RALUPOL® UP 4385

Chemical Family: Polyesters

RALUPOL® UP 4385 molding compounds are characterized by excellent dimensional stability with very low processing and post-shrinkage. Due to their high rigidity and excellent heat resistance, RALUPOL® products withstand short-term heat loads. They have excellent electrical insulation and dielectric properties, which are retained even with long-term use at high temperatures. The reason for this is high tracking resistance (CTI> 600 V), arc resistance, glow wire test (GWFI 960 ° C) and a high electrical RTI (relative temperature index) of 170 ° C according to UL 746 (IEC 60216 / T1).

Properties

Physical Form: Granules
Solid

Product families

Applications

Electrical & Electronics — Devices & Assemblies

Other Devices & Assemblies

Electrical & Electronics — Parts & Components

Circuit Breakers
Switches & Relays

Product Families

Plastics — Thermoset Resins

Polyesters

Other characteristics

Brand: RALUPOL
Density: 2130.0 - 2200.0 kg/m³
End Uses: Electric Motors, Relay Bases
Polymer Name: Thermoset Polyester
Processing Methods: Compression Molding, Injection Molding
Markets: Electrical & Electronics
Supply Form: Low dust granulate in moisture resistant bags
Flame Rating: UL 94 V0
Technology: Plastics
Packaging Type: Bags
Fillers Included: Glass Fiber
Material Features: Arc Resistant
Good Mechanical Properties
Low Shrinkage
Product Characteristic: Glass-fiber reinforced Polyester molding compound Low mold shrinkage and post-shrinkage, very high arc resistance, very high mechanical values Primary application(s): Contact bridges, Relays, Circuit breakers (RCD/MCB), Induction Motor connections This product meets the allowed upper limits for heavy metals and PCAs and also conforms to the requirements of the EU directives 2002/95 (RoHS), 2002/96 (WEEE) and 2006/122 (PFOS)
Certifications and Compliance: PFOS - 2006/122/EC; RoHS Compliant; UL 94; Waste Electrical & Electronic Equipment Directive (WEEE)
Plastics and Elastomers End Uses: Electric Motors
Relay Bases
Plastics and Elastomers Functions: Resin
Handling Conditions: Keep cool and dry.Minimum shelf life at 20 ± 5 °C:6 months after date of delivery
Plastics and Elastomers Processing Methods: Compression Molding
Injection Molding

Technical data

Table 1 of 4

7 rows

Characteristic	Value	Unit	Method
Compressive strength	150 - 200	MPa	ISO 604
E-Modulus (flexural test)	13 - 16	GPa	ISO 178
E-Modulus (tensile test)	9 - 11	GPa	ISO 527
Flexural strength	100 - 120	MPa	ISO 178
Impact strength (Charpy)	8 - 11	kJ/m²	ISO 179 / 1eU
Impact strength (Charpy), notched	3,5 - 5,0	kJ/m²	ISO 179 / 1eA
Tensile strength	40 - 70	MPa	ISO 527

Table 2 of 4

8 rows

Characteristic	Value	Unit	Method
Coeff. of linear thermal expansion (longitudinal,50-100°C)	10- 20	10-6 / K	ISO 11359-2
Flammability	V-0 / 0,75	Stufe/mm	UL 94
Glow wire flammability test / GWFI	960 / 1	—	IEC60695-2-12
Glow wire ignitability test / GWIT	825 / 1	—	IEC60695 2-13
Heat deflection temp. HDT C - 8,00 MPa	min. 200	°C	ISO 75
Maximum application temperature (<50 h)	220	°C	IEC 60216/T1
Maximum application temperature (20 000 h)	170	°C	IEC 60216/T1
Thermal conductivity	0,9 - 1,1	W / m * K	ASTM E 1461

Table 3 of 4

5 rows

Characteristic	Value	Unit	Method
Moulding shrinkage (longitudinal)	0,4 - 0,7	%	ISO 2577
Post shrinkage (168 h / 110 °C)	max. 0,1	%	ISO 2577
Specific gravity	1.90 - 2.10	g/cm³	ISO 1183
Water absorption (24 h / 23 °C)	max. 35 / max. 0,5	mg / %	ISO 62
Apparent Density	0.75 - 0.95	g/cm³	ISO 60

Table 4 of 4