WELCOME TO CLWYD COMPOUNDERS LTD. OVER 30 YEARS OF COMPOUNDING EXCELLENCE: 1979-2014
Founded in 1979 by John and Sarah Haywood Early 1980s introduced Fluoroelastomer (FKM) mixing 1990s development of laboratory and test facilities, introduction of total quality management principles 2000 - new silicone plant opened with clean room conditions to enable specialty compounds such as Perfluoroelastomers (FFKM) and Fluorosilicones BRIEF HISTORY 2014 today Clwyd employ more than 70 office and factory staff and supply compounds to markets such as Aerospace, Oil & Gas and Pharmaceutical
Markets REACH Contacts TOTAL COMPOUNDING SERVICE Selection End-User Specification and Polymer Suitability Polymer Types and Profiles Development Unbiased and Impartial Advice Compound Development Projects and Quotations Basic Physical Testing Testing Fully-Equipped Laboratory Range of Test Facilities Manufacture Manufacturing Facility Mixing Facilities Dedicated Silicone and FFKM Plant Traceability
SELECTION End-User Specification & Polymer Suitability Vast range of polymers to select from Choice dependent on their properties must be suitable for both compound processing and end user specification Dilemmas of conflicting requirements from physical and chemical specifications for end-use applications Team of experienced and highly trained Rubber Technologists to assist and propose best solution
SELECTION Polymer Types and Profiles STANDARD GRADES Natural Rubber (NR) Styrene Butadiene (SBR) Polychloroprene (PCR; Neoprene) Nitrile Rubber (NBR) Nitrile Polyvinylchloride (NBR/PVC) Carboxylated Nitrile Rubber (XNBR) Ethylene Propylene Diene Modified (EPDM) Rubber Chlorosulfonated Polyethylene Rubber (CSM) Butyl (IIR) Bromobutyl (BIIR) and Chlorobutyl (CIIR) Epichlorohydrin (ECO) Vamac Millable Polyurethane (PU) SILICONES Silicone (VMQ) Fluorosilicone (FVMQ) HIGH PERFORMANCE ELASTOMERS Fluoroelastomer (FKM) Perfluoroelastomer (FFKM) Hydrogenated Nitrile Rubber (HNBR) Propylene Tetrafluoroethylene (FEPM; Aflas )
NATURAL RUBBER (NR) Common Name Natural Rubber @ 100 c Unsatisfactory Fuel Resistance Chemical Name Polyisoprene *ASTM Fuel B @ 40 c Nomenclature NR Solvent Resistance (20 c) Unsatisfactory Cost Factor Alcohol Good Hardness Range 30-95 Acetone Fair Colours Full Range Benzene Unsatisfactory Heat Resistance ( c) Chemical Resistance Maximum Continuous 75 c Acids Fair Maximum Intermittent 105 c Bases Good Low Temperature Resistance -60 c Physical Strength Excellent Resistances Compression Set Good Oxidation Fair Tear & Abrasion Resistance Excellent Ozone & Weathering Poor Resilience Excellent Oil Resistance Permeability to Gases Poor *ASTM Oil No. 1 @ 20 c Poor Electrical Strength Excellent @ 100 c Unsatisfactory Flame Resistance Poor *ASTM Oil No. 3 @ 20 c Unsatisfactory Water Resistance Very Good
NATURAL RUBBER (NR) Properties Widest range of hardnesses Very strong (naturally self-reinforcing) and extremely resilient Good compression set Good resistance to inorganic chemicals Very good deformation capacity Good flex fatigue resistance Very good abrasion resistance Limitations Lack of resistance to oil and organic fluids Relatively low maximum temperatures (75 C continuous, 100 C intermittent) Poor ozone resistance, with tendency to perish in open air (can be improved to some extent by careful compounding). Typical Applications Components which are protected from constant air changes - i.e. inside machinery - and which do not come into contact with any oil or oil based fluids Applications requiring strength and resistance to abrasion Sealing and shock absorption
