UNIGARD RE DFDC-1638 BK Dow Thermoplastic, Unspecified

Product Description

UNIGARD™ RE DFDC-1638 Black is a non-halogen, highly flame retardant, thermoplastic, low smoke, low corrosive, and low toxic compound. It is designed for general purpose cable jacket applications. Used as jacket, it easily passes the IEEE-383/UL-1685 (Limited Smoke Test) vertical tray cable burn tests. Cable construction, of course, plays an important role in flame performance. It can be used as a jacket on cables operating at up to 90°C.

This compound can replace PVC, low smoke PVC, and halogenated rubbers as a jacket with excellent fire safety (low smoke, low corrosivity, and low toxicity) and good property balance. This compound meets or exceeds many industry jacket specifications: UL-1277 Tray Cable, UL Subject 444 for general purpose communication cable, mass transit applications, and several international applications.

As a non-halogen, flame retardant jacket, DFDC-1638 Black is also designed to replace the conventional non-halogen jacket products. This compound has much better process-ability than current non-halogen jacket products. It can sustain a higher extrusion temperature (up to 392°F [200°C]), and can be extruded in the typical single-flight metering PE screws.

Features
UNIGARD RE DFDC-1638 Black provides the following features:

Highly flame retardant (IEEE 383 flame test rating)

Environmentally friendly (lead-free, halogen-free, sulfur/antimony-free)

Low smoke, low corrosivity, and low toxicity

Ease of extrusion and no special screw required

Excellent cut-through, crush, and abrasion resistance

Good UV, moisture and fluid resistance

Good balance of toughness and flexibility

Track and erosion resistant

General

Material Status

Commercial: Active

Availability

Africa & Middle East

Asia Pacific

Europe

Latin America

North America

Uses

Communication Wire Jacketing

Flame Retardant Jacketing

Industrial Cable Jacketing

LSZH Jacketing

Wire & Cable Applications

Agency Ratings

Forms

Pellets

Processing Method

Extrusion

Physical	Nominal Value	Unit	Test Method
Density		g/cm³	ASTM D1505
Mechanical Water Absorption - 7 days (158°F)		mg/in²	UL 1581
Environmental Stress-Cracking Resistance (10% Igepal)		hr	ASTM D1693
Mechanical	Nominal Value	Unit	Test Method
Tensile Strength		psi	ASTM D638
Tensile Elongation (Break)		%	ASTM D638
Flexural Modulus - 1% Secant		psi	ASTM D790
Taber Abrasion Resistance²		%	ASTM D1044
Shrinkback - 4 hrs (212°F)		%	REA 89
Elastomers	Nominal Value	Unit	Test Method
Tear Strength (Split)		lbf/in	ASTM D470
Hardness	Nominal Value	Unit	Test Method
Durometer Hardness (Shore A)			ASTM D2240
Thermal	Nominal Value	Unit	Test Method
Brittleness Temperature		°F	ASTM D746
Hot Deformation			UL 1581
212°F		%
250°F		%
Aging	Nominal Value	Unit	Test Method
Retention of Tensile Elongation			ASTM D638
212°F³		%
7 days: 250°F		%
Retention of Tensile Strength			ASTM D638
212°F³		%
7 days: 250°F		%
Electrical	Nominal Value	Unit	Test Method
Volume Resistivity		ohm·cm	ASTM D257
Dielectric Constant			ASTM D150
60 Hz
100 kHz
1 MHz
Dissipation Factor			ASTM D150
60 Hz
100 kHz
1 MHz
Flammability	Nominal Value	Unit	Test Method
Oxygen Index		%	ASTM D2863
Acid Gas Emission Conductivity - Conductivity Change		µS/mm	IEC 754-2
Acid Gas Emission pH - International Electrotechnical Comm.		ppg	IEC 754-2
Acid Gas Test			MIL C-24643
Acid by Weight		%
US Navy pH
Smoke (0.10 in)			NES 711
Smoke Density			ASTM E662
Flaming Mode - D1.5: 0.10 in
Flaming Mode - D4.0: 0.10 in
Flaming Mode - Dm, (corr.): 0.10 in
Non-flaming Mode - D1.5: 0.10 in
Non-flaming Mode - D4.0: 0.10 in
Non-flaming Mode - Dm, (corr.): 0.10 in
Temperature Index (Burning) - Critical		°F	NES 715
Toxicity			NES 713
Additional Information	Nominal Value	Unit	Test Method
Sunlight Resistance			UL 1581
Track and Erosion Resistance			ASTM D2132
Fluid Resistance: Diesel Fuel, MIL-F-16884, 24 hrs, 35°C Extruded tapes (25 mil) or compression-molded plaques, except for these items based on 45 mil/14 AWG (1.63 mm dia.) wires. Tensile Strength Retention: 76% Elongation Retention: 112% Hydraulic Fuel, MIL-H-5606, 24 hrs, 49°C Extruded tapes (25 mil) or compression-molded plaques, except for these items based on 45 mil/14 AWG (1.63 mm dia.) wires. Tensile Strength Retention: 66% Elongation Retention: 98% Hydraulic Fuel, MIL-H-17672, 24 hrs, 49°C Tensile Strength Retention: 72% Elongation Retention: 105% Lubricating Oil, MIL-L-23699, 24 hrs, 49°C Tensile Strength Retention: 80% Elongation Retention: 116% ASTM #2 Oil, 4 hrs, 70°C Tensile Strength Retention: 65% Elongation Retention: 87%
Related Terminology
Product names can be difficult to match. You may have searched any one of these terms to find this product: UNIGARD™ RE DFDC-1638 BK, UNIGARD RE DFDC1638 BK, UNIGARD™ , UNIGARD, UNIGARDREDFDC1638BK, RE DFDC, RE DFDC-1638 BK, RE DFDC1638 BK, RE DFDC:1638 BK, RE DFDC/1638 BK, RE DFDC+1638 BK, RE DFDC_1638 BK, RE DFDC 1638 BK, REDFDC, DFDC1638, 1638BK, REDFDC1638BK, REDFDC_1638BK, Thermoplastic, Unspecified, Thermoplastic Unspecified, TP, Unspecified, TP Unspecified, Dow, ThermoplasticUnspecified, TPUnspecified, DFDCRE
Uses
Uses may also be described by the following terms: Wire and Cable Applications, Wire & Cable Applications, Communication Wire Jacketing, Industrial Cable Jacketing, Flame Retardant Jacketing, LSZH Jacketing.
Agency Ratings
This plastic material has 4 certifications from the following agencies (the number in parentheses shows the number of certifications for that agency): UL (3), IEEE (1).

