describe different operating conditions. Specifying both the activation or application requirement and the expected service temperature can reduce ambiguity when comparing materials.

TPU also demonstrates why activation temperatures should be evaluated at the grade level. Published figures can differ according to formulation and conditions, making it important to confirm the applicable specification rather than relying on a single family-level temperature.

From Family Selection to Grade Selection

Family-level reference values can narrow an evaluation to one or more candidate chemistries, but they do not by themselves establish the correct grade.

Teng Yang’s material information distinguishes family references from grade-specific specifications and notes that properties such as peel strength and activation temperature need to be considered alongside their test conditions.

For buyers, relevant parameters can include:

• Activation temperature or range
• Pressure
• Dwell time
• Melt viscosity
• Areal weight
• Thickness
• Service temperature
• Sustained load
• Substrate combination

Covestro’s technical material on film lamination similarly identifies factors such as heat, pressure, substrate type and process selection as variables affecting the finished result.

A Six-Point Service-Temperature Specification Sheet

Teng Yang recommends that industrial buyers establish key operating requirements before requesting quotations. A concise specification sheet can include six basic points:

1. Peak service temperature and duration
2. Lowest service temperature
3. Sustained service load
4. Available press capability
5. Actual substrate pair
6. Required delivery form

The approach is intended to help buyers and suppliers compare candidate materials against the same requirements.

For example, identifying the available press temperature can immediately eliminate materials that require processing beyond the capability of a production line. Similarly, identifying the actual substrate—whether fabric, foam, film, coated surface or leather—provides more useful information than a broad material category alone.

Temperature Specifications Do Not Replace Production Trials

Temperature requirements can narrow the field of candidate grades, but they do not independently certify a finished bond.

Teng Yang operates capabilities including cast film, blown film, coating and meltblown production and states that samples and production trials form part of its process for preparing volume orders. A trial using the buyer’s actual substrates, equipment and line conditions remains an important step in confirming performance.

A written specification can establish the intended conditions, while a trial record documents what actually occurred during production. Keeping both records can help distinguish material differences from changes in substrate, equipment setup or handling.

Applying the Approach to Industrial Purchasing

Hot melt adhesive materials are available in several forms, and film is one option. Teng Yang’s product range also includes adhesive web, powder and granules, as well as technical TPU film and DTF transfer materials.

The company encourages buyers evaluating adhesive materials to establish service temperature, load duration, press capability, substrate combination and delivery form before comparing quotations or moving toward a volume order.

The approach does not eliminate the need for testing. Instead, it moves an important decision earlier in the purchasing process, giving suppliers clearer requirements and giving sourcing, quality and production teams a common set of parameters for evaluation.

About Shanghai Tengyang New Materials Technology Co., Ltd.

Shanghai Tengyang New Materials Technology Co., Ltd. develops and supplies hot melt adhesive materials and related technical film products. Its product range includes hot melt adhesive film, adhesive web, powder and granules, technical TPU film and DTF transfer materials. The company supports applications involving different substrates and production processes and provides samples and production trials as part of its customer evaluation process.

Website: tengyangfilm.com

Company Details

Company Name: Shanghai Tengyang New Materials Technology Co., Ltd.

Contact Person: Betty Fang

Email: Betty@hotmeltmaterial.com

Phone: +8613122233268

Address: No. 58, Fumin Branch Road, Hengsha Township, Chongming District, Shanghai, Shanghai, China

Website: Teng Yang New Materials

Technical Information Disclaimer

The temperature ranges, material characteristics and other technical information discussed in this announcement are general or family-level references and should not be treated as universal specifications for every adhesive grade or application. Actual performance can vary according to formulation, substrate, processing conditions, load, temperature exposure and other factors. Buyers should obtain current grade-specific technical documentation from the supplier and conduct appropriate testing under their own production and service conditions before making a purchasing decision.

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