STYRENE BUTADIENE RUBBER (SBR) Common Name SBR @ 100 c Unsatisfactory Chemical Name Styrene Butadiene Rubber Fuel Resistance *ASTM Fuel B @ 40 c Nomenclature SBR Solvent Resistance (20 c) Cost Factor 1 Alchohol Good Hardness Range 40-95 Acetone Fair Heat Resistance ( c) Unsatisfactory Colours Full Range Benzene Unsatisfactory Chemical Resistance Maximum Continuous 85 c Acids Fair Maximum Intermittent 115 c Bases Good Low Temperature Resistance -55 c Physical Strength Good Resistances Compression Set Good Oxidation Fair Tear & Abrasion Resistance Good Ozone & Weathering Poor Resilience Good Oil Resistance Permeability to Gases Fairly Low *ASTM Oil No. 1 @ 20 c Poor Electrical Strength Excellent @ 100 c Unsatisfactory Flame Resistance Poor *ASTM Oil No. 3 @ 20 c Unsatisfactory Water Resistance Good
STYRENE BUTADIENE RUBBER (SBR) Properties Good physical strength Good tear and abrasion resistance Good ageing stability Better wet skid resistance to NR Limitations Does not resist oil or fuels Prone to weathering Lower resilience to NR Inferior heat build-up to NR Typical Applications Non-mechanical high-volume products such as shoe soles and heels or car tyres Gaskets Chewing gum
POLYCHLOROPRENE (CR; AKA NEOPRENE) Common Name Neoprene @ 100 c Fair Chemical Name Polychloroprene Rubber Fuel Resistance *ASTM Fuel B @ 40 c Nomenclature CR Solvent Resistance (20 c) Poor Cost Factor 2 Alchohol Good Hardness Range 30-90 Acetone Fair Heat Resistance ( c) Colours Full Range Benzene Unsatisfactory Chemical Resistance Maximum Continuous 95 c Acids Good Maximum Intermittent 125 c Bases Fair Low Temperature Resistance -40 c Physical Strength Good Resistances Compression Set Fair to Good Oxidation Very Good Tear & Abrasion Resistance Good Ozone & Weathering Very Good Resilience Very Good Oil Resistance Permeability to Gases Low *ASTM Oil No. 1 @ 20 c Excellent Electrical Strength Good @ 100 c Good Flame Resistance Self-extuinguishing *ASTM Oil No. 3 @ 20 c Good Water Resistance Good
POLYCHLOROPRENE (CR; AKA NEOPRENE) Properties Good all-round properties Resists degradation from sun, ozone and weather Performs well in contact with oils and many chemicals Remains useful over a wide temperature range Displays outstanding physical toughness Resists burning inherently better than exclusively hydrocarbon rubbers Outstanding resistance to damage caused by flexing and twisting Limitations Attacked by strong oxidizing acids, esters, ketones, chlorinated, aromatic and nitro hydrocarbons Limited flexibility at low temperatures Typical Applications Wetsuits and professional diving suits, gloves, refrigeration seals, gaskets, hoses and car fan belts
NITRILE RUBBER (NBR) Common Name Nitrile @ 100 c Good Chemical Name Acrylonitrile Butadiene Rubber Fuel Resistance *ASTM Fuel B @ 40 c Nomenclature NBR Solvent Resistance (20 c) Cost Factor 2 Alchohol Good Hardness Range 40-100 Acetone Unsatisfactory Heat Resistance ( c) Colours Limited Range Benzene Unsatisfactory Chemical Resistance Maximum Continuous 100 c Acids Good Maximum Intermittent 130 c Bases Fair Low Temperature Resistance -20 c Physical Strength Good Resistances Compression Set Good Oxidation Good Tear & Abrasion Resistance Fair Good Ozone & Weathering Fair Resilience Good Oil Resistance Permeability to Gases Low *ASTM Oil No. 1 @ 20 c Excellent Electrical Strength Poor @ 100 c Good Flame Resistance Poor *ASTM Oil No. 3 @ 20 c Excellent Water Resistance Good
NITRILE RUBBER (NBR) Properties Excellent resistance to oil Good resilience Physical and chemical properties dependent on the ACN content; the higher the ACN content the better the resistance but the lower the flexibility Limitations Inferior to NR in terms of physical strength and flexibility Can be attached by ozone, aromatic hydrocarbons, ketones, esters and aldehydes. Typical Applications Aeronautical (good heat resistance, up to around 110 C) Oil resistant seals and diaphragms Non-latex gloves Rollers
