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PROGRESS SILICONES PRODUCES O-RINGS FOR ALL SECTORS OF INDUSTRY. French and international standards Custom-made O-rings from one-off items to large series. Hardness from 5 to 90 Shore A depending on the material: Silicone FPM / FKM (fluorocarbone) EPDM (ethylene-propylene-diene monomer) NBR (acrylonitrile-butadiene) HNBR (hydrated acrylonitrile butadiene caoutchouc) CR (polychloroprene) We provide materials in various grades by prior request: Contact with food:FDA, BFR Contact with water: KTW, ACS, NFS61, WRAS, W270 Pharmacopoeia: USP class VI, ISO 10993... Implantable < 29 days Aeronautics ROHS REACH Secondary services: Special packaging: blister, kraft paper, etc. Packs for O-rings Personalised labels Please contact our Sales department for further information on our O-rings.

Enox DTBP (Ditertbutyl peroxide) is a transparant liquid which has C8H18O2 as chemical formula. This dialkyl peroxide is used as initiator for the production of Low Density Polyethylene (LDPE). Further it finds its application in the polymerization and copolymerization of styrene, olefins and acrylic resins and as modification agent of polypropylene degradation. Ditertbutyl peroxide is also known as DTBP, peroxide bis(1,1dimethylethyl) and tertButyl peroxide. Availability Europe Enox DTBP is on stock in our local warehouses. Our lead time is about one week if delivered in 20 KG PE drums. South America, South Africa and other markets can also be served, please contact our sales department for more details.

Viacat 4100 (Monobutyltin Oxide) is a white powder which has C4H10O2Sn as chemical formula. It is an noncorrosive organotin compound which can be used in the synthesis of saturated polyester in powder coatings, insulating varnishes and coil coatings. Monobutyltin Oxide is also known as butylhydroxostannane, butylstannonic acid and butylhydroxytin oxide. Availability Europe and United States ViaCat 4100 (MBTO) is on stock in our local warehouses in both Europe and United States. Our lead time is about one week if delivered in 25 KG drums. Canada, South America, South Africa and other markets can also be served, please contact our sales department for more details.

ViaCat 400 (Dibutyltin diacetate) is a colourless to yellowish substance which has C12H24O4Sn as chemical formula. It is liquid at room temperature and is used as catalyst for room temperature crosslinking of silicon / rubber sealants, polyurethane coatings and for esterification and transesterification reactions. Dibutyltin diacetate s also known as diacetoxybutyltin, dibutyltin di(acetate) and bis(acetyloxy)dibutylstannane Availability Europe and United States Provided ViaCat 400 (DBTDA) is on stock in our local warehouses our lead time is about one week if delivered in 25 KG drums. Canada, South America, South Africa and other markets can also be served, please contact our sales department for more details.