Rogers Corporation

Product Information Sheet

DW232DV-5

Porous Sintered PTFE for Venting in Battery Applications

DeWAL Logo

DeWAL® DW232DV product is a fully sintered, porous PTFE film that is thermally and chemically stable. Using the excellent environmental and chemical protection offered by PTFE, DW232DV incorporates pores to allow for controlled venting of air and vapor with excellent transfer and equalization of temperature and pressure.

Applications:

Dual Stage Venting Systems
EV/HEV batteries
Home energy storage

(800) 935-2940 • solutions@rogerscorp.com

Industry(s):

Automotive
EV/HEV Batteries
Venting

Features and Benefits

Due to the lack of expansion and stretching versus ePTFE, DW232DV is the perfect choice for dual stage venting systems in EV/HEV applications as the vent allows for rapid pressure relief in the event of catastrophic failure.

Provides traditional venting needs and enables pressure equalization of enclosed spaces during normal operation
Fractures for rapid pressure relief in the case of high pressure emergencies like a thermal runaway event
Allows for airflow with x-y-z directions
Excellent thermal and chemical environmental resistance
Compliant with RoHS, WEEE, REACH
Naturally hydrophobic material resists water entry pressure and releases moisture vapor

Basic Physical Properties	Typical Value	Units	Test Method
Color	White	N/A	N/A

Construction	Typical Value	Units	Test Method
Substrate	Porous PTFE	N/A	N/A
Overall Thickness	0.13 / 0.005	mm / in	ASTM-D374
Max Width	330.2 / 13	mm / in	N/A

Extended Physical Properties	Typical Value	Units	Test Method
Water Entry Pressure	27 / 3.7	kPa / psi	ASTM D751
Water & Dust Ingress Protection	IP67	N/A	IEC 60529
Air Flow	120 / 120	L/Hr/cm^2 / L/Hr/cm^2	@ 70 MBar, ASTM D737

Heat and Flame	Typical Value	Units	Test Method
Max Operating Temp.	260 / 500	°C / °F	N/A

Processing & Packaging	Typical Value	Units	Test Method
Roll Length	90 / 98	m / yd	N/A
Core Type	Plastic	N/A	N/A
Core Diameter	76.2 / 3	mm / in	N/A

Custom Properties	Value
Minimum Air Flow @ 70 mBar (ASTM D737)	70 L/hr/cm^2
Minimum Water Entry Pressure (ASTM D751)	175 mBar

Typical values shown are from testing at date of manufacture and should not be used for specification limits.
Additional technical information and product specifications are available upon request.
All metric conversions are approximate.
330 mm width is standard. Less than 330 mm available by request.

Note: Shelf life is defined as the duration of time for which the product will meet the physical characteristics outlined on this page. It does not guarantee the product's usefulness in all applications.

The information contained in this Data Sheet is intended to assist you in designing with Rogers’ Elastomeric Material Solutions. It is not intended to and does not create any warranties, express or implied, including any warranty of merchantability or fitness for a particular purpose or that the results shown in this Data Sheet will be achieved by a user for a particular purpose. The user should determine the suitability of Rogers DeWAL products for each application. The Rogers logo, DeWAL logo and DeWAL are trademarks of Rogers Corporation or one of its subsidiaries.