Engineering Plastics Pty Ltd
Dear Potential Customer:
Thank you, for allowing the opportunity to introduce our company to you. Engineering Plastics Pty Ltd is a family owned company, established in 1972. We have specialised over the years in the manufacturing of Polyurethane elastomeric products. We have expanded our versatility by introducing new product lines and services. These include a variety of Structural (hard) Plastics; Commercial Grade Elastomers (Rubbers) and Industrial Composite materials.
We have worked Screenex Australia for many years, helped with the design of many screen locking systems and well assisted with development solving problems with the screens to get the best screening possible, since the sale of Screenex to Schenck Australia who are a direct competitor we are now developing our structure to work with new clients on developments and problem solving across the wide area of product we produce. Engineering Plastics was the driving force and expertise in polyurethanes and some rubber products for Screenex.
We are offering our expertise and experience should you have any requirement or problems for better screening solutions. We will visit you on your request to see if we can help you or see what your requirements are for all screening products. We work with many other companies in the screening supplies with excellent results when we receive the correct information. This is the reason we have decided to come direct to the coal face to make sure we have that information in hand to give you the best possible options.
Our versatility in being able to supply one or many thousand parts has allowed us to service Australian industries across: Agricultural; Automotive; Australian defence; Industrial manufacturing and processing; Mining; Materials handling; Food processing; Printing; Timber; Paper and cardboard manufacturing; Rail and road transport and many more. Clients such as GMH; FORD; TOYOTA; ALDI; Various Power Generation and Coal and Mineral Mining Companies; AMCOR; Carter Holt Harvey; VISYPAK: SOUTHCORP and many more.
Our customer base and their diverse product requirement are of testimony to our extensive ability to engineer solutions to your polymer requirements. Our company name says it all, Engineering Plastics Pty Ltd.
Have a look at the detailed information below. We know It will be of use and we look forward to your enquiry.
General Product Information
ELASTOMERS
| Product | Characteristics | Typical application | Stock Shapes |
|---|---|---|---|
| P’urethane Thermosetting Elastomers in hardness ranging from 10 Shore A to 80Shore DSeveral hundred grades are available. Each offering specific benefitsYour service conditions will help us determine the best compound |
Best considered as a bridge between rubber and structural plastics combining such desirable properties as resilience; high load bearing capacity; resistance to abrasion, impact and compression set; degradation by oxygen, ozone and oil. Readily moulded into many shapes or bonded to most hard surfaces. | Bearing Pads, Bushes, Forklift Wheels, Castor/Trolley wheels, Conveyor pulleys and rollers, Idlers, Wear Pads and Scrappers, Valve Body lining, Gaskets and Seals, Die Strippers, Buffer or Mounting Pads, Printing rollers, Timber handling ‘J’ bars, Cyclone liners, Pipe pigs, Screen Decks, Trommel Screens, Chute liners, Floatation Cell Agitators | Rods Tubes SheetCustom Mouldings and Machined parts Extruded Cord |
| Natural Rubber NR | Temp. working range | Drive Rollers, Automotive | Sheet |
| -50 to +70 degC Hardness Range: – 30 to 90Shore A Strength: – High 2500/3500lb/sq.in. High resilience:- 60/80% Abrasion resist.:- High 80cu mm Resistant in non-mineral fluids Poor resistance to ageing and Weathering, Not resistant mineral oils and Hydrocarbon fuels |
brake seals, Castor-based hydraulic fluids, Gaskets, Valve lining Skirting strips Generally used in low temperature (remains flexible to-55deg C) and low to medium stress applications |
Extrusion, Compression Moulding. |
|
| Styrene-butadiene SBR (Buna-S) |
