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Crystic® Transfer Moulding Resin 785PALR

1 of 176 products in this brand
Crystic® Transfer Molding Resin 785PALR is a pre-accelerated, DCPD-based polyester resin specifically designed for use in the resin transfer molding (RTM) applications. It is recommended for use when longer gel times are required, and Butanox M50 is the recommended catalyst.

Chemical Family: Polyesters

Processing Methods: Resin Transfer Molding (RTM)

Functions: Resins, Binders & Matrix Materials, Surface Finish

Features: Good Surface Finish

Technical Data Sheet
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Knowde Enhanced TDS

Identification & Functionality

Chemical Family

Features & Benefits

Materials Features

Applications & Uses

Composites Processing Methods
Formulation Guidelines

For Crystic 785PA LR the recommended catalyst is Butanox M50. The approximate geltimes of Crystic 785PA LR can be determined from the table below.

Pot Life:

Temperature Pot Life in Minutes Using Trigonox 44B
  1.0% 44B 1.5% 44B 2.0% 44B
15°C 150 86 63
20°C 107 61 46
25°C 66 39 30

The resin, mold and workshop should all be at, or above, 15°C before curing is carried out.

Additives:

The addition of any pigment, extra fillers or other additives can adversely affect the resin transfer molding process and the properties of the cured laminate

Properties

Appearance
Mauvish, pink
Typical Liquid Resin Properties
ValueUnitsTest Method / Conditions
Viscosity (at 25°C)2.2poise
Specific Gravity (at 25°C)1.1
Volatile Content34%
Gel Time (at 20°C, using 2% Trigonox 44B)16.5min
Laminate properties
ValueUnitsTest Method / Conditions
Glass Content**23.1%
Tensile Strength**72.5MPa
Tensile Modulus**4600MPa
Elongation at Break**1.9%
Flexural Strength**231MPa
Flexural Modulus**7100MPa
Resin Properties - Filled Casting (Cured)
ValueUnitsTest Method / Conditions
Barcol Hardness (Model GYZJ 934-1)*40
Deflection Temperature under Load (1.80MPa)†56°C
Water Absorption (24 h, at 23°C)*23mg
Tensile Strength*49MPa
Tensile Modulus*2900MPa
Elongation at Break*1.82%
Note

* - Curing Schedule - 24hrs at 20°C, 3 hrs at 80°C

† - Curing Schedule  - 24 hrs at 20°C, 5 hrs at 80°C, 3 hrs at 120°C

** Made with 1 layer Rovicore 450 D3 450; Curing Schedule - 24 hrs at 20°C, 16 hrs at 40°C

Packaging & Availability

Packaging Information

Crystic 785PALR are supplied in 225kg steel containers.

Storage & Handling

Shelf Life
3 Months
Storage Conditions

Crystic 785PALR should be stored in the dark in suitable closed containers. It is recommended that the storage temperature should be less than 20ºC where practical, but should not exceed 30ºC. Ideally, containers should be opened only immediately prior to use.