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Engineering Plastics
DEMS represents world renowned products, and our basket of Engineering plastics include brands such as Tufnol,
Vesconite, Nylacast nylons, Perspex, Keylon PTFE's and Wefapress polyethylene's. These products are all supplied cut
to size, in rod, tube and sheet form, or your components can be designed and machined by our well-equipped and
qualified engineering works.
DEMS
- Is the foremost supplier of engineering plastics in KwaZulu-Natal
- Has established a sales and distribution facility in Gauteng
- Stocks an extensive range of thermoplastics as well as thermoset plastics
- Offers professional advice on product selection
- Produce technical drawings and production specifications
- Cut to size
- Machine various materials to full finished components
- Injection, compression, or roto-mould items to customer requirements
- Over 50 years experience in engineering plastics
Product Range
A B S
- Sheet only
- Low cost
- Signage material
ACETAL/POM
- Very good dimensional stability & sliding properties.
- High Rigidity & Hardness . Very easy to machine
- Good Impact resistance at low temperatures
- Very low moisture absorption (0.8% at saturation)
- Good creep resistance
- Food Safe
- Colours : Natural & Black.
Applications
Bearings, Cams, Gears, Conveyor Rollers, Gear Wheels, Precision machined components
HDPE / UHMWPE
- Very good chemical resistance
- Excellent abrasion resistance
- Superior impact strength and shock resistance
- Operates at temperatures as low as -200°C.
- Very Low Friction Coefficient
- Low Specific gravity
- Easy to Machine
- Widely used in conveyors, bottling and packaging machines
- Virgin material is Food Safe
- Very low moisture absorption (0.8% at saturation)
NYLON
- Good Mechanical Stability
- High Impact Strength & shock resistance
- Very good abrasion resistance
- High Tensile stress & compressive strength
- Good Damping Properties
- Self Lubricating
- Colours : Natural & Black.
Weakness
Material is Hydroscopic. Moisture Absorption will mean Mechanical features & Dimensions will change .
Typical Applications
General purpose material, Washers, Bushes, Spacers, Guides , Wheels,
PERSPEX/ACRYLIC
- Exceptional light transmission with virtually no colour bias – even in thick blocks
- Excellent resistance to outdoor weathering
- Good resistance to impact
- A high gloss, hard surface
- High tensile strength and rigidity
- Easily thermoformable with simple workshop tools
- Easy to clean
- Capable of being fully recycled
Applications
Architecture, Construction, Furniture design, Automotive and transportation, Visual communication and
retail, Lighting, Electronics and energy, medical, health and safety
POLYCARBONATE
- High Impact Resistance
- Good Dimensional Stability
- Low Moisture absorption
- Physiologically Inert if natural grade
- Colour : Transparent
Applications
Machine covers and guards
POLYPROP
- Light weight
- Excellent resistance to stress and cracking
- Chemical resistant
- Low moisture intake
Applications
Wear pads, pumps and machine cases
POLYURETHANE
- Sheet, rod and tube
- Plus moulded items (various colours)
- Poly-urethane is an excellent alternative to rubber for wear and chemical resistance.
P T F E / TEFLON
- Excellent Chemical Resistance
- Very low Friction Coefficient
- Physiologically safe (Food Safe)
- Low Flammability
- Operating Temperature – 200Deg C to + 260 Deg C
- Very good UV Resistance
- Colour : Natural
Applications
Seals, Valve Seats, Bearing Pads , High Temp components in Food processing. None Stick Applications
PULTRUSIONS
- Pultruded fibre-glass profiles in continuous lengths
- For high strength
- Electrical insulation items
Pultruded fibre-glass profiles in continuous lengths, for high strength, electrical insulation items.
P V C
- Excellent Chemical resistance
- Good mechanical & tensile strength
- Good dielectric properties
- Can be Welded & Fabricated
- Easy to Machine with Conventional tooling
- Widely used for components in the Chemical Industry
- Operating Temperature -15Deg C to +60Deg
- Colour : Grey
Applications
Widely used for mechanical components in the Chemical Industry
Tufnol
Phenolics
- Water resistant
- Low friction characteristics
- High strength and stiffness
- High temperature range
- Non softening at elevated temperatures
Applications
Gears, bushes, rollers, marine applications
View our Engineering Plastics RangeDownload Brochure
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DEMS GARTECH FOR
ALL YOUR ENGINEERING
PLASTICS REQUIREMENTS
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