DFDA-5488 NT is a fast cross-linking catalyst masterbatch designed to be used with the scorch retardant DFDB-5451NT ethylene-silane copolymer in order to produce insulation for power and control tray cables up to 1KV. Because the catalyst masterbatch is shipped separately from the silane-modified polyethylene, the components are very shelf-stable. Crosslinking of the insulation system only occurs after hot melt mixing of the two components and exposure to moisture. When DFDA-5488 NT is mixed with DFDB-5451 NT, the resulting system has excellent scorch resistance during extrusion. DFDA-5488 NT includes sufficient antioxidant so that the SI-LINK™ AC system provides excellent processing and product performance. This insulation system is designed to be effective on either copper or aluminum conductors. The recommended level of usage for DFDA-5488 NT is 5% by weight. The specific level will depend on the process and conditions used. For your particular application, contact your Dow representative for recommended levels.

SI-LINK™ AC Crosslinkable Polyethylene DFDB-5451 NT is a scorch retardant ethylene- silane-copolymer developed for use in power cable and control cable applications up to 1 kV. DFDB-5451 NT may be crosslinked under ambient conditions after it is extruded with the DFDA-5488 NT catalyst masterbatch. If a black product is required for UV protection, the addition of DFDB-5410 BK is recommended. Because the catalyst and carbon black masterbatches are shipped separately from the DFDB-5451 NT copolymer, the components are very shelf-stable. Crosslinking of the total system only occurs after hot melt mixing of the components and exposure to moisture and temperature. Specifications When DFDB-5451 NT is crosslinked with DFDA-5488 NT, and optionally, DFDB-5410 BK, it should meet typical 1 kV or less low voltage specifications such as those in: - UL: 854 - ICEA: S-66-524 - CSA: RW90 - IEC: 60502-1

DFDA-5445 BK is a flame retardant carbon black-filled master-batch for use with SI-LINK® PE that can be used in large cables requiring UL-44 horizontal burn flame performance. This product is formulated to pass Horizontal Burn XHHW-2 on larger cables. Specifications DFDA-5445 BK, is used at 35% in conjunction with 60% SI-LINK Cross-linkable Polyethylene DFDA-5451 NT and 5% DFDB-5480 NT Catalyst Master-batch on size 2 AWG conductors and larger. At these concentrations the necessary properties, including flame retardance, the requirements for XHHW-2, RHW-2 and RHH cables as defined by UL-44 and UL-1571, as well as Underground Service Entrance (USE-2) as defined by UL-854 and UL-1581 are met. Horizontal burn performance has been successfully demonstrated on sizes as small as 6 AWG with higher concentrations of DFDA-5445 BK. DFDA-5445 BK is a highly filled black flame retardant master-batch for addition to the standard SI-LINK PE base resin (DFDA-5451) and catalyst (DFDB-5480) moisture cure system. DFDA-5445 BK offers flexibility in tailoring the formulation to meet the horizontal burn requirement on a range of cable sizes. Typically, a usage level of 55% for DFDA-5445 BK will pass the horizontal burn test down to size 6 AWG; a usage level of 35% will pass the horizontal burn test down to size 2 AWG. The economics of the formulation may be optimized for a particular application depending on the cable sizes produced and the UL submittal sizes selected. Such factors as processing conditions, degree of cure and type of conductor can affect the results, so cable manufacturers must determine the optimal formulations for their applications.

SI-LINK™ Crosslinkable Polyethylene DFDA-5451 NT is an ethylene-silane copolymer developed for use in power cable and control cable applications up to 1 kV. DFDA-5451 NT may be crosslinked after it is extruded with the DFDB-5480 NT catalyst masterbatch by exposing it to moisture after cable manufacture. If a black product is required for UV protection, the addition of DFDB-5410 BK carbon black masterbatch is recommended. Because the catalyst and carbon black masterbatches are shipped separate from the DFDA-5451 NT copolymer, the components are very shelf stable. Crosslinking of the total system only occurs after hot melt mixing of the components and exposure to moisture. Specifications When DFDA-5451 NT is crosslinked with DFDB-5480 NT, and optionally, DFDB-5410 BK, it meets typical 1 kV or less low voltage specifications such as those in: - UL 854 - ICEA: S-66-524 - CSA RW90 - IEC: 60502-1

SI-LINK™ DFDA-5481 NT is a catalyst masterbatch developed to be used in conjunction with moisture curable ethylene-silane copolymers, such as Dow SI-LINK™ Polyethylene DFDA-5451 by providing the catalyst necessary to crosslink these compounds. It is formulated to produce faster curing than the DFDB-5480 NT catalyst masterbatch in order to reduce cure times when producing power and control cables for applications up to 1 kV. Because the catalyst masterbatch is shipped separately from the silane-modified polyethylene, the components are very shelf stable. Crosslinking of this insulation system only occurs after hot melt mixing of the two components. DFDA-5481 NT provides excellent scorch resistance when mixed with SI-LINK™ DFDA-5451 NT. DFDA-5481 NT includes sufficient antioxidant so that the insulation system provides excellent processing and product performance stabilization. This insulation system is designed to be effective either for copper or aluminum conductors. The recommended level of usage for DFDA-5481 NT is 5% by weight. The specific level will depend on the process and conditions used. For your particular application, contact your Dow sales or technical representative for recommended levels.

SI-LINK™ Crosslinkable Polyethylene DFDA-6451 Natural with a density of 0.922, and a melt index of 1.5, is a silane-ethylene copolymer for use in medium voltage power cable applications. DFDA-6451 Natural may be crosslinked after it is extruded with DFDB-5480 Natural catalyst masterbatch by allowing moisture to diffuse into the insulation. Specifications SI-Link DFDA-6451 NT / SI-Link DFDB 5480 in combination, can be used as the insulation of XLPE medium voltage cables. DFDA-6451 NT/DFDB 5480 NT, when processed using sound extrusion and crosslinking conditions, meet typical medium voltage requirements as outlined in IEC 60502.

