Crystic Polyester Resin PDME 074 - 6122 - Scott Bader

Identification & Functionality

Chemical Family: Acrylics & Acrylates,
Orthophthalics,
Polyesters,
Unsaturated Polyester (UPE)
Polymer Name: Thermoset Polyester
Composite Materials Functions: Resins, Binders & Matrix Materials,
Surface Finish
Technologies: Composite Materials
Product Families: Composite Materials — Polymers & Resins
Thermoset Resins
Composite Materials — Surface Finishes
Gelcoats & Topcoats

Features & Benefits

Materials Features: Good UV Protection,
High Clarity,
UV Stabilizer Not Added
Ultra Violet Stability: Crystic PDME 074 is ultra violet stabilized by addition of special anti UV additives. The resin also contains acrylic monomers to reduce long term yellowing of the laminates. The resin is also slightly tinted Blue to improve the optical properties.

Applications & Uses

Markets: Building & Construction
Applications: Building & Construction — Building Envelope & Roofing
Waterproofing & Weatherproofing
Composites End Use: Roof Panels
Composites Processing Methods: Continuous Lamination

Properties

Color: Blue
Typical Liquid Resin Properties
Resin Properties - Unfilled Casting (Cured)
Note: The curing schedule was 24 hrs at 20 °C, followed by 3h at 80 °C, except in determining the deflection temperature, where the schedule was 24 hrs at 20 °C, 5h at 80 °C, 3h at 120 °C.

	Value	Units	Test Method / Conditions
Viscosity (at 25°C, Brookfield LVF, SP3, 60 rpm)	175 - 225	cPs	BS 2782: 1980
Refractive Index	1.5272 - 1.528	—	BS 2782: 1980
Acid Value	25 - 35	mg KOH/g	BS 2782: 1980
Solid Content	55 - 60	%	BS 2782: 1980
Stability (at 25°C)	6	Months	BS 2782: 1980
Gel Time (at 25°C, using (Crystic PDME 074 100 pbw, Cobalt (1%) 1.2 pbw Catalyst M 1 pbw))	10 - 15	Minutes	BS 2782: 1980

	Value	Units	Test Method / Conditions
Barcol Hardness (Model GYZ 934-1)	46	—	BS 2782: 1980
Water Absorption (24h, at 23°C)	20	mg	BS 2782: 1980
Deflection Temperature (under load 1.80 MPa)	65	ºC	BS 2782: 1980
Elongation (at break, 20°C)	2	%	BS 2782: 1980
Tensile Strength	71	MPa	BS 2782: 1980
Tensile Modulus	3700	MPa	BS 2782: 1980
Volumetric Shrinkage	6	%	BS 2782: 1980

Technical Details & Test Data

Transparency: Crystic PDME 074 shows good transparency, as the Refractive Index of cured Crystic PDME 074 (RI = 1.5272 – 1.528) matches with that of the E powder bound glass matt. In order to obtain good clarity, the glass matt must be clean, dry, and have a proper high solubility binder for roofing sheet production.
Curing: Crystic PDME 074 is non-accelerated and requires addition of Crystic Low Color accelerator, Accelerator LC up to 0.6 %. The recommended catalyst is Butanox M50. Shortly before use, the correct amount of catalyst should be added and stirred thoroughly into the mixture.

Packaging & Availability

Packaging Type: Totes (IBC)
Packaging: Crystic® PDME 074 is supplied in 225 kg steel containers. For the purpose of shipping, Crystic® PDME 074 is class 3.0 in the IMCO Code (Page 3153)

Storage & Handling

Storage: To ensure maximum stability and maintain optimum properties, polyester resin should be stored in closed containers, maintained below 25°C and away from heat sources and sunlight. All storage should conform to local fire and building codes. Drum stock should be kept to a reasonable minimum with first-in, first-out rotation.

Where bung-in-head containers are stored outside, it is recommended that these be stored in a horizontal position to avoid the ingress of water.

The shelf life of the resin under these conditions is three (3) months.

Crystic® Polyester Resin PDME 074