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Lubricants

Due to their efficient lubricating effect, the following products significantly improve the flow characteristics and process behaviour of compounds during extruding, calendaring, moulding, etc. The additives reduce viscosity, promote dispersion, shorten mixing times and lower mixing temperatures and energy requirements. Furthermore, our lubricants typically improve mould removal by reducing the tackiness of the cured compound, while maintaining good compatibility with most polymers and having a negligible effect on cross-linking. Through the proper integration of Struktol lubricants, the increased dimensional stability and the improved surface finish can add to the quality and appearance of your finished rubber articles.

Zinc soaps are well known process additives in the rubber industry, and show their best effects as the primary lubricant in NR and SBR compounds. Working as internal lubricants, zinc soaps increase the polymer/polymer or polymer/filler flow through the formation of micelles. Additionally, zinc soaps have a slight cure activation effect and often increase the stability of cured NR compounds.

Struktol® HT 202
  • Blend of zinc soaps and fatty acid esters
    Cream coloured pastilles

Packaging: 20 kg bags
Melting point: 90 °C
Density: 1010 kg/m³
Dosage: 1 - 5 phr

  • Reduces compound viscosity and givesbetter flow properties with internal lubrication
  • It is a rubber soluble zinc soap leading to faster physical peptising of NR
  • Easy dispersing at low temperature (above 60 °C), useable on open mills and for one-step mixing
Struktol® A 50 P
  • Zinc soaps of unsaturated fatty acids
  • Light coloured pastilles

Packaging: 20 kg bags
DEnsity: 1050 kg/m³
Melting point: 100 °C
Dosage: 1 - 5 phr

  • Reduces compound viscosity and gives better flow properties with internal lubrication
  • Not suitable for halogen-containing elastomers
Struktol® A 60
  • Soaps of unsaturated fatty acid derivates (mainly zinc soaps)
  • Beige pastilles

Packaging: 20 kg bags
Density: 1170 kg/m³
Melting point: 85 °C
Dosage: 1 - 5 phr

  • Reduces compound viscosity and increases flow properties and internal lubrication
  • Suitable for use in softer compounds or compounds with low mixing temperatures
Struktol® EF 44
  • Blend of fatty acid derivates (mainly zinc soaps)
  • Yellowish pastilles

Packaging: 20 kg bags
Density: 1070 kg/m³
Melting point: 95 °C
Dosage: 1 - 3 phr

  • Excellent flow promoter for compounds with high level of white fillers (silica, chalk, clay, etc.)
  • Process additive for all kinds of non-halogenated polymers
  • Improves dispersion of fillers (especially minerals fillers) and has beneficial influence on batch-to-batch uniformity
  • Decreases the tendency of re-agglomeration of silica
Struktol® HT 266
  • Blend of fatty acid derivates (mainly zinc soaps)
  • Yellowish pastilles

Packaging: 20 kg bags
Density: 1030 kg/m³
Melting point: 100 °C
Dosage: 1 - 3 phr

  • Technical alternative to Struktol EF 44 with an integrated flow promoter
  • Gives improved surface finish and is therefore very effective for extrusion
  • Easy dispersing at low temperature (above 60 °C), useable on open mills and in one-step mixing
Struktol® WA 48
  • Blend of zinc soaps and esters of saturated fatty acids
  • Yellow pastilles

Packaging: 20 kg bags
Density: 1010 kg/m3
Melting point: 85 °C
Dosage: 2 - 4

  • Combination of lubricants tailor-made for use in epichlorhydrin rubber
  • Improves flow properties and reduces stickiness of uncured compound
Struktol® HT 276
  • Blend of zinc salts of aliphatic and aromatic carboxylic acid
  • Beige to brown pastilles

Packaging: 20 kg bags
Density: 1100 kg/m3
Melting point: 100 °C
Dosage: 2 - 4 phr

