HIGH PERFORMANCE ELASTOMERS HPE

long-lasting moulds for concrete casting.

Soft casting rubber for moulds
Concrete moulding PU
Polyurethane mould casting
Mould casting with polyurethane rubber
Concrete mould polyurethane
  • Polyurethane with resistance to water, engine oil and automotive fluids
  • Wearproof polyurethane
  • Soft polyurethane material
A complete System for concrete Casting WEARPROOF POLYURETHANE MOULDS
  • Wide range of hardnesses from 40 Shore A to 55 Shore D
  • Superior tear and chemical resistance
  • Adapted to the casting of big moulds
to the comparison table 

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Superior tear & chemical resistance
  • High level of mechanical properties with increased abrasion and tear resistance, even on notched parts
  • Formulated by prioritising chemical resistance and wearproofness, in order to maximise the number of castings in one mould
  • SYNTHENE has developed partnerships with trustworthy release agent manufacturers, in order to recommend fully compatible products and preserve the mould over time

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Adapting to a high level of details
  • With its wide range of hardnesses, the HPE system offers the possibility to adapt to highly detailed parts
  • Low hardnesses will be favoured for complex shapes, whereas higher hardnesses like 85 Shore A will be the best option for more simple shapes and longer-lasting moulds

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Optimized for concrete mould casting
  • This PU elastomer adjusts to any part size, allowing single castings even over 100kg without risk of high exothermic reaction
  • Formulated to have a good temperature resistance, from cold (-40°C) to elevated (+90°C) temperatures
  • Can be hand-casted or used in a two-component mixing machine

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A curing at room temperature
  • Polimerisation at ambient temperature in order to adapt to any type of mould size
  • This parameter has been studied to limit environmental impact
  • Making more stable mould dimensions with low shrinkage
WHY PU MOULDS ?

With its higher hardness versus silicone for concrete mould making, polyurethane present outstanding wearproofness.
Depending on the project and with a suitable release agent, one can make between 200 and 400 castings in one single mould.

In Accordance With

REACH

EC Regulation 1907/ 2006, SVHC list in force

RoHS

Directive EU 2011/ 65, 2015/ 863 & 2017/ 2102

Documents

TDS HPE

Technical data sheet of the HPE system. All mechanical properties of each hardness of the versatile rubber like HPE system.

+ download (pdf | 0,4 MB)
available Test reports
  • chemical resistance
Please contact us in order to get a copy of the test reports. We will happily provide them to you.

Do you have a question?

Just ask us!

+33 3 44 31 72 00 comm@synthene.com

Technical Data

PRODUCT NAMEHPE elastomer systemPRODUCT NAME
Hardness40A50A60A70A85A35D55DHardness(Shore)
Simulation of ²rubberSimulation of ²
Colour of the cured materialtransparent amber³Colour of the cured material
Colourability ⁴
Colourability ⁴
PROPERTIESPROPERTIES
Density1.061.071.081.07Density(g/ cm3)
Flexural modulusFlexural modulus(MPa)ISO 178
Maximum flexural strengthMaximum flexural strength(MPa)ISO 178
Elongation at break270400500800900460325Elongation at break(%)ISO 37
Tensile strength2,73,667,2131416Tensile strength(MPa)ISO 37
Tear resistance11182740545870Tear resistance(kN · m-1)ISO 34
Working temperature − 40 ... + 90 Working temperature(°C)
Mixing ratio (P : P/Iso : Iso)100 : 10075 : 8 : 10050 : 16 : 10025 : 24 : 10032 : 10050 : 50 : 5075 : 100Mixing ratio (P : P/Iso : Iso)(in weight)
Mix viscosity at 25°C2000240027003000320018001300Mix viscosity at 25°C(mPa · s)
Pot life by 25°C60555045402518Pot life by 25°C(min)
Demoulding time by 70°C180120Demoulding time by 70°C(min)
Linear shrinkage thickness by 23°C7Linear shrinkage thickness by 23°C(mm/ m)
App. maximum wallthickness~ 100App. maximum wallthickness(mm)
Mould life in silicone⁶40 +Mould life in silicone⁶(number of parts)
STORAGESTORAGE
Standard & alternative packaging20 (P/ Iso) 6 (P/ Iso) 16 (mix P & Iso)Standard & alternative packaging(kg)
Shelf life⁷18Shelf life⁷(months)
AnnotationsCasting by hand or machine
Curing at room temperature or in oven
Very good mechanical and chemical resistance		Annotations

Do you have a question?

Just ask us!

+33 3 44 31 72 00 comm@synthene.com

Footnotes

  1. The exact data are available in our TDS. The thermal and mechanical properties have been tested under specific conditions of curing and post-curing
  2. Simulation of plastic once the resin is cured
  3. Under UV action, the colour tends to darken
  4. All the colours indicated in this document are illustrative and not contractual
  5. After heat treatment
  6. Silicone mould life: according to our experience, depending on the mould geometry, surface, demoulding time, kind of silicone, etc.
  7. On unopened jerrycans or bottles