NITRILE POLYVINYLCHLORIDE RUBBER (NBR/PVC) Common Name PVC Nitrile @ 100 c Good Chemical Name Nitrile Polyvinylchloride Rubber Fuel Resistance *ASTM Fuel B @ 40 c Nomenclature NBR/PVC Solvent Resistance (20 c) Cost Factor 2 Alchohol Good Hardness Range 40-95 Acetone Unsatisfactory Heat Resistance ( c) Colours Limited Range Benzene Unsatisfactory Chemical Resistance Maximum Continuous 100 c Acids Good Maximum Intermittent 130 c Bases Fair Low Temperature Resistance -20 c Physical Strength Good Resistances Compression Set Good Oxidation Good Tear & Abrasion Resistance Fair Good Ozone & Weathering Excellent Resilience Good Oil Resistance Permeability to Gases Low *ASTM Oil No. 1 @ 20 c Good Electrical Strength Poor @ 100 c Good Flame Resistance Excellent *ASTM Oil No. 3 @ 20 c Good Water Resistance Good
NITRILE POLYVINYLCHLORIDE RUBBER (NBR/PVC) Properties NBR/PVC blends have very similar properties to NBR compounds but with improved resistance to ozone and weathering Good flame retarding attributes Limitations Can be sometimes difficult to mould and process Typical Applications Hoses Portable fuel tank covers and liners Boots
CARBOXYLATED NITRILE RUBBER (XNBR) Common Name Carboxylated Nitrile @ 100 c Good Chemical Name Fuel Resistance Carboxylated Nitrile Rubber *ASTM Fuel B @ 40 c Good Nomenclature XNBR Solvent Resistance (20 c) Cost Factor 3 Alchohol Good Hardness Range 50-90 Acetone Good Colours Limited Range Benzene Good Heat Resistance ( c) Chemical Resistance Maximum Continuous 125 c Acids Good Maximum Intermittent 140 c Bases Good Low Temperature Resistance -25 c Physical Strength Excellent Resistances Compression Set Fair Oxidation Poor Tear & Abrasion Resistance Good Ozone & Weathering Poor Resilience Fair Oil Resistance Permeability to Gases Fair *ASTM Oil No. 1 @ 20 c Excellent Electrical Strength Poor @ 100 c Good Flame Resistance Poor *ASTM Oil No. 3 @ 20 c Excellent Water Resistance Fair
CARBOXYLATED NITRILE RUBBER (XNBR) Properties Better tensile properties than NBR Higher continuous service temperature Good chemical resistance Improved tear and abrasion properties than NBR Limitations Not suitable for brake fluids, ketones, strong acids or phosphate esters Poor resistance to ozone and weathering Higher compression set Typical Applications V-belts Shoes Printing rolls
EPDM RUBBER Common Name EPDM @ 100 c Unsatisfactory Chemical Name Ethylene Propylene Diene Monomer Rubber Fuel Resistance *ASTM Fuel B @ 40 c Nomenclature EPDM Solvent Resistance (20 c) Cost Factor 1 Alchohol Good Hardness Range 30-85 Acetone Good Heat Resistance ( c) Unsatisfactory Colours Limited Range Benzene Unsatisfactory Chemical Resistance Maximum Continuous 130 c Acids Good Maximum Intermittent 150 c Bases Good Low Temperature Resistance -50 c Physical Strength Good Resistances Compression Set Good Oxidation Excellent Tear & Abrasion Resistance Good Ozone & Weathering Outstanding Resilience Very Good Oil Resistance Permeability to Gases Fairly Low *ASTM Oil No. 1 @ 20 c Fair Electrical Strength Excellent @ 100 c Unsatisfactory Flame Resistance Poor *ASTM Oil No. 3 @ 20 c Unsatisfactory Water Resistance Excellent
EPDM RUBBER Properties Provides excellent resistance to ozone and weathering Chemically inert good resistance to chemicals Particularly suited to extrusion processes, especially continuous vulcanisation Good insulation properties Limitations Poor tack and adhesion can be difficult to bond Not oil resistant Typical Applications Automotive weather strip Building weather strip General extruded profiles Heating/cooling hose Diaphragms Electrical cable insulation
