Elastollan 695AN TPU
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Elastollan® TPU
Technical Data Sheet
Elastollan® 695AN
Polyester-based Grade
Elastollan® 695AN is specifically formulated for extruded profile, sheet and film applications. It exhibits excellent abrasion resistance,
toughness, high transparency, low gel, and low yellowness index. It has excellent damping characteristics and outstanding resistance to tear
propagation. Elastollan® 695AN conforms to the FDA food contact regulations as described in book 21, section 177.2600 and 177.1680 for
both wet and dry food contact applications respectively. Elastollan® 695AN is supplied uncolored in pellet form.
Typical Properties of Elastollan®
ASTM Test Method
Units
Typical Values
All the physical properties reported here are measured on injection molded samples. Properties of sheet
or film samples of this product are also available upon request.
3
Specific Gravity
ASTM D 792
g/cm
1.23
Shore Hardness
ASTM D 2240
Shore A or D
94A
Taber Abrasion
ASTM D 1044
mg loss
25
DIN 53516
mm loss
3
30
E-Modulus
ASTM D 412
psi
5800
Flexural Modulus
ASTM D 790
psi
6400
Tensile Strength
ASTM D 412
psi
5900
Tensile Stress at 100% Elongation
ASTM D 412
psi
2100
Tensile Stress at 300% Elongation
ASTM D 412
psi
4600
Ultimate Elongation
ASTM D 412
%
450
ASTM D 624, Die C
lb/in
850
ASTM D 395 “B”
% of original
deflection
DIN Abrasion
Tear Strength
Compression Set
22h at 70ºC
22h at 23 ºC
40
25
BASF Analytical Method
o
C
-18
Vicat Softening Temperature
ASTM D 1525
o
C
117
DMA Softening Temperature
BASF Analytical Method
o
C
87
Glass Transition temperature*
*Measured with Dynamic Mechanical Analysis (DMA). DMA profile is available upon request.
Above values are shown as typical values and should not be used as specifications.
Elastollan® TPU
Technical Data Sheet
Elastollan® 695AN
Polyester-based Grade
MELT FLOW INDEX (MFI): The following table shows the MFI
information of Elastollan® 695AN. “ASTM D 1238, B” MFI test method is
used for generation of data.
Elastollan® Name
MFI Conditions
o
695A-15N
190 C, 21.6 kg
MFI, g/10min
20-60
DRYING: Elastollan® materials are hydroscopic, i.e. dry Elastollan® will
rapidly absorb moisture when exposed to atmosphere. Polyether-based
Elastollan® grades absorb moisture more rapidly than polyester-based
Elastollan® grades. As with all TPU products, Elastollan® 695AN must be
dried before processing. The drying step is required to maintain a low
moisture content until the product enters the processing equipment. The
water content must be less than 0.03% before and during processing.
PROCESSING RECOMENDATIONS: Single screw extruder with a
compression ratio of 1:2 to 1:3, preferably 1: 2.5, are recommended for
processing Elastollan®. BASF experience shows that three section
screws with an L/D ratio of 25 to 30 are most suitable. Three section
screws should have continued constant pitch of 1D. The radial clearance
between screw and barrel should be 0.1 to 0.2 mm. For processing
Elastollan®, multizone screws, e.g. barrier screws, have also proven
suitable. Short screws with high compression ratio are unsuitable for
Elastollan®. Use of breaker plates and screen packs is recommended.
Depending on the screw diameter and type of die, breaker plates should
have holes of 1.5 to 5 mm in diameter. Since thermoplastic polyurethanes
are shear sensitive, excessively high screw speeds may lead to reduction
in product properties.
Elastollan®
Hardness
Drying
Time
Drying Temperature
Circulating air
Dehumidified Air
78A to 90A
2 to 3 h
100 to 110 ºC
80 to 90 ºC
> 90A
2 to 3 h
110 to 120 ºC
90 to 120 ºC
STORAGE: Elastollan® 695AN can be stored for up to one year in its
original container. Containers should be stored in a cool and dry area.
Containers should be tightly closed after use. Granulates should be
exposed to the surrounding air only for as long as absolutely essential; it
is therefore important to cover the feed hopper of the processing
machine. Drying is recommended if the container has been opened
several times. In order to prevent condensation, materials stored in cool
conditions should be brought to room temperature before opening the
container.
Elastollan® TPU
Technical Data Sheet
TYPICAL PROCESSING CONDITIONS: Elastollan® 695AN can be
used for injection molding or extrusion conditions. Typical processing
conditions are listed in the table below. We recommend you to call our
technical service helpdesk for more information or troubleshooting.
INJECTION MOLDING
Recommended barrel temperatures in ºC
Elastollan®
Hardness
Barrel Temperature
Nozzle
60A- 80A
170-210
200-210
85A- 95A
190-220
210-225
98A-74D
210-230
220-240
EXTRUSION
CHALLENGE US: Please contact us for more information on Elastollan®
products.
Recommended barrel temperatures in ºC
®
Elastollan
Hardness
Cylinder
Adapter
Die Head
Nozzle
60A to 70A
140-175
160-175
165-170
160-165
75A to 85A
160-200
175-200
175-205
170-205
90A to 98A
170-210
200-220
195-215
190-210
VISCOSITY CURVE:
You can reach our technical team at 1-800-892-3111 or
tpu_helpdesk@basf.com. You can find more information at
www.basf.com/elastollan. Our mailing address is BASF Corporation,
1609 Biddle Avenue, Wyandotte, Michigan 48192
For Further information, the following detailed brochures are available
upon request:
Elastollan® Material Properties
Elastollan® Product Range
Elastollan® Processing Recommendations
Elastollan® Electrical Properties
Elastollan® Chemical Resistance
DISPOSAL: Elastollan® materials are fully reacted and present no
hazard to the environment. Waste can therefore be disposed at public
waste disposal sites. The official regulations on waste disposal should be
observed. For further information, please see BASF material safety data
sheets.
CAUTION: Contact with product dusts from regrinding operations may
cause temporary irritation of the eyes and the respiratory tract. Use with
local exhaust. Under hot melt processing conditions (170-230°C), wear
personal protective equipment to prevent thermal burns.
SHRINKAGE: This graph can be used for estimated shrinkage values of
Elastollan® products in relation to the wall thickness. Please remember
that depending on the molding conditions and part design these values
can change. We recommend you to call technical service group for
further information.
FIRST AID: Eyes-Flush eyes with flowing water at least 15 minutes. If
irritation develops, consult a physician. Skin-Skin contact with hot melt
may cause thermal burns. Call a physician immediately. Inhalation-If
vapors generated from the hot melt process are inhaled, move to fresh
air. Aid in breathing. If breathing difficulties develop, see a physician
immediately.
In case of fire: Use water fog, foam, CO2, or dry chemical extinguishing
media. Firefighters should be equipped with self-contained breathing
apparatus and turnout gear.
Polyurethane Thermoplastic Elastomers (TPU)









































