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    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
    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 10 F 40
    1.21
    90
    450
    50
    115
    30
    -35
    292 A 30
    1.2
    92
    430
    50
    130
    30
    -35
    292 A 81 WT F 40
    1.21
    92
    500
    52
    125
    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
    250 D 12
    1.22
    45
    470
    47
    130
    35
    255 D 12
    1.23
    56
    380
    58
    160
    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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