  • For high filler loadings, based on carbon black or silica
  • Reduces the degree of filler-to-filler agglomeration
  • Enhances scorch safety of both silica and carbon black
  • Reversion resistance and dynamic properties can be improved
Struktol® JV 46 F
  • Blend of fatty acid derivatives
  • Off white to beige pastilles

Packaging: 25 kg bags
Density: 1030 kg/m3
Melting point: 85 °C
Dosage: 1 - 5 phr

  • Improves the extrusion of silica filled compounds
  • Stabilised viscosity during storage
Struktol® ZB 49
  • Blend of fatty acid derivatives
  • Beige to brown pastilles

Packaging: 25 kg bags
Density: 1077 kg/m3
Melting point: 105 °C
Dosage: 1 - 5 phr

  • Dispersing agent for synthetic and NR blend that contain silica with silane coupling agents
  • Used with silane coupling agents it has a synergistic effect
Struktol® GTI
  • Zinc soaps combined with fatty acid esters and inorganic dispersing agent
  • Beige pastilles

Packaging: 20 kg bags
Density: 1100 kg/m³
Dropping point: 103 °C
Dosage: 2 - 5 phr

  • Fast incorporation and improved dispersion of silica, highly reinforcing fillers and also inactive fillers
  • Especially suitable for tire tread compounds where fast mixing and good batch off handling is required

The increased scrutiny of the use of zinc in rubber compounds due to ecological concerns surrounding heavy metals has led to the development of environmentally friendly alternatives. Offering simular effects as traditional zinc soaps, our zinc-free product group is free of heavy metals, enabling the reduction of the total zinc content in a compound without any loss of processability or performance.

Struktol® WB 42
  • Blend of fatty acids and fatty acid derivates
  • Yellowish pastilles

Packaging: 20 kg bags
Density: 1000 kg/m³
Melting point: 90 °C
Dosage: 2 - 5 phr

  • General process additive and mould release agent for the use in nearly all kinds of polymer and filler combinations
  • Particularly effective in the extrusion process
  • Good filler dispersion leads to higher batch-to-batch uniformity
  • Low peroxide demand
Struktol® W 33 Flakes
  • Mixture of fatty acid esters and soaps, bound to chemically inert fillers
  • Brownish pastilles

Packaging: 20 kg bags
Density: 1260 kg/m³
Melting point: 90 °C
Dosage: 2 - 5 phr

  • Dispersing agent and processing additive for standard polymers
  • Promotes better filler dispersion
  • Reduces sticking to process equipment
Struktol® FL
  • Blend of fatty acid esters and soaps on an inorganic carrier
  • Cream coloured pastilles

Packaging: 20 kg bags
Density: 1200 kg/m³
Melting point: 92 °C
Dosage: 2 - 5 phr

  • Dispersing agent and processing additive, suited for use with light-coloured fillers for better homogeneity
  • High UV-stability; does not discolour white compounds
Struktol® HT 200
  • Blend of fatty acids and fatty acid derivatives
  • Cream micro-beads

Packaging: 20 kg bags
Density: 990 kg/m3
Melting point: 54 °C
Dosage: 2 - 6 phr

  • Improved filler dispersion for highly filled compounds and viscosity reduction with increase in vulcanised dynamic stiffness
  • Polar material reduces filler-filler-interactions and promotes dispersion
  • No influence towards compound softening, cure activation promotes increased stiffness
Struktol® HT 205
  • Blend of fatty acid derivatives
  • Yellowish pastilles

Packaging: 20 kg bags
Density: 1000 kg/m³
Melting point: 105 °C
Dosage: 1 - 3 phr

  • Wide range of polymer compatibility
  • Greatly improved flow and release
Struktol® HT 207
  • Mixture of soaps and fatty acid esters
  • Beige pastilles