Temp. working range -50 to +100 degC Hardness Range: – 30 to 90Shore A Strength: – Med. 1500/2500lb/sq.in. High resilience:- 40/60 % Abrasion resist.:- Med.120cu mm Resistant in non-mineral fluids Medium resistance to ageing and Weathering, Not resistant mineral oils and Hydrocarbon fuels |
A Synthetic rubber comparable alternative to NR but slightly reduce physical properties. Mainly used in non-mechanical high volume products Foot wear Tyres, Skirting strips |
Some Sheet Custom Moulding |
| Acrylonitrile-Butadiene NBR (Nitrile, Buna-N) |
Temp. working range -40 to +120 degC Hardness Range: – 40 to 90Shore A Strength: – Med. 1500/2500lb/sq.in. High resilience:- 40/60 % Abrasion resist.:- Med.120cu mm Resistant mineral fluids, water, hydrocarbon fuels Medium resistance to ageing and weathering Not resistant to non-mineral automotive brake fluids |
Nitrile’s general good physical properties and mineral oil resistance. Excellent for hydraulic seals, gaskets, automotive components, rollers | Sheet ,extruded profiles Custom mouldings |
| IsHydrogenated Acrylonitrile B’diene (High-nitrile) H-NBR |
HelenSimilar to standard nitrile with improved temp. working range -30 to 150deg C and slightly improved abrasion, hot water, steam and chemical resistance |
Refrigerant gas seals /gaskets hydraulic seals at Price between NBR and Viton | ‘O’ rings, Custom moulding |
| Polychloroprene CR (Neoprene) |
Temp. working range -30 to +90 degC Hardness Range: – 40 to 90Shore A Strength: – Med. 1500/2500lb/sq.in. High resilience:- 40/60 % Abrasion resist.:- Med.110cu mm Moderate Resistance to mineral oils/grease, water, Very good resistance to ageing and weathering Not resistant to non-mineral automotive brake fluids and hydrocarbon fuels |
Outdoor seals, gaskets, rollers with moderate exposure to mineral oils/greases | Custom Moulding and Extrusion, Sheet |
| Chlorosulphonated Polyethylene CSM (Hypalon) |
Some time referred to as ‘Super- Neoprene’. Similar physical properties to CR but with much improve Temp.range-30to+120 degC excellent resistance to ozone and weathering, good resistance to mineral oils/greases and acids Not resistant Hydrocarbon fuels |
Situations involving heavy/harsh weather condition or exposure to hot liquids and gases Rollers, conveyor pulleys gaskets, valve lining |
Custom Moulding and Extrusion, |
| Ethylene-propylene EPDM | Temp. working range -50 to +150 degC Hardness Range: – 45 to 85Shore A Strength: – Med. 1500/2500lb/sq.in. High resilience:- 40/60 % Abrasion resist.:- Med.110cu mm Very good resistance to ageing and weathering ,water/steam, most water based chemicals, non-mineral oils, automotive brake fluids, phosphate ester fluids Not resistant to Mineral oils and hydrocarbon fuels |
Originally developed for automotive tyres but became more widely used for components in wet, high/low temp. Applications. Conveyor Rollers, Valve lining weather strip, outdoor glazing seals |
Custom Moulding and Extrusion, Sheet |
| Fluoroelastomer FKM (Viton, Fluorel, Technoflon) |
Temp. working range -40 to +220 degC Hardness Range: – 45 to 90Shore A Strength: – Med. 1500/2500lb/sq.in. Resilience:- 20/40 % Abrasion resist.:- Med.150cu mm Excellent Resistance to ageing, weather, mineral oils, hydrocarbon fuels and many chemicals, even at high temp. Not resistant to ketones, alcohols and acids |
The ultimate material for resistance to hostile chemical and oil environment at normal to elevated temp. But limited flexibility at temp. below -20deg C. Expensive as a material. Hydraulic seals, gaskets |
Custom Moulding and Extrusion, Sheet |
| Silicone MQ | Temp. working range -70 to +220 degC Hardness Range: – 20 to 90Shore A Strength: – poor. 500/1000lb/sq.in. High resilience:- 40/60 % Abrasion resist.:- poor.200cu mm Resistant to ageing,/weathering, mineral oil, alkalis Non Resistant to high temp water/steam, automotive brake fluid, acids, hydrocarbon fuels. Low toxicity |
A wide temp. Working range and good resistance to weathering, excellent electrical property, low toxicity allows this rubber great versatility of application for seals, gaskets, moulding used in electrical insulation. Limitations:- Poor abrasive and tear resistance Relatively expensive rubber. Suitable in Food and Pharmaceutical Industries |