SI-LINK™ DFDB-5400 NT is a RoHS (Reduction of Hazardous Substances)-compliant flame retardant masterbatch designed to be used in conjunction with SI-LINK™ DFDA-5451 NT Polyethylene and the catalyst masterbatch SI-LINK™ DFDB-5480 NT Polyethylene to form a flame retardant SI-LINK polyethylene insulation system. This system is bulletinized by UL as DFDB-5425 and is moisture curable. The specific gravity of the system is 1.04. It is recommended for use in low voltage power cable and industrial cable applications. SI-LINK™ DFDB-5400 NT is formulated to pass the UL-44 horizontal burn test on 14 AWG (1.63 mm) wire, 0.030 in. insulation wall thickness, at a 25% loading with 70% SI-LINK™ DFDA-5451 NT and 5% SI-LINK™ DFDB-5480 NT. UV resistance allowing the wire to be printed "SunRes" may be achieved with the addition of a UV stabilizer package. The formulation for such an additive is available upon request and the resulting product is bulletinized by UL as DFDB-5425 UV. For accelerated curing applications SI-LINK™ DFDB-5400 NT can be used in conjunction with SI-LINK™ AC DFDB-5451 NT Polyethylene and the catalyst masterbatch SI-LINK™ AC DFDA-5488 NT Polyethylene to form a flame retardant SI-LINK™ AC polyethylene insulation system. This system is recognized by UL as DFDB-5425 AC. It is formulated to pass the UL-44 horizontal burn test on 14 AWG (1.63 mm) wire, 0.030" wall thickness, at a 25% loading with 70% SI-LINK™ DFDB-5451 NT and 5% SI-LINK™ AC DFDA-5488 NT. SPECIFICATIONS The DFDB-5425 systems are bulletinized by UL for XHH, XHHW, XHHW-2, RHH, RHW, RHW-2, SIS, USE and USE-2. They are also suitable for CSA RW-90, and RWU-90 applications.

DFDB-5410 BK is a carbon black filled masterbatch developed for use with the SI-LINK™ Polyethylene insulation system. This carbon black masterbatch is especially designed to provide excellent UV protection and to minimize the amount of moisture it absorbs. Advantages DFDB-5410 BK has excellent handling and processing advantages when used in SI-LINK™ Polyethylene insulation system applications: - A Low tendency to adsorb moisture. - Formulated with a high concentration of carbon black allowing processor to use less. Specifications DFDB-5410 BK, when used in conjunction with the SI-LINK™ Polyethylene moisture curable insulation system, provides carbon black for UV protection. To achieve 2.5% carbon black in the final product, DFDB-5410 BK should be incorporated at a level of 6.3%. Packaging DFDB-5410 BK is available in 25-kg foil bags or 1500-lb foil-lined bulk cartons.

SI-LINK™ DFDB-5445 BK is a RoHS (Reduction of Hazardous Substances)-compliant flame retardant masterbatch designed to be used in conjunction with SI-LINK™ DFDA-5451 NT Polyethylene and the catalyst masterbatch SI-LINK™ DFDB-5480 NT Polyethylene to form a flame retardant SI-LINK polyethylene insulation system. This system is bulletinized by UL as DFDB-5445 BK and is moisture curable. The specific gravity of the system is 1.02. It is recommended for use in low voltage power cable and industrial cable applications. It is formulated to pass the UL-44 horizontal burn test on larger cables. SI-LINK™ DFDB-5445 BK, a highly filled black flame retardant master-batch, is intended to be used at a 35% concentration along with 60% SI-LINK Polyethylene DFDA-5451 NT and 5% SI-LINK DFDB-5480 NT Catalyst Master-batch on size #2 AWG conductors and larger. At this concentration the requirements for XHH, XHHW, XHHW-2, RHH, RHW, RHW-2, SIS, USE and USE-2 cables as defined by UL-44, UL-854 are satisfied. . SI-LINK™ DFDB-5445 BK offers flexibility in tailoring the formulation to meet the horizontal burn requirement on a range of cable sizes. At increased concentrations, SI-LINK™ DFDB-5445 BK has been shown to provide horizontal burn test compliance in smaller sizes. The economics of the formulation may be optimized for a particular application depending on the cable sizes produced and the UL submittal sizes selected. Such factors as processing conditions, degree of cure and type of conductor can affect the results, so cable manufacturers must determine the optimal formulations for their applications. Recommendations are available upon request. SPECIFICATIONS The SI-LINK™ DFDB-5445 BK system is bulletinized by UL for XHH, XHHW, XHHW-2, RHH, RHW, RHW-2, SIS, USE and USE-2 on sizes 2 AWG and larger. It is suitable for CSA RW-90, and RWU-90 applications.

DFDB-5480 NT is a catalyst masterbatch developed to be used in conjunction with moisture curable ethylene-silane copolymers such as Dow SI-LINK™ Polyethylene DFDA-5451 NT by providing the catalyst necessary to crosslink these compounds. Because the catalyst masterbatch is shipped separately from the ethylene-silane copolymer, both components are very shelf stable. Crosslinking of this insulation system only occurs after hot melt mixing of the two components and exposure to moisture. DFDB-5480 NT provides excellent scorch resistance when mixed with DFDA-5451 NT. DFDB-5480 NT includes sufficient antioxidant so that the insulation system provides excellent processing and product performance. This insulation system is designed to be effective either for copper or aluminum conductors. The recommended level of usage for DFDB-5480 NT is 5% by weight. The specific level will depend on the process and conditions used. For your particular application, contact your Dow representative for recommended levels.