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Crystic® Polyester Resin 406COS

1 of 176 products in this brand
Crystic® Polyester Resin 406COS is a non-thixotropic, non-accelerated, orthophthalic unsaturated polyester resin used for casting, artificial marble, and solid surface applications. This product has a 5-minute gel time. It contains UV absorbers, allowing very good resistance to yellowing and UV radiation.

Polymer Name: Polyester (unspecified)

Functions: Resins, Binders & Matrix Materials, Surface Finish

Chemical Family: Polyesters, Unsaturated Polyester (UPE)

Technical Data Sheet

Knowde Enhanced TDS

Identification & Functionality

Features & Benefits

Materials Features
Features and Benefits
  • Low viscosity
  • Low shrinkage
  • Fast curing
  • High filler content
  • Possibility to cast large moldings
  • Fast mold turn round, high production rate

Applications & Uses

Formulation Guidelines

The following cold curing formulation is recommended:

  • CRYSTIC 406COS : 100 parts
  • Catalyst M : 1 to 2 parts
  • Accelerator E : 4 parts

    Catalyst M is a Méthyl Ethyl Kétone Peroxyde at 50% ( MEKP 50. )
    Accelerator E is a cobalt octoate with 0,4% active cobalt.
    Catalyst and accelerator should not be mixed directly together, as they will react with explosive violence.
Recommended Applications

CRYSTIC 406COS has been designed especially for the production of filled castings, polyester concrete and composite stone.

Gel Time

The ambient temperature, the quantity and the type of catalyst will control the gel time of the resin. The typical gel time at 25°C of 100g of resin with 4 ml of Accelerator E and 2ml of catalyst M is 5 minutes.

Properties

Typical Liquid Resin Properties
ValueUnitsTest Method / Conditions
Viscosity (at 25°C, Rhéomat 37.35 s⁻¹)3.9 - 4.7dPa.s
Specific Gravity (at 25°C)1.11
Acid Index19 - 23mg KOH/g
Solid Content (1H, at 150°C)63 - 67%
Stability (with storage recommendations)6Months
Gel Time (at 25°C, for 100 g of resin + 4 ml acc. E + 2 ml catalyst M)4.5 - 5.5Minutes
Cured Properties
ValueUnitsTest Method / Conditions
Barcol Hardness (GYZJ 934-1)46
Heat Deflection Temperature (under load 1.8 MPa)65°CISO 75-2/A
Specific Gravity (at 20°C)1.18
Elongation (at break)2%IS0 527-2
Tensile Strength60MPaISO 527-2
Tensile Modulus3800MPaISO 527-2
Note

Test according to BS 2782 :1980
1MPa = 1MN/m2 = 1N/mm2 = 10,2 kgf/cm2
* cured 24 h at 20°C then 3 h à 80°C except for the HDT where the schedule was 24 h at 20°C then 5 h at 80°C then 3h at 120°C.

Technical Details & Test Data

Additives

Since certain pigments, fillers or extra styrene may the affect properties of CRYSTIC 406COS 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.

Trial Before Use

It is recommended to try the product on a small scale production before the resin is used for long runs.

Packaging & Availability

Packaging
Crystic® 406COS is supplied in 225 kg drums, 1100 kg containers or by road tanker.

Storage & Handling

Storage
Crystic® 406COS should be stored under cover in the dark in the container in which it is supplied. Recommended storage temperature is 5 - 25°C, and should not exceed 25°C. Storing the resin above 25°C will modify the properties of the product and will significantly reduce the shelf life. If stored outside, keep horizontal to avoid water ingress.