Custom Moulding and Extrusion, Sheet |
| Perfluoroelastomer FFKM (Kalrez, Chemraz ) |
Working Temp Range -50 to350deg C Strength 2200 to 2500 lb/sq in Excellent all round resistance to acids, alkalis, ketones, esters, amines, oils, steam, solvents (Similar to Teflon but elastomeric |
Suitable for chemical processing, refineries, pharmaceutical, semi-conductors, instrument, paint/adhesive and oil/gas industries, mechanical seals gaskets Limitations; Very expensive and limited raw material availability |
Commercial size ‘O’ rings and mouldings Made to order only |
Structural Plastics
| Product | Characteristics | Typical application | Stock Shapes |
|---|---|---|---|
| Nylon 6 (PA6) | General purpose structural grade Polyamide (Nylon) Shows great toughness and resilience under impact or at low temperature | Gears, Belt rollers, Bushes, Trolley Wheels | Rod , Sheet Machined Parts Moulded Parts (in volume application) |
| Nylon 6.6 (PA66) | Nylon 66 has higher melting point, higher hardness, better mechanical properties and lower moisture absorption when compared to Nylon 6 |
Gears, Bushes, Trolley Wheels, Highly stressed bearings or component | Rod Same Sheet Machined Parts |
| Oilon ( PA6G) | General purpose self lubricating cast polyamide (nylon) as per Nylon 6 but oil filled for greatly reduced co-efficient of friction. Resulting in reduced noise and heat build up. Improves bearing life up to five times when compared to nylon 6 | Gears, High speed or high load Bushes and Roller, Thrust washers Highly stressed bearings or component Suitable in Food and Pharmaceutical Industries |
Rod Hollow Bar (Tube) Sheet Machined Parts |
| MolyNylon (PA6MS) MoS2 impregnated |
Cast Moly-disulphide filled polyamide(nylon) Exhibits similar characteristics as Oilon but uses Molybdenum disulphide as dry lubricating agent | Gears, High speed and high load bushes and rollers, Highly stressed bearings or component Thrust washers. Suitable in Food and Pharmaceutical Industries |
Rod Hollow bar (Tube) Sheet Machined Parts |
| Hylube Nylon (PA6H) Monomer cast nylon impregnated with compound solid Lubricants |
Hylube –Contains compound solid lubricants developed for heavy load and highly stressed application with a reduced co-efficient of friction as low as 0.08 ( on polish steel test) |
Gears, High speed and high load bushes and rollers, Thrust washers. Highly stressed bearings or component Suitable in Food and Pharmaceutical |
Rod Hollow bar (Tube) Sheet Machined Parts |
| Poly-ethylene UHMWPE PE1000 HMWPE PE500 HDPE PE300 |
High impact resistant, Low co-efficient of friction, Good abrasion resistant, Very low moisture absorption(water repellent), Hot weldable for easy fabrication, Excellent chemical resistance to concentrated acid and alkalis, Working Temp. -253deg C to +80deg C, Excellent electrical properties, Non Toxic |
Chute and Hopper lining, Valve and pump components, Under water Bearings, Spray nozzles, Guide rails, Impact plates, Pulleys, Gears, Textile machinery, Gaskets. Star wheels and Bottle Screws | Rod Sheet Machined Parts Profiles |
| Poly acetal (P.O.M.-C) | Acetal is a copolymer crystalline material with low moisture absorption, good creep resistance and impact resistance, with excellent strength and stiffness. Excellent for components working in wet environments Melting point 165 degrees C. |
Insulating electrical components. Spray nozzles Gears ,Cam wheels, Bearings, Bushes, Rollers, Dimensionally stable engineered parts Suitable in Food and Pharmaceutical Industries |
Rod Sheet Machined Parts |
| ‘Delrin’ Acetal (P.O.M -H) |
‘Delrin’ Acetal Homopolymer similar characteristic to copolymer but with slightly improved mechanical properties and machinability but slightly inferior in hot water and alkalies resistances |
Gears ,Cam wheels, Bearings, Bushes, Rollers, Dimensionally stable engineered parts Suitable in Food and Pharmaceutical Industries |
Rod Sheet Machined Parts |