CHLOROSULFONATED RUBBER (CSM) Common Name CSM @ 100 c Fair Chemical Name Chlorosulphonated Polyethylene Rubber Fuel Resistance *ASTM Fuel B @ 40 c Nomenclature CSM Solvent Resistance (20 c) Poor Cost Factor 3 Alchohol Good Hardness Range 40-85 Acetone Fair Heat Resistance ( c) Colours Full Range Benzene Unsatisfactory Chemical Resistance Maximum Continuous 130 c Acids Very Good Maximum Intermittent 160 c Bases Good Low Temperature Resistance -25 c Physical Strength Good Resistances Compression Set Fair Oxidation Excellent Tear & Abrasion Resistance Ozone & Weathering Outstanding Resilience Fair Oil Resistance Permeability to Gases Low Good *ASTM Oil No. 1 @ 20 c Excellent Electrical Strength Good @ 100 c Good Flame Resistance Good *ASTM Oil No. 3 @ 20 c Excellent Water Resistance Very Good
CHLOROSULFONATED POLYTHENE RUBBER (CSM) Properties Resistant to weathering, oxygen and UV Good high temperature resistance Good oil resistance Limitations Poor fuel resistance Typical Applications Inflatable boats and kayaks Roofing applications
BUTYL (IIR) Common Name Butyl @ 100 c Unsatisfactory Chemical Name Polyisobutylene Rubber Fuel Resistance *ASTM Fuel B @ 40 c Nomenclature IIR Solvent Resistance (20 c) Cost Factor 4 Alchohol Good Unsatisfactory Hardness Range 40-85 Acetone Excellent Heat Resistance ( c) Colours Limited Range Benzene Unsuitable Chemical Resistance Maximum Continuous 120 c Acids Good Maximum Intermittent 135 c Bases Good Low Temperature Resistance -50 c Physical Strength Good Resistances Compression Set Fair to Good Oxidation Very Good Tear & Abrasion Resistance Ozone & Weathering Very Good Resilience Low Oil Resistance Permeability to Gases Low *ASTM Oil No. 1 @ 20 c Fair Electrical Strength Good @ 100 c Unsatisfactory Flame Resistance Poor Fair to Good *ASTM Oil No. 3 @ 20 c Unsatisfactory Water Resistance Excellent
BUTYL (IIR) Properties Impermeable to water and air (acts as barrier) Good flex properties Good physical strength Limitations Poor flame resistance Poor oil resistance Poor compatibility with other polymers low adhesion properties Typical Applications Air-tight seals Bladders in sports balls (football, basketball etc.) Gas masks
CHLOROBUTYL (CIIR) AND BROMOBUTYL (BIIR) Properties Nearly identical to butyl High impermeability Better heat resistance Addition of bromine results in faster curing and better adhesion to unsaturated polymers Limitations Lower resilience Typical Applications O Rings Vaccuum seals and membranes Steam hoses Pharmaceutical closures Tire inner tubes
EPICHLOROHYDRIN (ECO) Common Name Epichlorohydrin @ 100 c 150 c Good Chemical Name Epichlorohydrin Rubber Fuel Resistance *ASTM Fuel B @ 40 c Nomenclature ECO Solvent Resistance (20 c) Cost Factor 4 Alchohol Fair Good Hardness Range 40-85 Acetone Unsuitable Heat Resistance ( c) Colours Limited Range Benzene Unsuitable Chemical Resistance Maximum Continuous 140 c Acids Poor Maximum Intermittent 160 c Bases Fair Low Temperature Resistance -30 c Physical Strength Good Resistances Compression Set Good Oxidation Excellent Tear & Abrasion Resistance Ozone & Weathering Good Resilience Fair Oil Resistance Permeability to Gases Low *ASTM Oil No. 1 @ 20 c Excellent Electrical Strength Poor @ 100 c 150 c Good Flame Resistance Good *ASTM Oil No. 3 @ 20 c Excellent Water Resistance Fair Fair
