STENSO - Dynalast O-Ringe

ynalast@FFKM is one of the latest develop- ments in the field of perfluoroelastomers. Dynalast@FFKM combines the elasticit5r of fluoro- elastomers (FKM) with the chemica-l resistance of polytetrafluoroethylene (PTFE), providing real solutions to the most demanding sealing problems. The basJmonomers of Dynalast@FFKM are very expensive and the manufacturing processes very complex, meaning very high production costs, beyond comparison with other elastomers. wtrr efrroos# nnYAl.asf srBn oflafFR PMRft f"TtrONSMLASlrCITfSRS F i Because of the different grades of materials offering optimal performance for a range of applications: . Specific formulations, . Variable curing processes, . Wide range of colours (upon request), . Hardness range: 60 - 90 Shore A. I Because of the wide range of possible shapes and sizes: . O-Rings, . Plates, . Balls, . Membranes, . Specific seals, . Rubber/ metal composites. i Because of quick delivery. I Because of its excellent value for money. APVATNrAGBS SF NtrffAT-AStr FPKffi As well as having similar elasticity to other elastomers, Dynalast@ offers the following advantages : . More or less identical chemical resistance to PTFE, ie: far higher than that of fluoroelas- tomers (FKM), . Maximum temperature : 290'C for continuous operation with a peak temperature of 3100c , (The table on the third page compares the tem- perature resistances of the different materials.) . Excellent resistance to atmospheric agents, and ozotte, . Optimal seal with vacuum and high vacuum, even in the presence of high temperatures. These advantages guarantee the Dynalast@ FFKM user reduced maintenance costs and minimise operating losses. APP&fq.{ffOtrS I Chemistry: Dynalast@ resists almost all chemical reagents, solvents, ethers, ketones, amines, oxidatives, carbu- rants, acids, bases, etc... Dynalast@ FFKM resists high-temperature steam containing corrosion inhibitors (eg : amines). I Petrochemicals, oil and gas production : aniline, sulphuric acid, sodium hydroxide, diethanolamine, diethyl formamide, octane, etc... I Pharmaceuticals and cosmetics : amines. acetic acid, nitric acid, aniline, toluene, etc... I Dyes and paints : ethyl acetate, acetone, methyl ethyl ketone, diethylene dioxide, etc... t The semiconductor industry : Only Dynalast'FFKM can meet the critical tightness requirements of this industrial sector : high temper- atures, high pressures, chemical corrosion, efficient operation where gases are used, contamination prevention : plasma, acids, bases, solvents, ultra- pure deionized water, etc... I Phytosanitary products industry : ><ylene, aniline, acetic acid, sulphuric acid, nitric acid, ammonium hydroxide, etc... i Photographic industry : amyl acetate, acetic acid, etc... O Detergent industry : benzene, ethyl benzene, sodium hydroxide, etc... I Plastic industry : amines, aniline, ethyl acetate, ammonium hydroxide, benzene, methylene chloride, st5rrene, dimethylfor- mamide, etc...