Technical Information : Guide for Selecting a Cap Liner
Guide for Selecting a Cap Liner
Usually the smallest component part of the package and usually overlooked, is the selection of the Cap Liner. The linur must not alter or be altered by the product. It must withstand repeated applications and removals against the container surface while maintaining the integrity of the sealing surface. Below is some information that may help in choosing the right liner from out produnct offering:
Meterial
Description
Applications
One Mill poly vinyl film bonded to one Mil HDPE ina #30 white pulp paper backing. Superior to plain pulp paper because it provides excellent moisture barrier. Teflon ® -faced foamed polyethylene liner that offers the excellent chemical resist- ance of Teflon ® with the compressibility and sealing properties of polyethlyene foam.
General purpose: Suitable for wide range of applications.
Poly Vinyl
Chemical resistance: Good for mild acids, alkalis, solvent, alcohols, oils and aqueous products; poor for acitve hydrocarbons and bleaches. Typical applications: analytical lab samples, high purity chemicals, strong acid, solvent. Excellent for environmental samples, pharmaceuticals and diagnostic reagents. Unique problem solving type of liner. This liner is stress crack resistant and offers superior torque retention and excellent sealing characteristics. It is recommended that this liner be tested prior to use for leak seal. General Purpose: Broad applications base. Chemical resistance-good for acid, alkalis, solvents, alcohols, oils, household cosmetics and aqueous products. Poor for hydrocarbon solvents. Liner provides tighy seal.
Teflon ® -Faced Foamed Polyethylene
Manufactured from LDPE. The unique cone design provides a wedge type seal that not only seals across the top but also across the inside diameter.
Poly-Seal
A one piece, three ply coextruded liner consisting of foamed and solid LDPE. The foam core is sandwiched with solid clear PE.
Foamed Polyethylene (F217 ® & Sure-Seal ® )
Aluminum foil bonded to .036” pulp board.
Good barrier properties, good resistance to hydrocarbons, oils, ketones and alcohols. Not good for acids or alkalis.
Pulp / Metal Foil
The white rubber lining material consist of homogeneous sulfur cured styrene- butadiene rubber(SBR). FDA Status complies with 21CFR 177.26, “Rubber articles intended for repeated use.”
Excellent properties of resilience, resistant to moisture vapor. Chemical barrier. Autocalvable.
Styrene Butadiene Rubber (14B)
The white rubber/0.005 PTFE liner consists of virgin PTFE bonded to the white sulfur
Designed for the ulimate in product safety. Autocalvable PTFE provides totally inert seal and surface facing the sample or product.
Styrene-Butadiene Rubber / 0.005 PTFE
cured, styrene-butadiene rubber. Complies with the FDA 21CFR, all appropriate sections.
940
※ The Price(VAT is extra) for Korean End-user, and Changeable.
Powered by FlippingBook