EPICHLOROHYDRIN (ECO) Properties Excellent resistance to oxidation Good resistance to ozone and weathering Excellent oil resistance Good, stable physical properties over wide temperature range (-50 C to 150 C) Low gas permeability Limitations Poor compression set limits use as sealing material Exhibits corrosive effect on metals (limits bonding applications) Typical Applications Automotive fuel systems Bladders Diaphragms Rollers
ETHYLENE ACRYLIC RUBBER (AEM, AKA VAMAC ) Common Name Vamac @ 100 c Fair Chemical Name Ethylene Acrylic Rubber Fuel Resistance *ASTM Fuel B @ 40 c Nomenclature AEM Solvent Resistance (20 c) Cost Factor 4 Alchohol Fair Hardness Range 45-90 Acetone Fair Heat Resistance ( c) Unsuitable Colours Limited Range Benzene Unsatisfactory Chemical Resistance Maximum Continuous 150 c Acids Fair Maximum Intermittent 180 c Bases Good Low Temperature Resistance -40 c Physical Strength Good Resistances Compression Set Fair Oxidation Excellent Tear & Abrasion Resistance Ozone & Weathering Excellent Resilience Fair Good Oil Resistance Permeability to Gases Very Low *ASTM Oil No. 1 @ 20 c Excellent Electrical Strength Good @ 100 c Excellent Flame Resistance Fair *ASTM Oil No. 3 @ 20 c Excellent Water Resistance Good
ETHYLENE ACRYLIC RUBBER (AEM, AKA VAMAC ) Properties Good low temperature properties (-40 C) Excellent chemical and oil resistance in general Limitations Poor resistance to aromatic hydrocarbons, strong acids and basis Typical Applications Turbo/intercooler Automotive Hoses Dampers Boots Oil Pan/Cam Cover Gaskets
MILLABLE POLYURETHANE (PU) Common Name Polyurethane @ 100 c Good Chemical Name Polyurethane Fuel Resistance *ASTM Fuel B @ 40 c Nomenclature PU Solvent Resistance (20 c) Good Cost Factor 6 Alchohol Unsuitable Hardness Range 40-95 Acetone Unsuitable Heat Resistance ( c) Colours Full Range Benzene Unsuitable Chemical Resistance Maximum Continuous 70 c Acids Unsuitable Maximum Intermittent 80 c Bases Unsuitable Low Temperature Resistance -20 c Physical Strength Excellent Resistances Compression Set Good Oxidation Excellent Tear & Abrasion Resistance Excellent Ozone & Weathering Excellent Resilience Good Oil Resistance Permeability to Gases Low *ASTM Oil No. 1 @ 20 c Good Electrical Strength Excellent @ 100 c Good Flame Resistance Fair *ASTM Oil No. 3 @ 20 c Good Water Resistance Poor
POLYURETHANE (PU) Properties Excellent physical strength Excellent tear and abrasion attributes Limitations Poor high temperature resistance Not suitable for hot water/steam applications or ketones, concentrated acids, hydrocarbons or esters Typical Applications High hydraulic/high-tress/wear applications Coatings Adhesives Print rollers Bumpers Couplers
SILICONE (VMQ) Common Name Silicone @ 100 c Fair Chemical Name Polysiloxane Fuel Resistance *ASTM Fuel B @ 40 c Nomenclature VMQ Solvent Resistance (20 c) Unsuitable Cost Factor 6 Alchohol Good Hardness Range 30-80 Acetone Fair Heat Resistance ( c) Colours Full Range Benzene Unsatisfactory Chemical Resistance Maximum Continuous 205 c Acids Fair Maximum Intermittent 300 c Bases Fair Low Temperature Resistance -60 c (specialist grades - 80 c) Physical Strength Poor Resistances Compression Set Good Oxidation Excellent Tear & Abrasion Resistance Poor Ozone & Weathering Outstanding Resilience Good Oil Resistance Permeability to Gases Fairly Low *ASTM Oil No. 1 @ 20 c Excellent Electrical Strength Excellent @ 100 c Good Flame Resistance Good *ASTM Oil No. 3 @ 20 c Good Water Resistance Good
SILICONE (VMQ) Properties Excellent resistance to oxygen, oil, ozone and weathering Outstanding extreme temperature resistance Flexible and easy to process/shape Good electrical insulation Low chemical reactivity Limitations Poor physical strength Typical Applications Cookware Medical applications Mobile phone/keypad cases
