Aluminium is a light metal that resists oxidisation. 3e60 uses cold-extruded profiles in aluminium alloy EN AW-6060 (in compliance with the relevant European standards) which are then painted with non-toxic epoxy powders. Among the numerous advantages that this type of metal offers, its lightness is particularly worthy of note, as in volume terms aluminium weighs only one third as much as steel. Aluminium produces considerable weight savings in nearly every type of mechanical application. Besides this, the metal is highly appreciated for the ease with which it can be recycled, allowing greater protection of environmental resources, a subject that 3e60 holds particularly close to its heart. Nearly one third of the aluminium consumed in the world today is produced from recycled scrap.
 

The lumber uses, whether square or round, comes mostly from certified forests, the majority of which are situated in the north of Sweden. The wood is processed directly in our plant, using vacuum pressure impregnation techniques in an autoclave, only once all other operations (e.g. the cutting or working of the piece) have been completed. Only in this way, in fact, will the treatment with water-soluble salts be homogenously impregnated throughout the material, thus ensuring (thanks also in part to the high-quality products we use) that it is extremely resistant to aggressive climate and/or parasite effects, while preserving its qualities over long periods. Impregnation is carried out in accordance with the relevant European standard, UNI EN 351-1.

Decorative HPLs with melamine surfaces are supplied in the form of panels. HPLs essentially consist of paper and thermosetting synthetic resins; the paper represents more than 60% of the product, while the remaining 30-40% consists of polymerised melamine resin for the decorative surface layer and of polymerised phenolic resin for the underlying layer. During the process of polymerization in high pressure and temperature conditions, three-dimensional chemical bonds are formed that result in a stable, non-reactive material with characteristics that are completely different from those of the individual raw materials. 
3e60 uses this material in particular on account of its high resistance to scratching and atmospheric agents and its ease of cleaning, as well as for the wide range of colour schemes available on the market.

The climbing structures, as well as its other gymnastic equipment, consist among other materials of ropes. The nets and ropes that we use are made of extremely resistant lines, with a diameter of 16 millimetres, consisting of steel cables covered in plastic. 
The connecting elements and fastening eyelets are pressure-welded with the ropes to prevent any accidental or unauthorised deliberate opening.

The spring is the vital element in all spring-based play equipment and the quality of its performance is determined by the oscillation and resistance characteristics of the product itself over time. All of the springs are mechanically tested to meet the strictest safety standards. The special paintwork that covers the product surface also guarantees maximum protection against corrosion, damage from UV rays and particularly adverse or extreme weather.

Its ease of working and the excellent characteristics that are typical of this material have allowed us to create a large number of shapes using rotational moulding, in particular for elements such as: slides, climbing footrests, roofs, parapets, ladders, spring-based play equipment, activity panels, complementary furnishings, etc.
The polyethylene, produced using a rotational process, is subject to a deep colouration treatment so its colours will not fade. It is resistant to temperatures from -85°C to +90°C, has a high degree of resistance to UV rays and is 100% recyclable. Besides these fundamental characteristics, polyethylene is distinguished from other materials by its excellent resistance to wear, abrasion and shocks, its low friction coefficient and its minimal water absorption, as well as its excellent anti-adhesion properties and its low specific weight, which permits considerable savings to be made during the transport and assembly of products from which it is made.

Certifications: TÜV is a controlling authority which certifies various types of products, according to their construction compliance, in accordance with the applicable safety standards and regulations; If the product reflects all the necessary and requested features, the GS certificate (from German GeprüfteSicherheit, which means "controlled security") is issued. This brand, created in 1977, basically attests the conformity of the product, that receives it, with the regulations that protect and safeguard the user from possible injuries. In 1999, the controls were extended by the DIN 7926, also to the combination of the new EN 1176 and EN 1177, and then from 2000 onwards only to the latter. In order to be able to boast the TÜV brand, which is voluntary and thus represents an added value both to the manufacturer and to the product, compliance with specific and rigid test protocols are required, as well as the promotion of the periodic tests/controls to which the manufacturer and their products are subjected. The GS logo is valid for 5 years, after which the product has to be verified once again in order to receive a new certification. The brand guarantees that the item has been carefully evaluated in all its aspects (safety, toxicity, flammability, etc.), ensuring the functionality stated by the manufacturer and the maintenance of its characteristics over time, and also - almost by definition - excluding products with poor technical content or whose credibility is unreliable.