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Frequently Asked Questions
Below are some of the most common questions we hear on a daily basis, however if you have a query that isn’t covered below, then please do not hesitate to contact us on 0844 980 1665, or email us at enquiries@bollards.co.uk
Materials
What types of materials are bollards available in?Cast iron, ductile iron, cast aluminium, mild steel, polyurethane, concrete, stainless steel, recycled plastic and timber.
Which of the above materials would you recommend in certain locations?Cast iron - pedestrian areas, shopping areas. Ductile iron - road side, shop fronts, anti-ram situations. Duracast polyurethane - waterside locations, access points (removable low weight), pedestrian areas. Concrete - low budget projects, pedestrian areas. Mild steel - shopping centres, industrial sites, car parks. Stainless steel - modern developments. Recycled plastic - low budget projects. Timber - conservation areas, car parks. Cast aluminium - access points (removable low weight)
What grades of stainless steel do you offer?Grade 304 and Grade 316 (316 has a higher chrome content).
When would you recommend grade 316?Grade 316 may be used on marine or waterfront environments.
What are the different finishes for stainless steel?Bead blasted to various grades (satin), mirror polish, high polish.
What is the difference between ductile and cast iron?Cast iron is brittle, ductile iron contains magnesium and copper which changes the properties of the bollard - the bollard will bend rather than snap or shatter on impact.
Is ductile iron more expensive that cast iron?Ductile iron is 35% more expensive.
Fixings
What are the different types of fixing options?Root fixed, base plated, removable, telescopic, fold down.
In which situation would each fixing be used?
- Root fixed - Used in anti-ram situations - provides solid permanent fixing.
- Base plated - May be used where a concrete base already exists. Often used where excavation is not possible due to underground services.
- Telescopic - Allows periodic access without requirement for storage when access is required. May be supplied with lift assist to reduce lifting weight.
- Removable - Allows periodic access but requires storage when not in use - additional ground fixing socket may be supplied.
Cast iron - integrally cast onto bollard during manufacture. PU - usually cast separately and fixed to the bollard by means of an adhesive or drilling and tapping. Mild steel - drilled and tapped, lasercut. Stainless steel - lasercut, shotblasted onto bollard or separate logo attached by drilling and screwing. Timber - routed, drilled and screwed. Aluminium - cast integrally, acid etched, drilled and tapped.
Do you recycle any materials?All cast and ductile iron is recycled.
Does cast iron rust?Cast iron will rust if not maintained - i.e. if the paint is chipped leaving the surface of the bollard exposed.
What is the average weight and height of our bollards?Many different sizes but on average the following apply: Ductile/Cast iron - 45kg/985mm PU - 22kg/985mm Concrete - 90kg/450mm or 220kg/900mm Mild steel - 25kg/900mm Stainless steel - 20kg/1000mm Bespoke bollards may also be manufactured upon request.
What is the maximum diameter you would recommend for a fold down bollard?100mm
How does a ground socket work on a removable bollard?A steel socket with a hinged lid (sockets approx. 200mm deep) is concreted into the ground. When the bollard is in use, the hinged lid locates on a lug on the bollard and a padlock secures the bollard to the socket. When the bollard is removed the lid fits flush and covers the socket.
How may a removable bollard be stored?Additional sockets may be utilised to store bollards.
Finishes and Extras
What standard finishes are available for our range of bollards?Cast/Ductile iron - primer undercoat + 2 pack acrylic topcoat in a standard RAL or BS colour + optional waterside paint spec. Mild steel - Galvanized to BS EN ISO 1461:1999 and powder coated in a standard RAL or BS colour. Concrete - Exposed aggregates of various types (Derbyshire, Ouse Valley) or smooth surface (smooth grey/white). Timber - Hardwood - usually treated with a Sadolin finish stain, a translucent varnish or simply supplied naturally. Timber - Softwood - These types of timber are Tanalised which is a method of pressure treating the timber with a liquid preservative. PU - Material is pigmented throughout in a base colour and primer undercoat + 2 pack acrylic topcoat in a standard RAL or BS colour. Aluminium - primer undercoat + 2 pack acrylic topcoat in a standard RAL or BS colour.
What colours are available?Standard range and any RAL/BS colour (non standard colours may include a surcharge especially if powder coated).
What banding/highlighting options are available for both cast iron and mild steel bollards?Reflective bands self adhesive class 1 & 2, 25mm, 50mm, 75mm wide Ballotini Ring (glass beads suspended in a coloured compound) Reflective Paint Ardenbrite No. 1 gold highlighting.
