RenCast™ Polyurethane Range
RenCastTM 6414 A / 5075 A / 5073 A
XD 4608 / XD4609
For the production of castings and in applications requiring high levels of toughness and durability
Key Properties /
  • Withstand moisture well, thus also suitable for thin layers
  • High tear strength and elongation
  • Flexible to -60oC
  • High abrasion resistance

Applications /
  • Foundry Patterns
  • Percussion tools for working sheetmetal and plate
  • Flexible moulds and machinery parts
  • Core boxes
  • Machinery Parts
  • Assembly jigs
/
  • Vibration absorption
  • Impact protection
  • Abrasion and impact-resistant parts
  • Ceramics Industry
  • Rubberlike prototype parts
  • Conveyor rollers

Product description
Product
/
Supply form
/ Viscosity at 25oC (mPas) / Density at 25oC (mPas)
Isocyanates:
RenCast 6414 A
/
White liquid
/ 6500-9500 / 1.1
RenCast 5075 A
/
Opaque liquid
/ 3000-8000 / 1.03
RenCast 5073 A
/
Opaque liquid
/ 2000-4000 / 1.0
Crosslinking agents:
XD 4608
/
liquid
/ 400-450 / 1.05
XD 4609
/
liquid
/ 80-100 / 1.07
Processing methods / Casting resins: solid or face casting
Processing / Mixing proportions (pbw)
RenCast 6414 A / 100 / 100 / 75 / 50 / 25
RenCast 5075 A / 25 / 50 / 75 / 100 / 50 / 25
RenCast 5073 A / 50 / 75 / 100
XD 4608 / 41
XD 4609 / 70 / 60 / 50 / 40 / 35 / 30 / 25 / 20
Resin / Hardener mix (at 25oC)
Appearance / Cream / Orange / Orange / Orange / Orange / Cognac / Cognac / Cognac / Cognac
Mix viscosity / mPas / 5200 / 2700 / 3200 / 3000 / 2800 / 3000 / 2600 / 3200 / 4000
Pot life (1 Kg) / min / 15 - 20 / 15 - 22 / 35 - 40 / 20 - 25 / 20 - 25 / 20 - 25 / 20 - 25 / 20 -25 / 20 – 25
Demouldable after / h / 16 - 24* / 16 - 24* / 4 – 10 / 4 - 6 / 4 - 6 / 4 - 6 / 10 – 12 / 10 – 14 / 14 - 16
Max. casting layer thickness / mm / 10 / 20 / 30 / 50 / 60 / 75 / 90 / 100 / 100
Recommended cure schedule 14 / 24 hours @ Room Temperature + 14 hours @ 40 oC or 7 days @ RT
The isocyanate components listed above can be mixed with each other in any desired proportions. Users can therefore formulate their own casting resin systems to obtain the Shore hardness required in each case.
The table lists some casting resin mixtures and their respective properties.
Processing parameters / The systems should be used in the temperature range between 20 - 25 oC.
Post curing / Cure 14-24hours / RoomTemperature + 14hours / 40oC or 7 days / RT.
Properties / Density / g/cm3 / ca. 1.1 / ca. 1.1 / ca. 1.1 / ca. 1.1 / ca. 1.1 / ca. 1.1 / ca. 1.1 / ca. 1.1 / ca. 1.1
Shore D / ISO 868 / 67 / 55 / 35 / 32 / 30 / 25 / 15
Shore A / ISO 868 / 90 / 85 / 80 / 75 / 60 / 55 / 45
Tensile strength / ISO 527 / MPas / 21 / 11 / 11 / 8 / 8 / 7.5 / 4.5 / 4 / 3
Elongation at break / ISO 527 / % / 127 / 135 / 203 / 263 / 380 / 376 / 344 / 390 / 270
Tear propagation resistance / DIN
53 356 / N/mm2 / 84 / 45 / 39 / 31 / 26.5 / 12.5 / 10 / 8 / 6
Linear shrinkage / mm/m / 0.1 1.4
Abrasion resistance (NEMA) / 100 rpm S 33 sandpaper strips / mg / ca. 7 - 14

* For parts with uniform face-cast layers of 5-15mm, allow 16 - 24 hours of final cure time prior to demoulding. To avoid creep, always store parts on a flat surface without stressing. Follow recommendation for curing before subjecting the parts to loading.

Shrinkage measurement using test specimen size 500 x 50 x 10mm.

Packaging Information
6414 A / 5075 A / 5073 A / XD 4608 / XD 4609 / - / -
180 kg / 200 kg / 200 kg / - / - / - / -
25 kg / - / - / - / - / - / -
4 x 5 kg / 4 x 5 kg / 4 x 4.5 kg / 5 kg / 5 kg / - / -
6 x 300 gr / 6 x 600 gr / 6 x 195 gr / - / - / - / -
Handling precautions / Caution
Huntsman Advanced Materials products are generally quite harmless to handle provided that certain precautions normally taken when handling chemicals are observed. The uncured materials must not, for instance, be allowed to come into contact with foodstuffs or food utensils, and measures should be taken to prevent the uncured materials from coming in contact with the skin, since people with particularly sensitive skin may be affected. The wearing of impervious rubber or plastic gloves will normally be necessary; likewise the use of eye protection. The skin should be thoroughly cleansed at the end of each working period by washing with soap and warm water. The use of solvents is to be avoided. Disposable paper - not cloth towels - should be used to dry the skin. Adequate ventilation of the working area is recommended. These precautions are described in greater detail in publication No. 24264/3/e Hygienic precautions for handling plastics products and in the Material Safety Data sheets for the individual products. These publications are available on request and should be referredto forfuller information.
Vantico Limited
Adhesives and Tooling / All recommendations for the use of our products, whether given by us in writing, verbally, or to be implied from the results of tests carried out by us, are based on the current state of our knowledge. Notwithstanding any such recommendations the Buyer shall remain responsible for satisfying himself that the products as supplied by us are suitable for his intended process or purpose. Since we cannot control the application, use or processing of the products, we cannot accept responsibility therefore. The Buyer shall ensure that the intended use of the products will not infringe any third party’s intellectual property rights. We warrant that our products are free from defects in accordance with and subject to our general conditions of supply.
Duxford, Cambridge England CB2 4QA
Tel: +44 (0) 1223 493 000
Fax: +44 (0) 1223 493 002
/  Vantico Ltd, 2003
 Ren and RenShape are registered trademarks of Vantico GmbH, Basel, Switzerland, trading as Huntsman Advanced Materials
™ RenPaste, RenGel, RenLam, RenCast, RenLease are trademarks of Vantico GmbH, Basel, Switzerland, trading as Huntsman Advanced Materials
September 2004 Publication No.T376 GB / Page 1 of 3 /