Hot mainstream products – Jiangyin Jinyu Packaging Materials Co., Ltd.

Economy EVA gasket

jj6dhl — Wed, 01 Jan 2025 11:04:42 +0000

EVA MATERIAL GRADE

Economy EVA gasket

Asphalt, waterproof coatings and standard lids; recommended stack below 75 kg.

TECHNICAL DATA

Typical catalog properties

Property	Catalog value
Density	85 +/- 5 kg/m3
Hardness	40-45 Shore C
Tensile strength	0.6 MPa
Elongation	>= 110%
Typical selection	Asphalt, waterproof coatings and standard lids; recommended stack below 75 kg.

Values are typical, not release specifications. Final approval requires the actual lid, groove and filled medium.

EVA MATERIAL GRADE

Economy EVA for standard pail and drum lid applications

Economy EVA is the starting grade for cost-sensitive metal pail and drum lid projects using standard closing conditions. It is commonly evaluated for asphalt, waterproof coatings and general industrial packaging where the filled medium is not highly aggressive.

The grade should not be selected from price alone. Groove depth, lid curl, compression and stacked transport load determine whether the section maintains contact around the full sealing path. A sample lid test is required when the package will see long storage, vibration or temperature cycling.

Typical density	85 +/- 5 kg/m3
Typical hardness	40-45 Shore C
Supply form	Manual joined rings or continuous roll stock
Initial application range	Standard lids, asphalt and waterproof-coating packaging
Catalog stacking reference	Recommended below 75 kg, subject to package validation

Approval before production

The values above are selection references, not a release specification. Final dimensions and performance must be confirmed with the actual lid, closing process and filled medium.

High-elastic food-grade EVA gasket

jj6dhl — Wed, 01 Jan 2025 11:03:08 +0000

EVA MATERIAL GRADE

High-elastic food-grade EVA gasket

High rebound, hydraulic testing and demanding food-contact projects after validation.

Download TDS Request a sample

TECHNICAL DATA

Typical catalog properties

Property	Catalog value
Density	180 +/- 5 kg/m3
Hardness	45-50 Shore C
Tensile strength	1.9 MPa
Elongation	>= 220%
Typical selection	High rebound, hydraulic testing and demanding food-contact projects after validation.

Values are typical, not release specifications. Final approval requires the actual lid, groove and filled medium.

EVA MATERIAL GRADE

High-elastic food-grade EVA for demanding sealing cycles

This grade combines a food-related material option with higher foam density and recovery for projects where the gasket must rebound after stronger or repeated compression. It is evaluated for demanding metal lid and clamp-cover applications after the compliance scope is established.

Higher resilience is useful only when the section fits the groove and the closing system applies the intended compression. Hydraulic, leakage or repeated-compression testing should be performed with representative lids and the actual filled-product conditions.

Typical density	180 +/- 5 kg/m3
Typical hardness	45-50 Shore C
Supply form	Manual joined rings or continuous roll stock
Performance focus	Higher rebound and compression recovery
Approval focus	Food-contact scope plus package sealing validation

Approval before production

The values above are selection references, not a release specification. Final dimensions and performance must be confirmed with the actual lid, closing process and filled medium.

Food-grade EVA gasket

jj6dhl — Wed, 01 Jan 2025 11:02:42 +0000

EVA MATERIAL GRADE

Food-grade EVA gasket

Food and general chemical packaging after media and regulatory validation.

Download TDS Request a sample

TECHNICAL DATA

Typical catalog properties

Property	Catalog value
Density	85 +/- 5 kg/m3
Hardness	40-45 Shore C
Tensile strength	1.15 MPa
Elongation	>= 140%
Typical selection	Food and general chemical packaging after media and regulatory validation.

Values are typical, not release specifications. Final approval requires the actual lid, groove and filled medium.

EVA MATERIAL GRADE

Food-grade EVA requires application-specific approval

Food-grade EVA is intended for projects that require a food-contact material option as well as the handling advantages of a pre-formed foam gasket. The grade may be supplied as a joined ring or as roll stock for automatic lid lining.

The name of the grade is not a blanket approval for every food or market. The applicable regulation, contact type, temperature, storage period and filled product must be identified before documents and samples are selected. Production approval should include the finished lid, not only the raw foam strip.

Typical density	85 +/- 5 kg/m3
Typical hardness	40-45 Shore C
Supply form	Manual joined rings or continuous roll stock
Document focus	Applicable declaration scope and batch documents
Validation focus	Migration conditions, medium compatibility and lid sealing

Approval before production

The values above are selection references, not a release specification. Final dimensions and performance must be confirmed with the actual lid, closing process and filled medium.

Solvent-resistant EVA gasket

jj6dhl — Wed, 01 Jan 2025 11:02:21 +0000

EVA MATERIAL GRADE

Solvent-resistant EVA gasket

Aggressive solvent and industrial coating applications after compatibility testing.