Packaging: 20 kg bags
Density: 1060 kg/m³
Melting point: 65 °C
Dosage: 1 - 3 phr

  • Improved extrusion rate and reduced mill roll sticking
  • Dispersing effect on silica fillers leading to viscosity reduction and improved flow
  • Reduced tan d in silica filled compounds
Struktol® HT 250
  • Blend of fatty acids and fatty acid derivatives with high molecular weight components
  • Cream pastilles

Packaging: 20 kg bags
Density: 980 kg/m3
Melting point: 58 °C
Dosage: 2 - 8 phr

  • Improved filler dispersion for highly filled compounds and viscosity reduction with batch off handling improvement
  • Filler wetting effect for positive influence on mixing efficiency
  • Flow improvement
  • Reduced softening influence maintains physical properties
Struktol® HT 300
  • Blend of fatty acids and fatty acid derivatives with high molecular weight components
  • Cream pastilles

Packaging: 20 kg bags
Density: 970 kg/m3
Melting point: 60 °C
Dosage: 5 - 15 phr

  • Improved filler dispersion for highly filled compounds and viscosity reduction with increase in compound green strength
  • Reduced filler incorporation time for faster mixing and dispersion improvement
  • Improved extrusion performance

Our fatty acid derivative lubricants are multi-functional, effective in nearly all polymers regardless of the filler type used or the intended final application. They influence all essential processing properties needed for an easy and smooth production. Added at the beginning of the mixing cycle filler dispersion is improved, while best flow and release properties are achieved when adding at the end of mixing.

Struktol® WB 16 Beads
  • Blend of calcium soaps and amides of saturated fatty acids
  • Light yellowish micro-beads

Packaging: 20 kg bags
Density: 1000 kg/m³
Melting point: 102 °C
Dosage: 1 - 3 phr

  • Process additive for nearly all kinds of polymers, especially good for mould flow and release
  • Improves the surface finish of vulcanisates
  • Has stabilising properties in CR blends
Struktol® WB 16 Flakes
  • Blend of calcium soaps and amides of saturated fatty acids
  • Light yellowish pastilles

Packaging: 20 kg bags
Density: 1000 kg/m³
Melting point: 102 °C
Dosage: 1 - 3 phr

  • Process additive for nearly all kinds of polymers, especially good for mould flow and release
  • Improves the surface finish of vulcanisates
  • Has stabilising properties in CR blends
Struktol® WB 18
  • Primary fatty amine
  • Light coloured pastilles

Packaging: 20 kg bags
Density: 810 kg/m³
Melting point: 55 °C
Dosage: 0.5 - 2 phr

  • Dispersant and lubricant for special elastomers such as AEM, HT-ACM, FKM and HNBR
  • Improves demoulding
  • Increases Scorch safety
Struktol® HPS 11
  • Blend of fatty acid derivatives
  • Light tan pastilles

Packaging: 25 kg bags
Density: 980 kg/m³
Melting point: 85 °C
Dosage: 1 - 3 phr

  • Strong effect on release properties
  • Increased flow
  • Suitable for low and high polarity elastomers
Struktol® HT 204
  • Blend of calcium soaps, amides and esters of saturated fatty acids
  • Yellow micro-beads

Packaging: 20 kg bags
Density: 1000 kg/m³
Melting point: 105 °C
Dosage: 1 - 3 phr

  • Superior dispersion qualities
  • Easy dispersing at low temperature (above 60 °C) suitable for mill mixing
  • Significantly improves both flow and release properties
Struktol® HT 204 Flakes
  • Blend of calcium soaps, amides and esters of saturated fatty acids
  • Yellow micro-beads

Packaging: 20 kg bags
Density: 1000 kg/m³
Melting point: 105 °C
Dosage: 1 - 3 phr

  • Superior dispersion qualities
  • Easy dispersing at low temperature (above 60 °C) suitable for mill mixing
  • Significantly improves both flow and release properties
Struktol® HT 254
  • Blend of fatty acid amides
  • Beige pastilles

