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golf-cartENTEK PE Rubber is a rubber containing polyethylene separator designed to minimize water consumption in Antimony containing grid batteries.


Applications include golf cart, floor scrubber, and motive power systems.

Typical Characteristics

Backweb Thickness (mm)0.30 – 0.51
Overall Thickness (mm)1.2 – 3.4
Lane Width (mm)169
Shoulder Width (mm)18.4
Backweb Puncture Strength (N)≥ 11.0
Shoulder Puncture Strength (N)≥ 12.0
Electrical Resistance (mOhms-cm2)160
Backweb Oil (%)18
Total Oil (%)19.5
Skew (mm)< 8
Transverse Elongation (%)550

This data sheet only shows typical properties. These typical properties may change without prior notification. We urge purchasers to conduct tests to determine final suitability for their specific end uses. No statement with respect to use is intended as a positive recommendation for such use, no guarantee of performance expressed or implied is made.

Antimony Suppression Effect

The Antimony Control Test demonstrates the effect of a separator leachate on the charge efficiency of the Pb electrode in the presence of 7.5 ppm antimony. A pure Pb electrode is cycled first in clean acid, then with the addition of separator leachate, and finally with the addition of Sb at 7.5 ppm. Higher charge efficiency indicates better Sb control.


ENTEK’s world-class battery separators add power and reliability to your heavy duty batteries. Our best-in-class technology and unmatched customization give you maximum control over performance.ENTEK laminates 0.2 mm and 0.4 mm fibre glass retainer mat to the separator ribs using an acid resistant adhesive. Glass mat lamination evenly distributes pressure against the positive active material, enhancing battery performance and grid life.


Rib Profile Design

ENTEK makes industrial separators in three distinct rib profile types:

ENTEK Industrial rib profile designs

Straight rib

Design best suited to prevent gas entrapment in motive and stationary applications.

Sinusoidal (S-rib)

The S-rib design prevents vertical movement of the separators with respect to the lead plates in high-vibration applications. This separator is commonly used in motive applications.


Diagonal profiles are designed to deliver good prevention of gas entrapment of the straight rib profile while preventing vertical movement of the separator with respect to the lead plates like the s-rib design. Used in both motive and stationary applications.

Mini-ribs on Back

ENTEK’s in-house profile design capability allows for customized rib profiles including 0.2-0.5mm mini-ribs on the negative side.

ENTEK industrial separator diagram