FLUOROSILICONE (FVMQ) Common Name Fluorosilicone @ 100 c Fair Chemical Name Fluorosilicone Rubber Fuel Resistance *ASTM Fuel B @ 40 c Nomenclature FVMQ Solvent Resistance (20 c) Unsuitable Cost Factor 40 Alchohol Good Hardness Range 40-80 Acetone Fair Heat Resistance ( c) Colours Limited Range Benzene Unsatisfactory Chemical Resistance Maximum Continuous 205 c Acids Fair Maximum Intermittent 300 c Bases Fair Low Temperature Resistance -60 c Physical Strength Poor Resistances Compression Set Good Oxidation Excellent Tear & Abrasion Resistance Poor Ozone & Weathering Outstanding Resilience Good Oil Resistance Permeability to Gases Fairly Low *ASTM Oil No. 1 @ 20 c Excellent Electrical Strength Excellent @ 100 c Excellent Flame Resistance Good *ASTM Oil No. 3 @ 20 c Excellent Water Resistance Good
FLUOROSILICONE (FVMQ) Properties Similar to Silicone but with enhanced resistance to hydrocarbon fuels and petroleum oils Excellent stability over extreme temperatures Good flame and water resistance Limitations Poor hot air resistance Poor physical characteristics (tear and abrasion) Typical Applications Static applications Aircraft seals
FLUOROELASTOMER (FKM) Common Name Fluoroelastomer @ 100 c Excellent Chemical Name Fluorocarbon Rubber Fuel Resistance *ASTM Fuel B @ 40 c Nomenclature FKM Solvent Resistance (20 c) Excellent Cost Factor 15 Alchohol Good Hardness Range 50-95 Acetone Unsuitable Heat Resistance ( c) Colours Limited Range Benzene Good Chemical Resistance Maximum Continuous 205 c Acids Excellent Maximum Intermittent 300 c Bases Good Low Temperature Resistance -20 c Physical Strength Good Resistances Compression Set Good Oxidation Outstanding Tear & Abrasion Resistance Ozone & Weathering Outstanding Resilience Fair Good Oil Resistance Permeability to Gases Very Low *ASTM Oil No. 1 @ 20 c Excellent Electrical Strength Good @ 100 c Excellent Flame Resistance Self-extinguishing *ASTM Oil No. 3 @ 20 c Excellent Water Resistance Good
FLUOROELASTOMER (FKM) Properties Excellent chemical resistance Outstanding thermal stability Limitations Restricted low temperature capability Typical Applications O Ring Applications Seals for automotive fuel lines Hydraulic pumps
PERFLUOROELASTOMER (FFKM) Common Name Perfluoroelastomer @ 100 c Good Chemical Name Perfluoroelastomer Fuel Resistance *ASTM Fuel B @ 40 c Nomenclature FFKM Solvent Resistance (20 c) Excellent Cost Factor 30 Alchohol Outstanding Hardness Range 60-95 Acetone Outstanding Heat Resistance ( c) Colours Limited range Benzene Outstanding Chemical Resistance Maximum Continuous 300 c Acids Outstanding Maximum Intermittent 325 c Bases Outstanding Low Temperature Resistance -20 c Physical Strength Poor (at high temp) Resistances Compression Set Fair Oxidation Excellent Tear & Abrasion Resistance Ozone & Weathering Excellent Resilience Fair Poor Oil Resistance Permeability to Gases Fairly Low *ASTM Oil No. 1 @ 20 c Excellent Electrical Strength Good @ 100 c Good Flame Resistance Self-extinguishing *ASTM Oil No. 3 @ 20 c Excellent Water Resistance Good
PERFLUOROELASTOMER (FFKM) Properties Exceptional chemical resistance in harsh conditions Thermal stability from -25 C to 320 C Ultimate in sealing performance Limitations Poor compression set Can be difficult to process Typical Applications Semiconductor Chemical Petroleum O Ring applications
