Introduction to our Fabrics
Our fabric CSM explained
CSM (Chlorosulphonated Polyethylene) - Hypalon® alternative
Built for the SEA
CSM is a synthetic rubber with an unmatched record on the water and for four decades of proven performance in inflatable boats, RIBs, lifeboats and tenders. Where extreme conditions demand uncompromising material. Originally formulated to resist the harshest natural and man-made environments: UV radiation, saltwater, oil, petrol, heat - it has formed the outer armour of Achilles inflatable boats for over forty years.
CSM is still CSM.
From the beginning, Achilles has always used CSM from DuPont with the brand name Hypalon®. DuPont stopped producing Chlorosulphon polyethylene (CSM) in 2010 so that the Hypalon® brand no longer exists. But Achilles still uses Chlorosulphon polyethylene (CSM) manufactured to the same demanding specifications as Hypalon®.
Four layers, one purpose
The fabric is engineered as a laminated system. Each layer performs a distinct function - and together they create material that is simultaneously tough on the outside, airtight on the inside, and structurally rigid in between.
The dual chloroprene layers are especially critical: chloroprene has over 75 years of proven airtightness in demanding industrial seals and diaphragms. Here it keeps your inflatable boat inflated, longer.
Engineered for extreme conditions
- UV & Heat Resistance: the CSM outer coating withstands prolonged exposure to direct sunlight and extreme temperatures without discolouration, cracking or loss of mechanical properties
- Saltwater Durability: designed for the marine environment. Salty seawater, spray and immersion have no measurable effect on the coating's performance or appearance over time
- Oil & Fuel Resistance: CSM resists petrol, oil and common chemicals, critical around engine nacelles, refuelling areas and working harbour environments
- Superior Airtightness: The double chloroprene inner layers provide extremely low gas permeation. Inflatable boats stay firm longer, reducing maintenance and increasing safety
- Abrasion Resistance: the heavy-duty polyester core and tough CSM exterior resist mechanical wear from beach landings, dock edges and daily use in professional marine operations
- Easy Maintenance: highly resistant to stains and dirt. The surface cleans easily and retains its appearance season after season, an important factor in resale value and client satisfaction.
Would you like to know more about CSM rubberized fabric?
CSM fabric produced specifically for use in inflatable boats and is available in various colours and designs including the widely sold T10 Series (1100dtex) for recreational boats and T15 Series (1670dtex) for larger professional boats such as tenders and lifeboats. Both types of CSM fabric versions are ISO 6185-3:2014 certified. With this you can be sure that the CSM rubberized fabric from Achilles meets the applicable safety standards. Producers of Inflatable boats and related products are a trusted target audience for Wendt. Click here to read more about the product specification, properties and incorporation of Achilles CSM fabric for inflatable boats in your products.