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Crystic® Polyester Resin 125PA

1 of 176 products in this brand
Crystic® Polyester Resin 125PA is a quality orthophthalic-based unsaturated polyester resin developed specifically for the manufacture of GRP moldings. This medium-viscosity polyester resin meets the requirements of BS 3532:1990 as a type "A" resin and can be used for flat surface laminations. Laminates made with this product have good mechanical strength, high rigidity and impact resistance, and excellent dimensional stability. When used with the recommended curing system, its curing properties make it especially suitable for fast production processes.

Polymer Name: Thermoset Polyester

Functions: Resins, Binders & Matrix Materials, Surface Finish

Chemical Family: Orthophthalics, Unsaturated Polyester (UPE)

Color: Pink

Technical Data Sheet

Knowde Enhanced TDS

Identification & Functionality

Features & Benefits

Applications & Uses

Formulation Guidelines

Crystic 125PA may be used in the following cold curing formulations:

Parts by Weight Formulation No.1
Crystic 125PA
Catalyst M
100
2

 

Properties

Color
Typical Properties
ValueUnitsTest Method / Conditions
Acid Value21mg KOH/g
Viscosity (at 25°C, Brookfield LVF, SP3, 60 rpm)500cPs
Solid Content59%
Styrene Content41%
Gel Time (at 25°C, using 100g Crystic 125PA and 2 ml Catalyst M)17Minutes
Stability (at 25°C)3Months
Resin Properties - Unfilled Casting (Cured)
ValueUnitsTest Method / Conditions
Barcol Hardness (Model GYZ 934-1)40BS 2782: 1980
Water Absorption (24h, at 23°C)24mgBS 2782: 1980
Deflection Temperature (under load 1.80 MPa)69ºCBS 2782: 1980
Elongation (at break, 20°C)2%BS 2782: 1980
Tensile Strength65MPaBS 2782: 1980
Tensile Modulus3500MPaBS 2782: 1980

Technical Details & Test Data

Curing

Crystic 125PA requires only the addition of catalyst to start the curing reaction. It should be thoroughly dispersed in the resin. The accelerated resin without catalyst will usually remain usable at ambient temperature (25°C) for approximately 3 months. Shortly before use, the correct amount of catalyst should be added and stirred thoroughly into the mixture. When catalyst is added to resin which has been accelerated for several days, the pot life may be shorter than that of freshly accelerated resin.

Packaging & Availability

Packaging Type
Packaging
Crystic® 125PA is supplied in 225 kg steel containers. For the purpose of shipping, Crystic® 125PA is class 3.0 in the IMCO Code (Page 3153)

Storage & Handling

Shelf Life
3 Months
Storage
It is recommended that storage temperatures should not exceed 25°C, and that containers should be stored away from direct sunlight and not be opened until they are required for use. The shelf life of the resin under these conditions is 3 months.