The suits are made with different materials, but the two great families where you can share are, dry suit in fabric and neoprene.
The fabric wetsuits are packed for the majority of cases with the following materials.
- Tri-laminate; born for military use, it remained for many years covered by secrecy but, once dropped the interest of various armies, its application has been extended to suits for use in sports. It consists of a nylon outer shell that provides good robustness to stress how abrasions and cuts, a layer of rubber toxin to which is entrusted the watertight real and another layer of nylon inside. There are several types that are distinguished by their heaviness, which is defined in grams per square meter. The most used ones for packaging dry suits are the TLS1 and TLS4 (TLS is the Tri-Laminate Suit acronym). The fabric is cut and welded with various processes and subsequently all joints are taped both internally and externally to ensure perfect waterproofing, upon completion of all the boots are applied, the zipper, the collar and cuffs.
- Polyurethane; this particular fabric is made of polyester coated with thermoplastic polyurethane. The procedure for creating suits of this type is very similar to the mute in tri-laminate, due to its characteristics is identified as right balance between gravity and elasticity, Tri-laminate and rubber wet suits made with this fabric have good resistance to mechanical stress and chemical agents.
- Rubber; the procedure for packaging of rubber base is particularly articulate, in fact the rubberized fabric is cut, shaped, and various pieces are assembled by means of tapings at this point are assembled on the mute “raw” aluminum mannequins and tablets high temperature autoclave, consequently the rubber vulcanization process undergoes becoming virtually one piece. As you can easily guess the tightness is nearly perfect since, practically, there are no joints. Dynamic resistance is very good; in fact this type of mute is used frequently in commercial diving for work to be performed in shallow water without saturation.
With all the fabric base, in order to ensure proper thermal insulation, they must wear certain underwear according to PolyHobbies, which may have characteristics of variable weight and thickness depending on the water temperature and the type of diving.
The neoprene suits are divided mainly into three subcategories below:
- Wetsuits in neoprene foam; made with traditional thick neoprene foam with excellent thermal insulation, but not very suitable for deep dives, in fact crushing material due to pressure leads to a decrease of heat insulation and also undergoes large changes.
- Wetsuits in prestressed neoprene; in this case the neoprene is compressed during the expansion process, therefore the material gets thinner until desired thickness neoprene maintains a thermal insulation still good and trim variations due to crushing material are minimal.
- Wetsuits in broken-cell neoprene; prerogative of a famous American home this fabric is very similar to concrete but has a much greater resistance to cuts and abrasions. The story of its discovery is very curious and begins in hyperbaric chambers of altofondalisti. Deep divers working in saturation, experiencing even for weeks inside hyperbaric chambers brought at the same pressure of underwater environment where they worked, they had to send outside their neoprene suits because they were washed. These consequently, facing a sluggish decompression as it does, of course, for divers, suffered a sudden depressurization and, because of this, neoprene expanded cells making wetsuits in some cases even three times larger than the original size. Then slowly return to its original size but suffered a decrease in the thickness of neoprene. With each operation of recompression and decompression wetsuits suffered the same process until the neoprene that composing became a sheet very fine, very soft and highly resistant to cuts and abrasions while maintaining also a still decent insulation. This phenomenon was later exploited as mentioned above, by a well known company entering the market suits made with such materials. Unfortunately the process of working with this material, although industrialized, not so complex and laborious enough remains lower costs on the market.
Even with the neoprene suits are worn of undergarment, but thick and heaviness below those used with fabric suits.