HYDROGENATED NITRILE RUBBER (HNBR) Common Name HNBR @ 100 c Fair Chemical Name Hydrogenated Nitrile Rubber Fuel Resistance *ASTM Fuel B @ 40 c Nomenclature HNBR Solvent Resistance (20 c) Good Cost Factor 8 Alchohol Excellent Hardness Range 50-95 Acetone Good Heat Resistance ( c) Colours Limited Range Benzene Fair Chemical Resistance Maximum Continuous 125 c Acids Good Maximum Intermittent 160 c Bases Good Low Temperature Resistance -30 c Physical Strength Good Resistances Compression Set Good Oxidation Excellent Tear & Abrasion Resistance Ozone & Weathering Very Good Resilience Fair Oil Resistance Permeability to Gases Low *ASTM Oil No. 1 @ 20 c Excellent Electrical Strength Poor @ 100 c Excellent Flame Resistance Poor Very Good *ASTM Oil No. 3 @ 20 c Fair Water Resistance Very Good
HYDROGENATED NITRILE RUBBER (HNBR) Properties Superior to basic NBR Excellent physical strength and retention of properties after long-term exposure to heat, oil and chemicals Good ozone and water resistance Can be compounded to allow broad temperature range (from -30 C to 160 C) Limitations Low tensile properties Not recommended for use with ketones, esters/ethers and aromatic fuels Typical Applications Automotive seals and hoses Oil field packers Timing belts Engine grommets
AFLAS (FEPM) Common Name Aflas @ 100 c Excellent Chemical Name Propylene Tetrafluoroethylene Fuel Resistance *ASTM Fuel B @ 40 c Nomenclature FEPM Solvent Resistance (20 c) Excellent Cost Factor 12 Alchohol Poor Hardness Range 50-90 Acetone Poor Heat Resistance ( c) Colours Limited Range Benzene Poor Chemical Resistance Maximum Continuous 205 c Acids Excellent Maximum Intermittent 230 c Bases Excellent Low Temperature Resistance -20 c Physical Strength Fair Resistances Compression Set Poor (at high temp) Oxidation Good Tear & Abrasion Resistance Ozone & Weathering Excellent Resilience Fair Oil Resistance Permeability to Gases Low Good *ASTM Oil No. 1 @ 20 c Excellent Electrical Strength Excellent @ 100 c Excellent Flame Resistance Poor *ASTM Oil No. 3 @ 20 c Excellent Water Resistance Good
AFLAS (FEPM) Properties Excellent heat resistance with continuous service temperature capability of 230 C Excellent chemical resistance including resistance to strong acids and bases Excellent oil resistance Excellent steam resistance High electrical resistivity Limitations Poor resistance to polar solvents and aromatic fuels Compression set performance may be too high for certain applications Typical Applications Seals/Gaskets/ O Rings for Oil & Gas applications
SELECTION Unbiased and Impartial Advice We offer the full range of heat curable elastomers Our Technologists have wide experience of both compounding and processing We can provide objective advice as to the most suitable compound to use for a particular environment
DEVELOPMENT Compound Development Full Technical assessment of requirements Vast database of formulations to choose from Prototyping service and process review Laboratory facilities for mixing and testing of sample batches
DEVELOPMENT Projects and Quotations Non-Disclosure Agreement Exclusivity of Formulations if required Formal quotations can be provided within 24 hours where a quick answer is essential
Rheology, Hardness and S.G. tests as standard on all compounds TESTING Basic Physical Testing Full physical property testing provided where necessary
TESTING Fully Equipped Laboratory Highly trained staff operating in a up to date laboratory incorporating the latest equipment Full physical testing facilities including certification services for all Clwyd products ISO 9001 2008 accredited Analytical equipment includes: Thermal Gravimetric Analyser (TGA) Fourier Transform Infrared Spectroscopy (FTIR) Differential Scanning Calorimeter (DSC)
