DRAWING NUMBER
12665
DATE:
March
2011
Statfree Black Cushion Grade Static Dissipative Foam
2011 DESCO INDUSTRIES INC.
Employee Owned
Made in America
Description:
Desco’s Statfree Cushion Grade Static Dissipative Foam is a non-abrasive,
closed-cell Polyethylene Foam Compounded for Permanent ESD Control
Properties. The ESD protective properties will not degrade; the foam is designed
not to flake, slough, or contaminate products. The foam will electrically couple
to a grounded ESD worksurface when placed on the worksurface. There is no
need for a separate ground cord for the foam when used in this fashion. The
1.9 lb/ft density provides cushioning protecting products from shock physical
damage.
Specifications:
Property
Test Method
Results
Density
ASTM D3575-91
1.9 lb/ft3
Surface Resistance
ANSI/ESD S4.1
10E5 – 10E8 ohms
Corrosivity
TS 1021BA (UK MOD)
Pass
Water Extract
TS 1021BA (UK MOD)
Pass
Total Chlorine
TS 1021BA (UK MOD)
Pass
Recommended Operating
Temperature Range
Internal
+200°F to -95°F
Tear Strength
ASTM D3575-91
14 lbf/in
Tensile Strength
ASTM D2575-91
44 psi
Consistent with ANSI/ESD S541
section A.3 “Dissipative Material
for Intimate Contact, To avoid
rapid discharge to sensitive items,
dissipative materials should be used
as the layer of packaging that contacts
the item.”
ESD Handbook ESD TR20.20 section
5.3.1.7 Electrical Considerations “[RTG
is] The most important functional
consideration for worksurfaces.
This establishes the resistance
of the primary path to ground for
items, placed on the surface. When
worksurface materials are being
selected, consideration should be
given to possible Charged Device
Model (CDM) damage to ESD
sensitive products. If CDM damage
is a concern then setting a lower
resistance limit for the worksurface
should be considered. Typically,
the lower limit for these types of
worksurfaces is 1 x 106 ohms.”
Item
Thickness
Size (in.)
1/8
40 x 75
1/4
40 x 75
3/8
40 x 75
1/2
40 x 75
Dimensions are nominal; thickness is ± 1/16".
DESCO WEST: 3651 WALNUT AVE., CHINO, CA 91710 WEB SITE:
Desco.com PHONE (909) 627-8178 FAX (909) 627-7449
DESCO EAST: ONE COLGATE WAY, CANTON, MA 02021-1407
PHONE (781) 821-8370
FAX (781) 575-0172
Specifications and procedures subject to change without notice.
Unless otherwise noted, tolerance is ±10%