Packaging: 20 kg bags
Density: 1010 kg/m³
Melting point: 75 °C
Dosage: 1 - 3 phr

  • Tailored process additive for high silica filled compounds
  • Reduces the tendency of re-agglomeration of filler particles
  • Maintains low viscosity during compound storage with good extrusion
  • Positive influence on cured viscoelastic dynamic properties
Struktol® HT 257
  • Blend of fatty acid derivatives
  • Beige pastilles

Packaging: 20 kg bags
Density: 870 kg/m3
Melting point: 83 °C
Dosage: 1 - 3 phr

  • Effective in highly loaded silica and silane systems
  • Big reduction in viscosity
  • No influence on physical properties
  • For green tire compounds with high loadings of silica
Struktol® HT 290
  • Preparation of fatty acids, fatty acid derivates, waxes and amines
  • Yellowish micro-beads

Packaging: 20 kg bags
Density: 1000 kg/m³
Melting point: 78 °C
Dosage: 0.5 - 1.5 phr

  • Silicone free process additive for FPM
  • Improved flow, surface finish and easier demoulding of FPM
Struktol® D5
  • Blend of fatty acid derivatives
  • Brown pastilles

Packaging: 20 kg bags
Density: 1325 kg/m³
Droping point: 101 °C
Dosage: 1 - 5 phr

  • Effective in all common elastomers
  • Improves mould flow and extrusion rate
  • Mould Release is also improved
Struktol® TR 121
  • Oleamide
  • Yellowish pastilles

Packaging: 20 kg bags
Density: 930 kg/m³
Melting point: 73 °C
Dosage: 1 - 5 phr

  • Surface active material
  • Rapid migration after vulcanisation
  • Provides immediate surface slip and release
  • Lowers surface friction efficiently
  • Lubricant for moulding and release
Struktol® TR 131
  • Erucamide
  • Yellowish pastilles

Packaging: 20 kg bags
Density: 930 kg/m³
Melting point: 80 °C
Dosage: 1 - 5 phr

  • Surface active material
  • Medium rate of migration after vulcanisation
  • Provides surface slip and release
  • Reduces surface friction within short term
  • Lubricant for moulding
Struktol® TR 141
  • Stearamide
  • Yellowish pastilles

Packaging: 20 kg bags
Density: 930 kg/m³
Melting point: 98 °C
Dosage: 1 - 5 phr

  • Surface active material
  • Reduced rate of migration after vulcanisation
  • Provides surface slip and release
  • Reduces surface friction during service
Struktol® TR 171
  • Mixture of different fatty acid derivatives
  • Cream coloured micro-beads

Packaging: 20 kg bags
Density: 960 kg/m³
Melting point: 95 °C
Dosage: 1 - 3 phr

  • Lubricant, dispersant and internal release additive
  • Interactions with filler surfaces promote increased dispersion of black and white fillers, flow properties are improved
  • Mould release and reduced mould fouling even for complex geometry injection moulds are optimised

Our product range of fatty acid esters consists of multifunctional lubricant types, that, mostly used in more polar polymers, show excellent flow improvments and lubricating effects independantly which type of filler is used. Based on their proper more polar character they especially show their best allover performance in special polymers just as NBR, HNBR, ACM and EAM even at very low dosages. Struktol WB 212 can be highlighted as very efficient dispersing aid for highly active, light coloured fillers.

