RENCAST® CW 5156-1 / REN® HY 5158

RENCAST® CW 5156-1 / REN® HY 5158 is a casting resin-filled epoxy casting system with enhanced heat resistance. It is used in the Construction of vacuum deep-drawing and foam molding tools, fixtures, and injection molds for thermoplastic resin systems.

RTU Product Type: Casting Resin

Product End Uses: Fixtures, Foam Molding Tools, Injection Molds, Prototyping

Chemical Family: Epoxy & Epoxy Derivatives

Composites Processing Methods: Casting

Features: Heat Resistance, Long Potlife, Low Viscosity, Room Temperature Curing

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Enhanced TDS

Identification & Functionality

Features & Benefits

Ready-to-Use Product Features
Product Features
  • Low viscosity
  • Long pot life
  • Precures at room temperature

Applications & Uses

Compatible Substrates & Surfaces
Composites Processing Methods
Product End Uses
Markets
Applications
Processing Information

Mix Ratio

Mix Ratio Parts by Weight
RENCAST® CW 5156-1 100
REN® HY 5158 8

Instructions

  • Mix the two components thoroughly in the ratio indicated.
  • If fine details are to be reproduced, a thin layer of mixed resin and hardener should be applied to the mould surface using a short bristle brush before casting.
  • Evacuated material will improve properties.
  • Post-curing will improve final properties.

After cure: Curing

  • Pre-cure parts for 48 hours at 25°C, or for 8 hours at 60°C before demoulding, which should be carried out at room temperature.
  • Commence the post cure of the demoulded part at a temperature no higher than that of the pre-cure.
  • Raise the temperature of the oven by no more than 10°C per hour, until the part has reached 120°C.
  • For optimum heat resistance hold the part for 14 hours at 120°C.

 

Property      
Density ISO 1183 g/cm3 1.62
Hardness ISO 868 Shore D 90
Coefficient of thermal expansion ISO 11359 10-6 k-1 46-48
Deflection temperature ISO 75 °C 130
Compressive strength ISO 604 MPa 140 - 145
Compressive modulus ISO 604 MPa 5800
Flexural strength ISO 178 MPa 72 - 77
Linear shrinkage   mm/m On test
Abrasion resistance Taber mg/100u On test
Application Information
  • The product should be used when in the temperature range 18-25°C.

Properties

Physical Form

Regulatory & Compliance

Certifications & Compliance

Packaging & Availability

Packaging Information

Quantity and Weight

System

RENCAST® CW 5156-1

REN® HY 5158

Quantity and Weight 12.5 kg 6 × 1 kg
Quantity and Weight 265 kg 6.25 kg

Storage & Handling

Storage and Handling Information
  • RENCAST® CW 5156-1 / REN® HY 5158 are stored in a dry place in their original, properly closed containers at the storage temperatures mentioned in the MSDS they will have the shelf lives indicated on the labels.
  • Partly emptied containers should be closed immediately after use.
  • It is 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 the Material Safety Data sheets for the individual products and should be referred to for fuller information.

Other

Appearance
Grey liquid
Physical Properties
ValueUnitsTest Method / Conditions
Viscosity20000.0-30000.0 mPa.smPa.sat 25°C