Basic Physical Properties Hardness, Specific Gravity (S.G.), Rheology, Modulus, Compression Set, Tensile, Elongation at Break and Mooney Viscosity Thermogravimetrical Analysis (TGA) Fourier Transform Infrared Spectroscopy (FTIR) TESTING Range of Laboratory Facilities Oil Testing ASTM and Other Fuels Ozone Testing Low Temperature Brittleness and Torsion Testing Gehman Test Corrosion Heat Ageing High Temperature Fluid Testing O Ring Testing to AMS 25988/DTD5616 (FVMQ) Colour Spectrophotometer for Colour Matching All Testing is Certified to Recognised International Standards
TESTING Examples of Standards and Specifications Aerospace (ABR, SAE) BS (British Standard) ISO (International Standards Organisation) DTD ASTM D2000 Line Call-Outs SQR Def Stan
3700 sq/m Manufacturing Facility with dedicated warehouse, weighing stations, mills and banbury mixers MANUFACTURE Manufacturing Facility Silicone Building with cleanroom conditions for specialist mixes Process Laboratory equipped with Banbury mixer, Mills, Moulding Presses and full range of rubber product testing
Banbury mixers for larger quantities Open mill mixing for smaller quantities Barwell blank finishing option MANUFACTURE Mixing and Production Facilities Prodicon and Merkle stripping capabilities 1kg laboratory batches available
Clean room facilities for high-grade compounds MANUFACTURE Dedicated Silicone and FFKM Mixing Plant Perfluoroelastomer (FFKM) and Fluorosilicone (FVMQ) mixes available
Quality Management System (ISO 9001:2008 for design, development and manufacture) provides full lot traceability and retains Weighments Data Mixing profiles Rheology data All other testing data MANUFACTURING Traceability Example of Rheology Curve
Some of our markets include: Oil & Gas Aerospace Pharmaceutical Marine/Offshore M.O.D. Specialist Automotive OUR MARKETS Other markets include: Printing, Food and Dairy Processing, Fabrications and Satellite Technology
Back to Markets OIL & GAS Typical compounds used for this sector include NBR, HNBR and FKM Used for their excellent resistance to oil and ability to withstand high pressures OUR MARKETS Oil & Gas and Aerospace AEROSPACE Typical compounds used in this sector include HNBR, FFKM and Fluorosilicone Used for their ability to withstand extreme temperatures and excellence resistance to oils
Back to Markets OUR MARKETS Pharmaceutical and Marine/Offshore PHARMACEUTICAL Typical compounds used for this sector include Butyl, PU and Silicone Used for their excellent low gas permeability (butyl), excellent physical strength and biocompatibility (PU) and chemical inertia (Silicone) MARINE/OFFSHORE Typical compounds used in this sector include EPDM, Butyl and FKM Used for their excellent water resistance, sealing capabilities and thermal stability over extreme temperatures (FKM)
Back to Markets MoD Typical compounds used for this sector include NR, SBR, Butyl, and FKM Used for their excellent physical properties (NR/SBR), low gas permeability (butyl), and excellent oil and chemical resistance (FKM) OUR MARKETS MoD and Specialist Automotive SPECIALIST AUTOMOTIVE Typical compounds used in this sector include NR, SBR, EPDM and FKM Used for their excellent physical properties, sealing capabilities and outstanding chemical resistance (FKM)
REACH (EU No. 1907/2006) Confirmation that no CCL formulations include Substances of Very High Concern (SVHCs) in amounts exceeding 0.1% w/w in accord with REACH Regulations EU No. 1907/2006 Assurances from our suppliers that all raw materials will be registered under REACH in the appropriate deadlines Article 32 Duty of care SDS Information Sheets available on request
LOCATION AND CONTACTS Tel 01978 810551 Fax 01978 810740 Sales Manager Kevin Watton (kw@clwydcompounders.com) Mobile 07968 035063 Customer Services Adrian Rogers (ar@clwydcompounders.com) Richard Williams (rw@clwydcompounders.com)