Polymer Performance - W.Mannering (London) Ltd
Polymer Performance Of Different Rubber Compounds.
Temp Range: -40 °C to +75°C (+100°C intermittently)
Strengths: High tensile strength with good resistance to abrasion, tear & fatigue.
Weaknesses: Susceptible to attack by ozone, poor resistance to mineral & ~ petroleum based oils.
Temp Range: -30°C to +110°C (125°C intermittently)
Strengths: Good ageing, abrasion & weather resistance with some resistance to petroleum-based oils lend themselves to low flammability applications.
Weaknesses: Poor electrical properties, not resistant to ester lubricants & poor resistance to chemicals.
Temp Range: -60°C to +200°C (250°C intermittently)
Strengths: Outstanding ozone & weather resistance, good electrical properties, good temperature-range.
Weaknesses: Poor resistance to petroleum based fluids, has a tendency to creep.
Temp Range: -45°C to +120°C
Strengths:Outstanding resistance to ozone. Light ageing, oxidative & heat ageing & many inorganic and organic chemicals, good low temperature behaviour.
Weaknesses:Poor resistance to petroleum-based fluids.
Temp Range:-30°C to +110°C (150°C intermittently)
Strengths:Excellent fuel and oil resistnce
Weaknesses:Poor ozone and low temp performance, but these can be amended by the addition of plasticizers.
Temp Range:-20°C to +200°C (275°C intermittently)
Strengths:Excellent resistance to heat, oil , ozone, weather and chemical attack.
Weaknesses:Only fair low temp performance.
We can supply virtually any size of metric/imperial O ring in any material, I.E. Nitrile, Neoprene, Silcone, EPDM, Viton, Kalrez, ptfe & Encapsulated O Rings, these include any UK, American, European & Japanese sizes.
O ring Kits/Cord also supplied, spliced/butt joined O Rings can be supplied for non-standard sizes.
Flexible or rigid, and dual hardness extrusions, in coil form or cut to length, we offer many polymer types: PVC, polypropylene, Acrylic, EVA, TPE, TPR 7 Nylon etc, we have many standard existing dies (chanel strips, L, T, tubes & nylonstudding etc) if we do not have existing tooling we can supply custom Extrusions to your exact specifications.
We have moulds for many standard parts, ie grommets, door stops, seat buffers, self adhesive Buffers/ Bumpers, Caps, Ferrules, Feet, Tube End Fittings, Plugs, Hand Grips, Shrouds, Sleeves, Suction Pads, Vent plugs & many nylon parts etc.
Custom mouldings can be made to your exact specifications together with assistance in design & suitable polymers, we can offer a range of polymers including EVA, LDPE, HDPE, PVC, Polypropylene, Acrylic, Acetal, Nylon, Polyurethane & TPR etc.
Rod Sheet, Strip, Block, and tube form etc materials include ABS, Acetal, Acrylic, Delrin, HDPE, Cast Nylon, Nylon6, 66, 66.6, PTFE (Teflon), PVC, Polypropylene, polycarbonate & polyethylene.