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Crystic® Polyester Resin 701PAX

1 of 176 products in this brand
Crystic® Polyester Resin 701PAX is a pre-accelerated isophthalic polyester resin with low viscosity and controlled exotherm characteristics. It is designed for use in vacuum infusion processes. This product has Lloyd's approval and is suitable for use in marine, wind energy, building and construction, and transportation.

Polymer Name: Thermoset Polyester

Functions: Resins, Binders & Matrix Materials, Surface Finish

Chemical Family: Isophthalics, Polyesters

Processing Methods: Vacuum Infusion Processing (VIP)

Technical Data Sheet

Knowde Enhanced TDS

Identification & Functionality

Features & Benefits

Features and Benefits

Fully cured laminates made with Crystic 701PAX have excellent strength retention in wet environments. Crystic 701PAX is compatable with most reinforcement types, including carbon fiber and polyaramids such as Kevlar

Applications & Uses

Compatible Reinforcements
Composites Processing Methods
Recommended Applications

Crystic 701PAX was developed primarily as a Vacuum Injection resin, but its properties make it suitable for use in other, similar techniques. The viscosity and exotherm characteristics of Crystic 701PAX make it particularly suitable for the manufacture of large structures by Vacuum Injection methods. Where longer geltimes are required, Crystic 701PA should be used.

Formulation Guidelines

Crystic 701PAX should be allowed to attain workshop temperature (18°C - 20°C) before use. It requires only the addition of a catalyst to start the curing reaction. The recommended catalyst is Catalyst M (or Butanox M50), which should be added at 1% - 2% into the resin. The catalyst should be thoroughly incorporated into the resin, using a low shear mechanical stirrer where possible. Geltimes of Crystic 701PAX and Crystic 701PA, using various catalyst levels, can be approximately determined from the table below.

Temperature Pot Life in minutes using Catalyst M (Butanox M50)
  Crystic 701PAX Crystic 701PA
  1.0 M 2.0 M 3.0 M 1.0 M 2.0 M 3.0 M
Pot life in minutes at 15ºC - - 54 - - 149
Pot life in minutes at 20ºC 85 48 34 233 158 105
Pot life in minutes at 25ºC - - 21 - - 59

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

Properties

Typical Liquid Resin Properties
ValueUnitsTest Method / Conditions
Viscosity (at 25°C)1.6PoiseBS or BS EN ISO test method
Specific Gravity (at 25°C)1.08BS or BS EN ISO test method
Volatile Content50%BS or BS EN ISO test method
Acid Value22mg KOH/gBS or BS EN ISO test method
Stability (at 20°C)3MonthsBS or BS EN ISO test method
Gel Time (at 25°C, using 2 % Butanox M-50 (or equivalent))85MinutesBS or BS EN ISO test method
Laminate properties
ValueUnitsTest Method / Conditions
Glass Content38%BS or BS EN ISO test method
Tensile Strength154MPaBS or BS EN ISO test method
Tensile Modulus8350MPaBS or BS EN ISO test method
Elongation (at break)2.3%BS or BS EN ISO test method
Flexural Strength194MPaBS or BS EN ISO test method
Flexural Modulus8200MPaBS or BS EN ISO test method
Notched Izod Impact Strength101kJ/m²BS or BS EN ISO test method
Charpy Impact Strength79kJ/m²BS or BS EN ISO test method
Resin Properties - Unfilled Casting (Cured)
ValueUnitsTest Method / Conditions
Barcol Hardness (Model GYZ 934-1)*35BS or BS EN ISO test method
Deflection Temperature (under load 1.80 MPa) †*75ºCBS or BS EN ISO test method
Water Absorption (24h, at 23°C)*10mgBS or BS EN ISO test method
Tensile Strength*66MPaBS or BS EN ISO test method
Tensile Modulus*3580MPaBS or BS EN ISO test method
Elongation (at break)*2.5%BS or BS EN ISO test method
Specific Gravity (at 25°C)*1.19BS or BS EN ISO test method
Note

* Curing schedule – 24 hours at 20 ºC, 3 hours at 80ºC
† Curing schedule – 24 hours at 20 ºC, 5 hours at 80ºC, 3 hours at 120 ºC
** CSM Laminate made with 1 layer Rovicore 600 D3 600 Curing schedule – 24 hours at 20ºC, 16 hours at 40ºC

Technical Details & Test Data

Additives

The addition of fillers or pigment pastes can adversely affect the Vacuum Injection process and also the properties of the cured laminate. Users should seek advice from our Technical Service Department before making any additions.

Post Curing

Satisfactory laminates for many applications can be made from Crystic 701PAX by curing at workshop temperature (20°C). For optimum properties, however, laminates should be post-cured before being put into service. The laminate should be allowed to cure for 24 hours at 20°C, and then be oven cured for 16 hours at 40°C or 3 hours at 80°C.

Packaging & Availability

Packaging Type
Packaging
Crystic® 701PAX is supplied in 25kg, 200kg and 1 ton containers. Bulk supplies can be delivered by road tanker.

Storage & Handling

Storage
Crystic® 701PAX 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.