Struktol® WB 212
  • Blend of high molecular, aliphatic, hydrophilic fatty acid esters, chemically inert fillers and emulsifier
  • Beige micro-beads

Packaging: 20 kg bags
Density: 1150 kg/m³
Melting point: 55 °C
Dosage: 1 - 3 phr

  • Compatible with all standard polymers
  • Dispersing agent for highly active white fillers and other powder ingredients
  • Highly effective plasticising action in dry compounds
  • Low peroxide demand
Struktol® WB 212 Flakes
  • Blend of high molecular, aliphatic, hydrophilic fatty acid esters, chemically inert fillers and emulsifier
  • Beige pastilles

Packaging: 20 kg bags
Density: 1150 kg/m³
Melting point: 55 °C
Dosage: 1 - 3 phr

  • Compatible with all standard polymers
  • Dispersing agent for highly active white fillers and other powder ingredients
  • Highly effective plasticising action in dry compounds
  • Low peroxide demand
Struktol® WB 217
  • Blend of fatty acid esters
  • White micro-breads

Packaging: 20 kg bags
Density: 960 kg/m³
Melting point: 57 °C
Dosage: 1 - 4 phr

  • Filler dispersing additive for highly loaded compounds based on silica or carbon black
  • Good filler wetting effect leads to improved batch compactness
Struktol® WB 222
  • Ester of saturated fatty acids
  • Beige micro-beads

Packaging: 20 kg bags
Density: 970 kg/m3
Melting point: 65 °C
Dosage: 1 - 3 phr

  • Highly effective process additive and mould release agent for special polymers (NBR, CSM , ACM, EAM)
  • Due to high temperature stability it can be used in UHF, salt bath and fluid bed vulcanisation
  • Especially effective flow improver and release agent in NBR & HNBR products
  • Low peroxide demand

Schill+Seilacher patented organosiloxane based materials serve as internal or external lubricants and show excellent stability at high temperatures. As internal lubricants in polar polymers, they increase the compound flow without influence on heat aging properties. As external lubricants, all siloxane modified process additives form a film between rubber and metal, which lowers the rubber to metal friction and fosters release. Mould fouling generation is significantly reduced by their usage and extrudability of highly loaded cable insulation compounds is also improved.

Struktol® WS 180
  • Silicone modified fatty acid derivative
  • Beige pastilles

Packaging: 20 kg bags
Density: 990 kg/m3
Dropping point: 88 °C
Dosage: 0.5 - 3 phr

  • Highly effective process additive and mould release agent for special polymers such as ECO, ACM, FKM and HNBR
  • Reduces mould fouling in high temperature moulding such as injection moulding or where peroxide cure system is used
  • Very low peroxide demand
  • Also effective as a lubricant in PP, LDPE , ABS, PVC and PS
Struktol® WS 280
  • Silicone modified fatty acid derivative on inorganic carrier
  • Yellowish powder (75 % active content)

Packaging: 20 kg bags
Density: 1200 kg/m³
Dosage: 0.5 - 3 phr

  • Highly effective process additive for special polymers such as FKM, EVA
  • Particularly good flow and release effect in fluorinated and acrylate rubber
  • Low volatility, suitable for use where post curing is required
  • Improves the filler dispersion of FKM compounds
Struktol® WS 280 Paste
  • Silicone modified fatty acid derivative
  • Beige Paste (100 % active content)

Packaging: 25 kg drums
Density: 1000 kg/m³
Dosage: 0.5 - 1,5 phr

  • Highly effective process additive for special polymers such as FKM, EVA
  • Particularly good flow and release effect in fluorinated and acrylate rubber
  • Low volatility, suitable for use where post curing is required
  • Improves the filler dispersion of FKM compounds
Struktol® HT 282
  • Polysiloxane and metal soap on an inert carrier
  • Beige powder (70 % active substance)

Packaging: 20 kg bags
Density: 1300 kg/m³
Dosage: 1 - 3 phr

  • Internal release agent and extrusion additive for very sticky or dry, highly filled compounds, such as cable insulation qualities
  • High degree of thermal stability
Struktol® HT 600
  • Modified organosilicone polymer
  • brown liquid

