We manufacture prototype and bespoke gaskets in high quality Neoprene. We can manufacture Neoprene gaskets in high and low volumes, to high tolerances.
Neoprene or Polychloroprene (CR) rubber sheeting is a synthetic rubber made with the addition of Chloroprene for polymerisation.
Chloroprene is the common name for the organic compound 2-chlorobuta-1,3-diene, which has the formula CH2=CCl−CH=CH2. Neoprene is a trade name and was invented by DuPont scientists in 1930.
Neoprene resists degradation more than natural or other synthetic rubber. It has excellent Weather Resistance, good mechanical properties and is Moderately Resistant to Oils and Fats, refrigerants, ammonia, carbon dioxide.
Neoprene is NOT recommended for Aromatic Hydrocarbons, (benzene); chlorinated hydrocarbons (trichloroethylene); polar solvents (ketones, esters ethers, acetone)
Temperature Range -20C to 90C Neoprene's burn point is around 260°C (500°F).
Burning characteristics;- Inconsistent burning of flame giving off a plastic burning smell and copious pale yellow fumes. Neoprene self- extinguishes after the removal of the flame leaving a charred surface.
There are many grades and degrees of hardness available.
For Aerospace & Defence Industries a British Standard BS2752; 2003 grade is recommended. Hardness range is from 40 to 90 shore. (C40 to C90)
Specialist grades have been developed for the Rail Industry giving Anti –Static & Flame Retardant properties conforming to both UNE 23727;1990 & NF16101.
There are Food Safe White grades that conform to EU1935; 2004 2023/6 @ FDA CFR Sub Part C 177.2600
Unless the above grades are specifically requested it is normal practice for manufacturers to offer commercial grades of Neoprene rubber which is a Chloroprene /Styrene Butadiene Rubber (CR/SBR) mix which are perfectly acceptable for General purpose Gasketing use . Pricing is lower, however so are some of the physical and mechanical properties.
Our current stock hardness range: - 40, 50, 60, 70, 80, & 90 Shore A
Our stock thickness; - 0.25 0.5 0.8 1.0, 1.5, 2.0, 2.5 3.0 4.0 5.0 6.0 8.0 10 12 15 20 25
Neoprene is also available in expanded Closed Cell Sponge form. See our EX range of sponges.
Note; - Hypalon rubber generally performs better than Neoprene in heat and chemical resistance and has better Low Gas Permeability. However it is not generally available.