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Advanced
Filling compounds for
Fibre Optic Cables
Duragel
Adds life to your cable
The Duragel range of optical cable filling compounds represents the latest technology in thixotropic gel production and has been specifically designed to meet the special demands of international fibre cable manufacturers and the long life requirements of system installers and operators.
Emphasis has been placed on quality control and product consistency to ensure ease of processing and minimise down-time during cable production. Thixotropic properties and yield values have been carefully balanced in each grade to give the cable maker maximum control of fibre over-length, tube diameter and wall thickness.
All Duragel grades are formulated using 'industry proven' raw materials that are fully compatible with optical cable polymers and sensitive fibre coatings.
Duragel optical filling compounds are fully supported by R&D and continuous laboratory analysis. Every year thousands of tonnes of filling compound are supplied to the international telecom cable market.
Duragels represent the latest technology in fibre optic filling compounds and are designed to meet the exacting processing requirements of cable makers and the long-life performance demanded by system operators worldwide.
Grade Selection
Duragel optical cable filling and flooding gels are available in a range of grades and viscosities to suit varying production techniques and customer specifications.
Standard Duragel grades are based on either mineral oils, synthetic oils, silicone oils or blends that combine the beneficial properties of each oil in one gel.
Normal grade selection is made on the basis of low temperature flexibility and high temperature drainage and oil separation. A quick identification chart is given below. It should be noted that the high temperature limit quoted below refers to the maximum temperature at which zero oil separation and cable drainage is obtained. All Duragels will process safely at extrusion temperatures and will withstand momentary excursions to >200°C without effect.
All standard Duragel filling gels are supplied with a cone penetration of 400dmm at 25°C and with similar viscosities, yield values and thixotropy. This enables the cable maker to change grades with the minimum of adjustment at the extrusion line.
DURAGEL GRADES
DESIGNATION TEMPERATURE RANGE
M -30°C to +100°C
MS -40°C to +150°C
S -45°C to +100°C
SL -50°C to +100°C
F -40°C to +100°C
Duragel F is for flooding only. It cannot be filled into tubes or immediately adjacent to fibres.
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PACKAGING
All Duragel cable filling grades are supplied in corrosion resistant lacquer coated steel drums. The drums are straight-sided (without rolling rims) to ensure that no air is incorporated into the gel from around the drum follower plate during pumping.
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ZERO OIL SEPARATION
Duragel MS and Duragel F grades have been modified to give zero oil separation at +150°C to meet the more stringent requirements of the latest International specifications and are fully source-approved by the DoT.
All Duragels have thixotropic properties which provide shear thinning during pumping and slow viscosity recovery for controlled processing.
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Datagram Duragel MS
Cable Filling Gel
for Fibre Optic Cables
DESCRIPTION
Duragel MS cable filling compound is a soft thixotropic gel designed for stable processing and controlled overfeed of optical fibres for maximum strain relief in the cable package.
Duragel MS has been especially formulated to meet the stringent international requirements of the DoT. It has zero oil separation at 150°C while maintaining total flexibility at low temperatures. This while translucent gel can be processed at ambient or after heating according to the production system utilised.
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CHARACTERISTICS
THIXOTROPIC FOR EASY PROCESSING
ZERO OIL SEPARATION
LOW TEMPERATURE FLEXIBILITY
DRUM TO DRUM CONSISTENCY
TYPICAL PROPERTIES
Relative density (g/cm3) 0.87
Flash point, COC (°C) ´242
Volatile loss, 24hrs 150°C (Wt%) 0.19
Oxygen induction Time 190°C (min) 32
Oil separation, 150°C 24hrs (Wt%) Zero
Viscosity/Thixotropy (210/2000/210 s-1)
at 210 s-1 25°C (Pa.s) 5.10
at 2000 s-1 25°C (Pa.s) 2.11
at 210 s-1 25°C (Pa.s) 4.18
Yield Point 25°C (Pa) 43
Cone Pen. 150g at +25°C (dmm) 397
Cone Pen. 150g at -30°C (dmm) 217
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COMPATIBILITY
Duragel Grade MS gels are compatible with most cable grade polymers. Tests on typical polymers used in the production of fibre optic tubes show no adverse reaction. Minimum oil extraction may occur when in contact with low density oletins although not excessive.
