TPU - Epamould series 200 polyester base

TPU for technical moulding

Technical injection moulding is one of the most widely used and varied applications in which Epaflex TPU products find their natural habitat thanks to their versatility and range of use. Series 200 includes both plasticised ( phthalate free) TPUs and non plasticised TPUs based on saturated polyesters, with improved hydrolysis resistance and excellent phisical and mechanical properties. Series 200 is produced with a hardness range beetwen 63 Sh D and 70 Sh D.


proprietà tipiche
method
unit
Density
ISO 1183
Kg/dm³
Hardness Sh A
ISO 868
Shore A
Hardness Sh D
ISO 868
Shore D
Elongation at break
EN 12803
%
Tensile strenght
EN 12803
MPa
Tear strenght
ISO 34
KN/m
Abrasion resistance
EN 12770
mm³
Compression set 22h/70 C
ISO 815
%
Compression set 70h/23C
ISO 815
%
Glass transition temp. (Tg)*
DMA
°C
processo
Injection molding
caratteristiche
Semi trasparent / Opaque
Trasparent
Pigmented
FDA 21 CFR177.1680
FDA 21 CFR177.2600
EU 10/2011
260 A 56
1.18
66
700
30
70
45
-33
265 A 56
1.18
69
650
32
72
45
40
15
-32
275 A 10 E
1.19
75
640
40
100
50
-32
278 A 51 30
1,19
77
570
30
95
50
280 A 10
1,19
80
550
45
103
35
285 A 10
1.19
83
540
45
105
35
42
29
-33
290 A 10
1.2
89
500
50
115
35
43
27
-35
292 A 30
1.2
92
430
50
130
30
-35
292 A 83 W F 40
1.21
92
500
52
125
35
295 A 10
1.21
92
45
470
55
125
30
45
25
-35
245 D 10
1,21
45
470
50
130
35
252 D 12
1.22
48
450
50
135
35
260 D 12
1.23
59
360
55
195
45
270 D 12
1.24
69
320
60
220
65

Epaflex TPUs can be coloured with masterbatches.
Specific TPU-based masterbatches are recommended.
Like TPU, masterbatches should also be dried separately from the TPU before being mixed with it.

Processing waste and scraps can be re-used after having been re-granulated. In this case it is worth checking for the presence
of impurities and ensuring that the product has not undergone heat degradation.
The re-granulated product, (like virgin TPU) should always be dried before being re-used.
We suggest using re-granulated TPU blended with fresh granules at a percentage of no more than 25%.
Il rigranuato, al pari del TPU vergine, và sempre essiccato prima del suo riutilizzo.
Si suggerisce di usare il TPU rigranulato in taglio con i granuli vergini in una percentuale non superiore al 25%.

Machines with a clamping pressure of no less than 150 tons and injectors with three-stage screws of a diameter between 40 and
60 mm, and an L/D ratio between 20:1 and 30:1 are recommended for injection moulding.
The use of screws with a diameter exceeding 65 mm and/or with a high compression ratio is not recommended.
In order to avoid heat degradation of the product (local overheating of the material), it is essential to eliminate all the
possible points where stagnation may occur and check that the nozzle is heated in a uniform manner for its whole length.

• Excellent physical and mechanical properties
• Good resistance to oils and fats
• Improved hydrolysis resistance
• Food approved grades
• Good resistance to yellowing
• Quick cycle times
• Excellent dimensional stability
• Ease of extraction
• Excellent definition of mould design
• Easy moulding in many colours
• Excellent flexibility even at very low temperatures
• Excellent tensile and tear strength
• High impact resistance
• Excellent scratch resistance
• Good acoustic insulating properties
• Excellent vibration absorbing properties
• Compatibility with other polymers
• Recyclability

• Mechanical items
• Industrial components
• The mining industry
• Consumables
• Wheels, rollers
• Transmissions
• Transport
• Agriculture and gardening
• Automotive components
• 2K moulding
• Compound

TPU is a hygroscopic polymer and the moisture absorbed affects its processability and the physical-mechanical properties of the
moulded articles. The granules must be dried before use by using fan ovens, vacuum driers or dehumidifying air driers.
The percentage of moisture in granules must be less than 0.05%.
Like TPU, any masterbatches should also be dried separately before being mixed. For the drying parameters (time and
temperature) please see our technical datasheets. The exposure of TPU to the air for even just a few hours means
moisture absorption and forces pre-drying once again.

Epaflex TPUs must be stored in a dry place at a room temperature preferably around 20° C and in any case not at a
too high or too low temperature preferably in a ventilated, cool room.

Epaflex TPUs come in various packaging such as: 25 kg aluminized or vacuum bags and 600 kg. or 1000 kg. octabins.

Loactaion

address

Via Circonvallazione Est, 8, 27023 Cassolnovo PV, Italy

Phone

contacts

T. (+39) 0381929521

F. (+39) 0381929523

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Epaflex Polyurethanes Spa - Società Unipersonale - Cap. Soc. € 1.000.000 i.v. - Sede legale: L.go Isabella d'Aragona 4, 20122 Milano.
Registro Imprese Milano 02144860968 - Rea Pavia 260624 - Rea Milano 1512571 - P.I. 11965210153 - C.F. 02144860968

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