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Crystic® Polyester Resin 124PA

1 of 176 products in this brand
Crystic® Polyester Resin 124PA is a medium-thixotropic, tropicalized, pre-accelerated, waxed unsaturated polyester resin. It is designed for rapid wetting and impregnation of reinforcements, making it ideal for building boats, water tanks, bath tubs, shower trays, and other products that require water resistance. The unwaxed version of this resin is also available.

Chemical Family: Orthophthalics, Polyesters, Unsaturated Polyester (UPE)

Functions: Resins, Binders & Matrix Materials, Surface Finish

End Uses: FRP Boats, Shower Trays, Tanks, Tubs

Features: Excellent Wetting Behaviour, Medium Viscosity, Thixotropic, Water Resistant

Technical Data Sheet
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Knowde Enhanced TDS

Identification & Functionality

Features & Benefits

Applications & Uses

Formulation Guidelines
Parts by Weight Formulation
Crystic 124PA 100
Catalyst M or MEKP M-50 1 - 2.5

Curing should not be carried out at temperature below 150C and the resin must be allowed to attain workshop temperature before being formulated for use. These resins require the addition of catalyst only to start the curing reaction. The catalyst must be thoroughly stirred in the resin.

Gel Time:
The amount of catalyst and the ambient temperature control the gel time of the resin formulation. The following table shows the gel time of 100 pbw Crystic 123 or 124 containing various levels of Catalyst M.

Parts of Catalyst to 100 parts of catalyzed resins 1 1.5 2
Gel time in minutes at 25°C 37.5 23.25 16.5
Gel time in minutes at 30°C 29 18 12.5

Properties

Appearance
Clear
Typical Liquid Resin Properties
ValueUnitsTest Method / Conditions
Viscosity (at 25°C, spindle 3, 60 RPM)400cPBrookfield LVF Viscometer
Specific Gravity (at 25°C)1.11
Acid Value24mg KOH/g
Volatile Content38%
Laminate properties
ValueUnitsTest Method / Conditions
Glass Content (cure 1)*32%
Tensile Strength (cure 1)*122MPa
Tensile Modulus (cure 1)*8500MPa
Elongation at Break (cure 1)*2%
Flexural Strength (cure 1)*183MPa
Flexural Modulus (cure 1)*6300MPa
Glass Content (cure 2)*32%
Tensile Strength (cure 2)*117MPa
Tensile Modulus (cure 2)*8400MPa
Elongation at Break (cure 2)*2%
Flexural Strength (cure 2)*174MPa
Flexural Modulus (cure 2)*5700MPa
Resin Properties - Unfilled Casting (Cured)
ValueUnitsTest Method / Conditions
Barcol Hardness (Model GYZJ 934 -1)45
Water Absorption (24 h, at 23°C)18mg
Deflection Temperature Under Load (1.80 MPa)69°C
Specific Gravity (at 25°C)1.21
Elongation at Break (at 20°C)2.1%
Tensile Strength65MPa
Tensile Modulus3800MPa
Note

* - Made with 4 layers of 450g/m² mat

Cure 1 - 24 hours at 20°C, 16 hours at 40°C

Cure 2 - As Cure 1, then after 2 hours boil in water (tested wet)

Regulatory & Compliance

Quality Standards

Packaging & Availability

Packaging Type
Packaging Information

Crystic 124PA are supplied in 225kg steel containers.

Storage & Handling

Storage Conditions

Crystic® Polyester Resin 124PA should be stored in the dark in suitable closed containers. It is recommended that the storage temperature should be less than 20°C where practical, but should not exceed 30°C. Ideally, containers should be opened only immediately prior to use.