Packaging: 25 kg drums
Density: 1021 kg/m³
Dosage: 1 - 4 phr

  • Reactive processing additive for all types of peroxide crosslinkable polymers
  • Multi-functional effect:
    - Improved processing with viscosity reduction and release property
    - Increased crosslink density leading to higher tensile strength and elongation with lower compression set properties
  • Heat stable product, crosslinkable, non-blooming
  • Can be used as a replacement of or in addition to co-agents such as TAC, TAIC, TRIM etc.
Struktol® HT 600-DL
  • Modified organosilicone polymer on an inert carrier
  • Beige Powder (70 % active substance)

Packaging: 20 kg bags
Density: 1320 kg/m³
Dosage: 1 - 6 phr

  • Reactive processing additive for all types of peroxide crosslinkable polymers
  • Multi-functional effect:
    - Improved processing with viscosity reduction and release property
    - Increased crosslink density leading to higher tensile strength and elongation with lower compression set properties
  • Heat stable product, crosslinkable, non-blooming
  • Can be used as a replacement of or in addition to co-agents such as TAC, TAIC, TRIM etc.
Struktol® HT 740
  •  Modified organosilicone polymer
  • Transparent to opaque liquid

Packaging: 25 kg drums
Density: 975 kg/m³
Dosage: 1 - 5 phr

  • Reactive processing additive for use in diamine cured elastomers such  as ACM (HT-ACM), AEM (Vamac) and HNBR
  • Improved release during mixing down line processing and moulding are achieved, conventional process promoters can be replaced or reduced
  • Creates strong interaction with white fillers, may replace coupling agents leading to an improved balance of properties, tensile strength and elongation are improved with reduced compression set
  • Products with differing degree of reactivity are available
  • Struktol® HT 740 has lower reactivity
  • Struktol® HT 750 has medium reactivity
  • Struktol® HT 760 has higher reactivity
Struktol® HT 750
  • Modified organosilicone polymer
  • Transparent to opaque liquid

Packaging: 25 kg drums
Density: 975 kg/m³
Dosage: 1 - 5 phr

  • Reactive processing additive for use in diamine cured elastomers such  as ACM (HT-ACM), AEM (Vamac) and HNBR
  • Improved release during mixing down line processing and moulding are achieved, conventional process promoters can be replaced or reduced
  • Creates strong interaction with white fillers, may replace coupling agents leading to an improved balance of properties, tensile strength and elongation are improved with reduced compression set
  • Products with differing degree of reactivity are available
  • Struktol® HT 740 has lower reactivity
  • Struktol® HT 750 has medium reactivity
  • Struktol® HT 760 has higher reactivity
Struktol® HT 750-DL
  • Modified organosilicone polymer on an inert carrier
  • Light coloured powder (50 % active substance)

Packaging: 20 kg bags
Density: 1490 kg/m³
Dosage: 2 - 10 phr

  • Reactive processing additive for use in diamine cured elastomers such  as ACM (HT-ACM), AEM (Vamac) and HNBR
  • Improved release during mixing down line processing and moulding are achieved, conventional process promoters can be replaced or reduced
  • Creates strong interaction with white fillers, may replace coupling agents leading to an improved balance of properties, tensile strength and elongation are improved with reduced compression set
  • Products with differing degree of reactivity are available
  • Struktol® HT 740 has lower reactivity
  • Struktol® HT 750 has medium reactivity
  • Struktol® HT 760 has higher reactivity
Struktol® HT 760
  • Modified organosilicone polymer
  • Transparent to opaque liquid

Packaging: 25 kg drums
Density: 975 kg/m³
Dosage: 1 - 5 phr

  • Reactive processing additive for use in diamine cured elastomers such  as ACM (HT-ACM), AEM (Vamac) and HNBR
  • Improved release during mixing down line processing and moulding are achieved, conventional process promoters can be replaced or reduced
  • Creates strong interaction with white fillers, may replace coupling agents leading to an improved balance of properties, tensile strength and elongation are improved with reduced compression set
  • Products with differing degree of reactivity are available
  • Struktol® HT 740 has lower reactivity
  • Struktol® HT 750 has medium reactivity
  • Struktol® HT 760 has higher reactivity