Question and Answer
3 SILTEM™ RESIN
Grades Available: 3
Available in: Europe, Americas
GENERAL INFORMATION
DESCRIPTION
The SILTEM™ Resin family of amorphous thermoplastic polyetherimide-siloxane (PEI-Si) copolymer resins combine the high heat performance of ULTEM™ resin (PEI) with the flexibility of silicone elastomers (Si). SILTEM resins have a transparent brown base color. The materials’ flexibility make them an excellent choice for both primary and secondary isolation in wire and cable applications. The materials can also be used in injection molding, profile – and film extrusion and blowmolding.
BENEFITS
INTRINSIC HALOGEN FREE FLAME RETARDANT
SILTEM resins are intrinsically flame retardant and do not contain halogen based FR agents nor halogens in the backbone of the polymer The materials offer a Limited Oxygen Index LOI up to 48%. They do comply with RoHS and are e.g., compliant to VDE0472.
FLEXIBILITY
Different grades with different siloxane levels are available. The lowest modulus available is 470MPa in flex modulus (ISO178)
HEAT RESISTANCE
SILTEM resins offer continuous use temperatures up to 150degC and short-term resistance up to 180degC.
RADIATION RESISTANCE
Like ULTEM resin and other Polyimides, SILTEM resins offer very good retention of properties under nuclear radiation environment and are a good material of choice for wire and cable constructions that need to withstand such ionizing radiation.
PROCESSING EASE
In contrast to fluoropolymers SILTEM resins offer a wider process window and they do not need special precaution to avoid corrosion risk during extrusion. Conventional materials of construction can be used for extruder barrel, screw and die-head offering lower system cost due to lower CAPEX and maintenance cost.
ADDITIVE
SILTEM resins can be used as blend component in resin systems based on hard and flexible thermoplastic polyesters offering possibility to improve flexibility and bring FR properties to these materials. More advanced blends are possible with e.g., PEEK and PPS enabling increased flexibility for these resins.
GRADES
GRADES AVAILABLE: 3 (Clear Filters)
LIST VIEW: Expanded Compact
STM1500
SILTEM™ STM1500 resin is a flexible polyetherimide(PEI)-siloxane copolymer designed for wire and cable applications. The material is RoHS compliant and offers a halogen free (according VDE 0472) flame retardant solution that also offers low smoke emission and toxicity. It is an amber colored transparent material that can be selfcolored and easily processed on conventional processing equipment. The material may also be used for extrusion of e.g. corrugated pipes and profiles as well as flexible injection molded parts. ISCC+ certified renewable bio-based solutions are available for this grade via differentiated color nomenclature.
STM1600
SILTEM™ STM1600 resin is a flexible polyetherimide(PEI)-siloxane copolymer designed for wire and cable applications. The material is RoHS compliant and offers a halogen free (according VDE 0472) flame retardant solution that also offers low smoke emission and toxicity. It is an amber colored transparent material that can be selfcolored and easily processed on conventional processing equipment. The material may also be used for extrusion of e.g. corrugated pipes and profiles as well as flexible injection molded parts. ISCC+ certified renewable bio-based solutions are available for this grade via differentiated color nomenclature.
STM1700
SILTEM™ STM1700 resin is a medium flexible polyetherimide(PEI)-siloxane copolymer designed for wire and cable applications. The material is RoHS compliant and offers a halogen free (according VDE 0472) flame retardant solution that also offers low smoke emission and toxicity. It is an amber colored transparent material that can be selfcolored and easily processed on conventional processing equipment. The material may also be used for extrusion of e.g. corrugated pipes and profiles as well as flexible injection molded parts. ISCC+ certified renewable bio-based solutions are available for this grade via differentiated color nomenclature.
