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Crystic® High Performance Resin 3642.3

Crystic® High Performance Resin 3642.3 can be used by spray, filament winding, or hand layup. This resin can be used in many applications, but its high performance makes it particularly suitable for the production of oil tanks. Additionally, it can also be used for direct bonding on sanitary acrylic.

Brand: Crystic (111 products)

Polymer Name: Thermoset Polyester

Functions: Resins, Binders & Matrix Materials, Surface Finish

Chemical Family: Orthophthalics, Unsaturated Polyester (UPE)

Color (Properties): Yellow

Processing Methods: Filament Winding, Hand Lay-up, Spray Lay-up

Technical Data Sheet

Enhanced TDS

Knowde-enriched technical product data sheet

Identification & Functionality

Features & Benefits

Materials Features
Features and Benefits
  • Low viscosity
  • Direct bonding on acrylic
  • Medium reactivity
  • Medium to high HDT
  • Good chemical resistance
  • Rapid and easy impregnation
  • No primer needed Cost savings
  • Rapid hardening even on thin laminates
  • Suitable for many applications
  • Suitable for oil tanks production

Applications & Uses

Markets
Applications
Composites End Use
Composites Processing Methods
Recommended Applications

Crystic 3642.3 can be used by spray or by filament winding but also by hand lay up. The resin can be used in many applications but its high performance makes it particularly suitable for the production of oil tanks and also for direct bonding on sanitary acrylic.

Formulation Guidelines

The following cold curing formulation is recommended:

  • Crystic 3642.3 : 100 part
  • Catalyst M : 1 to 2 parts
  • Accelerator E : 2.5 to 7 parts

Catalyst M is a Methyl Ethyl Ketone Peroxide at 50% such as the Butanox M50 from AKZO. Accelerator E is a cobalt octoate at 0.4 % active cobalt. Catalyst and accelerator should not be mixed directly together as they will react with explosive violence

Gel time

The ambient temperature, the quantity and the type of catalyst and accelerator will control the gel time of the resin. The following table shows the gel time in minutes at 20°C of 100 parts of Crystic 3642.3.

  Parts of Accelerator E
Parts of Catalyst M 2.5 4 7
1 21 minutes 14 minutes 9 minutes
2 15 minutes 11 minutes 7 minutes

Curing should not be carried out at temperatures below 15°C.

The reactivity of CRYSTIC 3642.3 according to the SPI test (NF T 51022) is as follows:

Gel time 4’30 +/- 30’’
Time to pic 7’ +/- 30’’
Pic exotherm temperature 220°C +/- 5°C

 

Properties

Color (Properties)
Typical Liquid Resin Properties
ValueUnitsTest Method / Conditions
Viscosity (at 25°C, Rhéomat at 37.35 s⁻¹)2 - 3dPa.sBS 2782
Specific Gravity (at 25°C)1.1-BS 2782
Volatile Content38 - 42%BS 2782
Acid Value22 - 25mg KOH/gBS 2782
Stability (at 20°C)6MonthsBS 2782
Gel Time (at 20°C, using 1% Catalyst M and 2.5% Accelerator E)18 - 23MinutesBS 2782
Cured Properties
ValueUnitsTest Method / Conditions
Barcol Hardness (Model GYZ 934-1)*45-BS 2782: 1980
Deflection Temperature (under load 1.80 MPa) †*75ºCBS 2782: 1980
Water Absorption (24h, at 23°C)*15mgBS 2782: 1980
Tensile Strength*70MPaBS 2782: 1980
Tensile Modulus*3200MPaBS 2782: 1980
Elongation (at break)*2%BS 2782: 1980
Flexural Strength*65MPaBS 2782: 1980
Flexural Modulus*4000MPaBS 2782: 1980
Specific Gravity (at 25°C)*1.2-BS 2782: 1980
Note

*Curing schedule - 24 hrs at 20ºC, 3 hrs at 80ºC
†Curing schedule - 24 hrs at 20ºC, 5 hrs at 80ºC, 3 hrs at 120ºC

Regulatory & Compliance

Approvals
Crystic® 3642.3 has the SKZ approval for the production of oil tanks.

Technical Details & Test Data

Additives

Since certain pigments, fillers or extra styrene may the affect properties of Crystic 3642.3 their effect should be evaluated before addition to the formulation.

Post Curing

For most applications satisfactory result will be obtained by curing at room temperature (20°C). Some improvement in properties may be obtained by post-curing 16 hours at 40°C after release from the mold.

Packaging & Availability

Packaging Type
Packaging
Crystic® 3642.3 is supplied in 225kg and 1100kg containers. Bulk supplies can be delivered by road tanker.
Variants

Crystic 3642.9 is a high solid content version. Crystic 3642 3Y is a variant version with internal release agent

Storage & Handling

Storage
Crystic® 3642.3 should be stored under cover in the dark within the container it is supplied. It is recommended that the storage temperature should not exceed 20°C.