| Polycarbonate (PC) | Excellent Impact resistance, Good transparency Very good mechanical properties Self -extinguishing |
Machine guards Cabinet doors Safety Glazing Writing stencil Sight glasses |
Sheet Rod Tube |
| PETP & PETP-TX self lub. Polyethylene tereophtalate |
High mechanical strength, handness and stiffness. Very good creep resistance, dimensional stability, Excellent wear resistance, Low Co-efficient of friction. TX more so temp working range -20 to110deg C water absorption –very low but becomes brittle when used in hot water above 70degC |
Precision gear sand cams Bearing and bushes requiring tight tolerances And high load. Thrust washers, Slide ways, Pump components, Electrical insulating components |
Sheet Rod Tube Machined Parts |
| Poly-Acrylic PMMA Polymethylmethacrylate |
Good transparency, good impact resistance and half the weight when compared to glass, though Poor abrasion resistance, good resistance to weathering. Easily formed |
Glazing, Signs and displays. Light diffusers, Skylights. Boat windscreens, Cost effective | Rod Tube Sheet clear and coloured ,opal prismatic for light diffusers |
| Polyvinyl Chloride PVC | Excellent electrical properties Good chemical resistance Solvent cementable Low cost |
Chemical tanks and lining Air ducts, Spacers, Insulators, Cabinets, Printing Stencils |
Sheet Film Rod Machined Parts |
| Poly propylene PPE | Excellent chemical resistance Easily welded Good dimensional stability |
Ducts and hoods Cutting boards, Tank liners Valve components, Seats and seals, Food Industries |
Sheet Rod Machined Parts |
| PPS | Very High Performance Thermoplastic:- High strength and toughness, High abrasion resistant, Resistant to a wide range of organic and inorganic chemicals (except conc. sulphuric acid) and radiation Working temp. to +250degC (Low hydrolysis (no affect after 1000hrs exposure to pressurised water at 250degC), Low Toxicity and acidic gases during combustion |
Bushes, Bearings, Seals and Seats Valve and pump components Electrical components Nuclear and medical industry components, Microwave elements, |
Rod Tube Machined Parts |
| Tuffclad | SEE PA6G –PA6MS | ||
| Polytetrafluoroethylene PTFE- V ‘Teflon’(virgin) |
Sintered fluorinated polymer exhibiting:- Extremely high chemical resistance, very low co-efficient of friction(0.06 on polish steel), Anti-adhesion, Excellent dielectric performance Working Temp.-260 to +260 degC Low moisture absorption, Low compressive modulus but can be improve with addition fillers, Non Toxic in virgin state |
Gasket, Bushes, Slide bears. Valve and pump seals/seats, Chute and hopper lining, Insulators, Extrusion nozzles ‘O’ rings, Piston rings, Thrust washers Dough rollers Food and Pharmaceutical industry components |
Rod Tubes Sheet Films Machined parts Woven Clothes |
| PTFE-15G Teflon 15% glass filled |
As Above with improved compressive strength, Improved wear resistance, Slightly reduced frictional properties, Lower thermal expansion |
As above | Rod Tubes Machined parts |
| PTFE-25G Teflon 25% glass filled |
As Above with improved compressive strength, and better wear resistance, Slightly reduced frictional properties Lower thermal expansion | As above | Rod Tubes Machined parts |
| PTFE-60B Teflon 60% bronze filled |
As Above with more improvement to compressive strength, Slightly reduced frictional properties Lower thermal expansion | This compound has excellent Bearing performance at high speeds and thermal conductive |
Rod Tubes Machined parts |
| PTFE-55B-5M Teflon bronze-moly |
As Above with more improved compressive strength, Slightly better frictional properties than with other fillers Lower thermal expansion | As per PTFE-60B with frictional values | Rod Tubes Machined parts |
| PTFE-C Teflon Carbon filled |
As Above with improved compressive strength and good frictional properties Lower thermal expansion |
Excellent chemical resistance with similar mechanical properties to glass filled grades but much better slide characteristics at very high velocities | Rod Tubes Machined parts |
| ABS | |||
| Bakelite | |||
| Fibre Glass and Composites moulding |