HANDLING
No special handling precautions are required. These soft gels are quickly and easily removed by wiping. A compatible solvent may assist in cable cleaning.
All Duragels have thixotropic properties which provide shear thinning during pumping and slow viscosity recovery for controlled processing.
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THIXOTROPY
Duragel MS is formulated to give maximum thixotropy. It has a solid gel structure when static but when it is sheared the gel structure is temporarily broken and the compound becomes fluid. When the shear force is removed the compound progressively recovers its gel structure. Thixotropy is essential when processing fibres into cable and to minimise fibre attenuation during service life.
This data is given in good faith and correct to the best of our knowledge at publication. Values quoted are typical and are not a guarantee of performance. UniKing reserves the right to make alterations and improvements without notice.
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Material Safety Data Sheet
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Product Code:
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MS
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PRODUCT INDENTIFICATION
Chemical Type:
Form:
Colour:
Odour:
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Aliphatic hydrocarbon
Thixotropic gel
Clear White
Minimal
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PHYSICAL DATA
Density (°C):
Vapour pressure, Pa (°C):
Viscosity Pa.s/200s-1 (°C):
Solubility in water %wt (°C):
Flash Point °C (PMCC):
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0.90 (15)
<1000 (20)
3.13 (25):
Nil
>200
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TRANSPORT
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Unregulated
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STORAGE and HANDLING
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Avoid extremely high temperatures and strong oxidizing agents. Store bulk quantities in non-melt containers.
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PERSONAL PROTECTION
Respiratory:
Eyes:
Hands:
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Not necessary under normal conditions.
Chemical goggles or face shield advisable.
Gloves sensitive to chemical penetration advisable.
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INDUSTRIAL HYGIENE
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Ventilation is recommended when handling material in bulk.
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FIRE and EXPLOSION
Unusual hazards:
Extinguishing media:
Respiratory protection:
Hazardous decomposition products:
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None known
Carbon dioxide, dry chemicals, foam, water spray (fog)
Do not breathe fumes. Use self-contained breathing apparatus.
Oxides of carbon.
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SPILLAGE/LEAKAGE
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Contain any spills with dikes or absorbents to prevent migration and entry into sewers or streams.
Take up small spills with dry chemical absorbent.
Large spills may be taken up by pump or vacuum and finished off with dry absorbent.
Large areas of contaminated soil may require excavation.
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FIRST AID
Eyes:
Skin:
Ingestion:
Inhalation:
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After contact, rinse immediately with plently of water and seek medical advice.
After contact, wash immediately with plently of soap and water.
DO NOT INDUCE VOMITING
Remove to fresh air.
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TOXICITY
Ocular:
Dermal:
Inhalation:
Ingestion:
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Not expected to be an irritant
Not expected to be toxic or an irritant
Inhalation of mists or vapours at elevated temperatures may cause respiratory irritation.
Not expected to be toxic.
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Although the above information is presented in good faith and believed to be correct, we make no representation as to the completeness or accuracy thereof. Information is supplied on the condition that persons receiving the same will make their own determination as to its safety and suitability for their purposes prior to use. On no account will we be responsible for damages of any nature whatsoever resulting from the use of or reliance upon this information. No representations or warranties either expressed or implied, of merchantability, fitness for a particular purpose or of any other nature are made hereunder with respect to information or the product to which the information refers.
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Datagram Duragel F
Cable Flooding Gel
for Fibre Optic Cables
DESCRIPTION
Duragel F cable flooding compound is a thixotropic gel designed for cold processing and total interstital filling and flooding over loose tubes. It will not drain at high temperatures.
Duragel F meets the stringent international telecom requirements. It has zero oil separation at 150°C and has full DoT source approval. Duragel F can be pumped into cables at ambient temperatures without the usual shrinkage and contraction experienced with all hot melt jellies. Duragel F is not designed for filling inside loose tubes or buffering bundled fibres.
