Product Description s2

PETROFLEX NBR 3300 Series TECHNICAL DATA

 PRODUCT DESCRIPTION PETROFLEX NBR 3300 Series Elastomers are acrylonitrile- a non-staining antioxidant, which imparts excellent heat aging butadiene copolymers with low bound acrylonitrile content properties. Sufficient non-staining antioxidant is added during (33%), available in a wide Mooney viscosity range to attend manufacture for normal storage conditions. the most different process needs and technical properties PETROFLEX NBR 3300 Series Elastomers are suitable for related to the desired application. the production of oil and solvent resistant articles. PETROFLEX NBR 3300 Series Elastomers are produced by Due to its medium-low content of acrylonitrile, PETROFLEX cold emulsion polymerization under controlled temperature, by NBR 3300 Series Elastomers are recommended for using in a continuous process. This assures a grater regularity on artifacts where flexibility at low temperature and moderate oil molecular weight distribution, monomer composition and and solvent resistance are required. greater uniformity on processing conditions. It is stabilized with

 TYPICAL APPLICATIONS

PROCESS PRODUCT APPLICATION Seals, gaskets, ‘O’-rings. Injection, compression, high flux injection processes. NBR 3330 Hoses (high pressure hoses, hydraulic and pneumatic devices), seals, Compression, injection-compression, gaskets, ‘O’-rings, shoe soles, technical goods and autoparts, expanded injection-transference, injection. NBR 3350 goods. NBR 3360 NBR 3380

 POLYMER SPECIFICATIONS PROPERTY SPECIFICATION NBR 3330 NBR 3350 NBR 3360 NBR 3380 o Mooney Viscosity, ML (1+4) 100 C 23.0 – 35.0 38.0 – 49.0 50.0-65.0 68.0 – 85.0 Bound Acrylonitrile (%) 31.0 – 35.0 Volatile material (%) 0.75 max. Ashes (%) 0.50 max. Residual Fatty Acids (%) 3.0 max. Residual Soap (%) 0.50 max. Solubility in MEK (%) 95.0 – 100.0

 PROCESSING PETROFLEX NBR 3300 Series Elastomers can be prepared preparation or further processing. The processing properties and processed on conventional machinery used in the rubber are decided mainly by the NBR type used for the compound, industry (mixing mills or internal mixers). but depend upon the choice of fillers, plasticizers and The processing of NBR compounds is similar to that of processing aids. The curative systems also may influence the correspondingly SBR or natural rubber compounds. processing behavior Nevertheless, some differences should be noted. With NBR . there is very little viscosity reduction during either the

 PACKAGING AND STORAGE PETROFLEX NBR 3300 Series Elastomers are supplied in place, away from direct light and sources of heat such as bale form in cardboard boxes with an internal layer protection steam pipes, boilers and under temperatures not above 104 ºF of silicone or in wood boxes with an internal polyethylene bag. (40 ºC) to maintain quality. Each box contains 36 bales of 35 kg. Product’s shelf life is two years from the date of its production Care should be taken to store nitrile elastomers in a cool, dry if it is storage just in its original packaging.

 HANDLING AND SAFETY PETROFLEX NBR 3300 Series Elastomers are not dangerous when processed in accordance with the product’s MSDS (Material Safety Data Sheet).

NOTE: Petroflex shall be not liable under any circumstances for misuse of the information of this manual. The data printed herein is correct , however it has been obtained from laboratory work. Preliminary tests must be made with the product in order to set process variables.

Petroflex Ind. e Com. S/A 0d9910669fbb56189431b265016662ff.doc I/1 Tel.: +55-21-2677-1061 e-mail: [email protected]