SikaBiresin® RG53 Fibre RG500

Fibre filled low pressure RIM system – simulation of ABS

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SikaBiresin® RG53 Fibre RG500 is a very fast 2-component fibre filled low pressure polyurethane RIM system for manufacturing of housings, coverings and car tuning parts. The Product must be processed with an adequate equipment.  

  • Simulation of ABS
  • Good flow behavior
  • Short demolding time
  • Cured parts can be machined
 
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Overview

PRODUCT BENEFITS

  • Simulation of ABS

  • Good flow behavior

  • Short demolding time

  • Cured parts can be machined

 

Areas of Application

SikaBiresin® RG53 Fibre RG500 is designed for manufacturing of stiff housings, coverings and claddings.
Its good mechanical properties make it particularly suitable for components in vehicle construction and car tuning, such as spoilers, front and side skirts. Due to its fibre content this system is recommended for applications where low shrinkage is required.
This product is suitable for experienced professional users only.  

Packaging

     

SikaBiresin® RG53 Fibre (A)

Hobbock

20 kg

SikaBiresin® RG500 (B)

Canister

20 kg

Drum250 kg
 

Product Details

Properties

Component A

SikaBiresin® RG53 Fibre

Component B

SikaBiresin® RG500

Chemical base

Polyol, filled

MDI-based isocyanate

Color

 

mixed

Black

Brown

Black

Density

 

cured

1.2 kg/l

1.23 kg/l

1.21 kg/l

Mixing ratio

by weight

100 : 60

Viscosity (CQP029-4)

6000 mPa·s

110 mPa·s

Pot life (CQP021-4)

at 23 °C

50 seconds

Demolding time

10 minutes

Curing time

at 23 °C

1 day

Tensile strength (CQP036-2 / ISO 527)

35 MPa A

Tensile elongation (CQP036-2 / ISO 527)

11 % A

Flexural strength (CQP027-2 / ISO 178)

55 MPa A

Flexural modulus (CQP027-2 / ISO 178)

1730 MPa A

Impact resistance (CQP038-2 / ISO 179)

48 kJ/m2 A

Heat deflection temperature (CQP030-1 / ISO 75B)

 

after post curing

63 °C A

125 °C B

Shelf life

12 months

CQP = Corporate Quality Procedure

A) curing condition: after demolding 7 days at 23 °CB) post curing: 4 hours at 80 °C + 2 hours at 120 °C

Application

Surface preparation

Surfaces must be clean, dry, and free from grease, oil and dust.
It is recommended to use wax-based release agents. For further information regarding Sika release agent consult the corresponding Product Data Sheet.

Application

The material and processing temperature shall be between 18 °C and 25 °C.
The mold temperature shall be at least 20 °C. Increased mold temperature results in a shorter demolding time.
SikaBiresin® RG53 Fibre RG500 is processed using 2-component low-pressure equipment. These equipment must be specifically set up for processing the parts to be manufactured.

 

The mixing process is performed by dynamic or static-dynamic mixing units.
SikaBiresin® RG53 Fibre RG500 contains glass fibers which have an abrasive effect on the pump and metering unit.
Contact your equipment supplier for further information and recommendation.
The mold temperature has a significant influence on the mechanical and thermal properties of the final part. In case of lower mold temperature those properties may be improved by a post curing process.
Depending on the geometry and weight of the part, it is recommended to use a conformer while post curing.

STORAGE CONDITIONS

Both components must be stored at temperature between 15 °C and 25 °C in original unopened containers.