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CHARACTERISTICS
THIXOTROPIC FOR COLD FILLING
NON-DRIP AND NON-MELTING
CONSISTENT DRUM TO DRUM VISCOSITY
ZERO OIL SEPARATION.
TYPICAL PROPERTIES
Relative density (g/cm3) 0.86
Flash point, COC (°C) >240
Cone Pen. 150g at +25°C (dmm) 280
Volatile loss, 24hrs 150°C (Wt%) 0.21
Oil separation, 150°C 24hrs (Wt%) Zero
Viscosity/Thixotropy (210/2000/210 s-1)
at 210 s-1 25°C (Pa.s) 7.40
at 2000 s-1 25°C (Pa.s) 1.27
at 210 s-1 25°C (Pa.s) 3.64
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COMPATIBILITY
Duragel Grade F gels are compatible with most cable grade polymers. Tests on typical polymers used in the production of fibre optic tubes show no adverse reaction. Minimum oil extraction may occur when in contact with low density oletins although not excessive.
HANDLING
No special handling precautions are required. These soft gels are quickly and easily removed by wiping. A compatible solvent may assist in cable cleaning.
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THIXOTROPY
Duragel F is formulated for maximum thixotropy. It has a solid gel structure when static but when sheared by pumping the gel structure is temporarily broken and the compound becomes fluid allowing it to be pressure filled into the cable without heat or shrinkage. When in the cable and the shear force is removed the compound progressively recovers its solid gel structure and forms a permanent water block.
This data is given in good faith and correct to the best of our knowledge at publication. Values quoted are typical and are not a guarantee of performance. UniKing reserves the right to make alterations and improvements without notice.
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Material Safety Data Sheet
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Product Code:
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F
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PRODUCT INDENTIFICATION
Chemical Type:
Form:
Colour:
Odour:
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Aliphatic hydrocarbon
Thixotropic gel
Transluscent amber
Minimal
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PHYSICAL DATA
Density (°C):
Vapour pressure, Pa (°C):
Viscosity Pa.s/200s-1 (°C):
Solubility in water %wt (°C):
Flash Point °C (PMCC):
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0.90 (15)
<1000 (20)
5.07 (25):
Nil
>200
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TRANSPORT
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Unregulated
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STORAGE and HANDLING
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Avoid extremely high temperatures and strong oxidizing agents. Store bulk quantities in non-melt containers.
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PERSONAL PROTECTION
Respiratory:
Eyes:
Hands:
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Not necessary under normal conditions.
Chemical goggles or face shield advisable.
Gloves sensitive to chemical penetration advisable.
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INDUSTRIAL HYGIENE
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Ventilation is recommended when handling material in bulk.
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FIRE and EXPLOSION
Unusual hazards:
Extinguishing media:
Respiratory protection:
Hazardous decomposition products:
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None known
Carbon dioxide, dry chemicals, foam, water spray (fog)
Do not breathe fumes. Use self-contained breathing apparatus.
Oxides of carbon.
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SPILLAGE/LEAKAGE
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Contain any spills with dikes or absorbents to prevent migration and entry into sewers or streams.
Take up small spills with dry chemical absorbent.
Large spills may be taken up by pump or vacuum and finished off with dry absorbent.
Large areas of contaminated soil may require excavation.
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FIRST AID
Eyes:
Skin:
Ingestion:
Inhalation:
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|
After contact, rinse immediately with plently of water and seek medical advice.
After contact, wash immediately with plently of soap and water.
DO NOT INDUCE VOMITING
Remove to fresh air.
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TOXICITY
Ocular:
Dermal:
Inhalation:
Ingestion:
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Not expected to be an irritant
Not expected to be toxic or an irritant
Inhalation of mists or vapours at elevated temperatures may cause respiratory irritation.
Not expected to be toxic.
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Although the above information is presented in good faith and believed to be correct, we make no representation as to the completeness or accuracy thereof. Information is supplied on the condition that persons receiving the same will make their own determination as to its safety and suitability for their purposes prior to use. On no account will we be responsible for damages of any nature whatsoever resulting from the use of or reliance upon this information. No representations or warranties either expressed or implied, of merchantability, fitness for a particular purpose or of any other nature are made hereunder with respect to information or the product to which the information refers.
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