Download TDS Request a sample

TECHNICAL DATA

Typical catalog properties

Property	Catalog value
Density	>= 150 kg/m3
Hardness	50-60 Shore C
Tensile strength	1.7 MPa
Elongation	>= 180%
Typical selection	Aggressive solvent and industrial coating applications after compatibility testing.

Values are typical, not release specifications. Final approval requires the actual lid, groove and filled medium.

EVA MATERIAL GRADE

Solvent-resistant EVA for aggressive filled products

Solvent-resistant EVA is the first grade to evaluate for industrial coatings and other filled products that can swell or soften standard foam. Its denser structure and firmer hardness provide a different starting point, but resistance still depends on the exact solvent blend and exposure period.

Approval should include a controlled immersion or contact test followed by dimensional, compression and leakage checks. A material that looks acceptable after short exposure may lose sealing force during longer storage, so the test period should reflect the real distribution cycle.

Typical density	>= 150 kg/m3
Typical hardness	50-60 Shore C
Supply form	Manual joined rings or continuous roll stock
Initial application range	Industrial coatings and aggressive solvent applications
Validation focus	Swelling, softening and sealing-force retention

Approval before production

The values above are selection references, not a release specification. Final dimensions and performance must be confirmed with the actual lid, closing process and filled medium.

NR, EPDM and silicone gasket series

jj6dhl — Wed, 01 Jan 2025 10:59:05 +0000

02 RUBBER GASKETS

Natural rubber, EPDM and silicone

Each material is presented separately with its own verified catalog image, temperature window and application limits.

Match material to medium

MATERIALS

Select by environment and filled medium

Natural rubber (NR) sealing gasket

High resilience for selected oil-free media and UN/clamp cover projects.

-50 to 80 C

View product details

EPDM sealing gasket

Weather, UV and water-based sealing for outdoor and general industrial packaging.

-40 to 150 C

View product details

High-temperature silicone sealing gasket

Wide temperature range for high-heat, food-related and special chemical projects.

-60 to 200 C+

View product details

MATERIAL COMPARISON

Choose NR, EPDM or silicone by service conditions

Natural rubber, EPDM and silicone are separate gasket families, not interchangeable colors of the same material. The correct choice depends on the filled medium, operating temperature, outdoor exposure, compression cycle and required cross-section. Jinyu supplies custom inner diameter, width, height and D, O or rectangular profiles for metal lid and vessel-cover grooves.

Reference temperature ranges describe the material family and are not a universal service guarantee. Actual performance changes with the compound, contact time, pressure, lid finish and cleaning process. For chemical or food-related service, the safest approval path is a drawing review followed by material samples and a controlled compatibility or leak test.

Material	Reference temperature	Where it fits	Important limitation
Natural rubber (NR)	-50 to 80 °C	High rebound for selected oil-free media and UN or clamp-cover projects.	Avoid oils and fuels; confirm compound and medium compatibility.
EPDM	-40 to 150 °C	Weather, UV, water-based products and general outdoor industrial packaging.	Strong solvents and hydrocarbons require an immersion test.
Silicone	-60 to 200 °C+	High-temperature, food-related and special chemical projects with custom profiles.	Temperature capability depends on compound, exposure time and compression.

Material selection sequence

Begin with the media family and temperature window, then confirm weather exposure and closing force. After the material family is selected, the section is sized so the gasket fills the groove without excessive compression. A sample ring should be tested in the production lid because section tolerances and joint quality affect the final seal.

RUBBER GASKET FAQ

Questions to resolve before ordering

Is EPDM suitable for every chemical product?

High-density EVA gasket

jj6dhl — Wed, 01 Jan 2025 00:00:45 +0000

EVA MATERIAL GRADE

High-density EVA gasket

Engineering coatings and lids requiring a firmer gasket; recommended stack below 125 kg.

Download TDS Request a sample

TECHNICAL DATA

Typical catalog properties

Property	Catalog value
Density	>= 125 kg/m3
Hardness	50-60 Shore C
Tensile strength	1.5 MPa
Elongation	>= 160%
Typical selection	Engineering coatings and lids requiring a firmer gasket; recommended stack below 125 kg.

Values are typical, not release specifications. Final approval requires the actual lid, groove and filled medium.

EVA MATERIAL GRADE

High-density EVA for firmer gasket sections

High-density EVA is considered when a standard foam section compresses too easily or when the lid design needs a firmer gasket to support closing and transport loads. It is used for engineering coatings and industrial lids after the groove and closing force have been reviewed.

A harder gasket is not automatically a better seal. Excessive section volume can increase closing force or prevent the lid from seating correctly. The design target is controlled groove fill with enough recovery to maintain contact after storage and handling.

Typical density	>= 125 kg/m3
Typical hardness	50-60 Shore C
Supply form	Manual joined rings or continuous roll stock
Initial application range	Engineering coatings and lids requiring a firmer gasket
Catalog stacking reference	Recommended below 125 kg, subject to package validation

Approval before production

The values above are selection references, not a release specification. Final dimensions and performance must be confirmed with the actual lid, closing process and filled medium.