Extrusion Notes
DFDC-1638 Black can be processed on a wide range of commercially available cable fabrication equipment. Generally, it is recommended that a low compression, shallow metering PE screw be used for processing this product. A very low compression (1.1:1 type) screw can be used successfully; however, breakerplate and 20/40 mesh screen pack should be used to generate adequate back-pressure. Based on tests completed on 2.5 inch, 24:1 Davis Standard extruder, the following typical conditions are recommended as a starting point. However, it may be necessary to optimize conditions for a given set of construction, extruder-screw configuration and tooling. Extruder Extruder L/D 20:1 to 24:1 Screw Metering Depths: 2.5 in: 110-130 mil 3.5 in: 140-170 mil 4.5 in: 200-240 mil Compression Ratio 3:1 Temperature Profile Feed Zone: 300°F-325°F (149°C-162°C) Barrel Zone: 380°F-400°F (193°C-204°C) Head/Die Zone: 350°F-360°F (175°C-180°C) Flat temperature profile: 360°F-400°F (180°C-204°C) Draw-Down Ratio (DDR) Core Diameter less than 0.5 in (13 mm) 1:1 to 1.25:1 Core Diameter greater than 0.5 in (13 mm) 2:1 Tooling Semi-pressure tooling improves surface finish. Tube-on tooling: Retract guider-tip slightly into die. Die Short-land tapered die is preferred. Vacuum Though not usually necessary, on occasion, may help obtain a tight jacket and offset any low DDR effect. Air-Gap/Cooling Water Short air gap (such as 6 inches or 150 mm) and ambient water. Pre-Drying Pre-drying at approximately 158°F (70°C) for 4 hours is recommended in commercially available dehumidifying dryers. Do not heat over 195°F (90°C).

Notes

¹Typical properties: these are not to be construed as specifications.

²1000 cycles

³10 days. Based on 0.045 in./14 AWG (1.63 mm dia.) wires.

UNIGARD™ RE DFDC-1638 BK

Non-Halogen, Flame Retardant, Thermoplastic Jacket Compound

Supplied by The Dow Chemical Company