Entre Rios 242 / 244 (B1868BJF) Avellaneda - Pcia. Bs.As.- Argentina
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COMPARATIVE TABLE OF MAIN ELASTOMERS
GENERAL
PROPERTIES
1 Base polymer (General denom.)) Natural Rubber Natural Synthetic Butadiene S.B.R. Butyl E.P.D.M. Hypalon Neoprene Acryl
Nytril
Carboc.
Nytril
Hidrog.
Nytril
Acrylic Thiokol Viton Fluorine silicone Silicons Uretan Drina Epiclori Norsorex Vamac Tyrin
2 Chemical name Poliisopreno Poliisopreno Polibuta-dieno Butadieno estireno Poliisobuti leno Etileno propileno Polietileno propileno Policloro preno Butadieno acrilo nitrilo Acrilo nitrilo carboxilado Acrilo nitrilo hidrogenado Poliacrílico Polisulfuro Hidrocarburo fluorado Fluor vinil silano Polisiloxano Poliuretano Epicloridrina Polinorbo neno Etil acrilato Polietileno clorado
3 Designation ASTM 0-1418 NR IR BR SBR IIR EPDM-EPM CSM CR NBR XNBR HNBR ACM PR FKM FVMQ PMQ-PVMQ AU-EU CO-ECO PNR EA CM
4 Clasif. SAE J.200 ASTM 02000 AA AA AA AA-BA AA-BA CA-AA-BA CE BC-BE BF-BG-BK BF-BG-BK BK-CH-HK DF-DH AK-BK HK FK FE-FC-FG BG BK AA-BA FC-GE BC-BE-CE
5 Relativ taking SBR=1 1,2 1,5 1,5 1 2,5 3 2,75 2,5 2,5 6,5 40 3,5 3 55 60 12 4 a 10 3 a 6 2 3 2,4
6 Specific weight (gr/cm3) 0,92 0,91 0,91 0,94 0,92 0,88 1,18 1,25 1 0,98 a 1 0,98 1,09 1,35 1,86 1,4 1,1 a 1,6 1,25 1,27 a 1,36 0,96 1,03 a 1,12 1,16 a 1,22
7 Coefficient of thermal expansion
(10-6 ºC)
66,6 66,6 67,s5 66,6 57,6 57,6 48,6 61,2 70,2 S/D S/D 18 18 68,4 81 81 48,6 54,8 58 S/D S/D
8 Adhesion to metals /weaves E/E E/E E/B E/B P-B/B P-B/B E/B E/E B-E/B B/B B/B B/B-E P/P P-B/B B/E B/E E/B-E E-B/P-B B/B B/B B/B
9 Taste P-B P-E P-B P-B P-B B P-B P-B B B B P-B N P-B B E C B S/D B B
10 Smell B-E B B B B B B P-B B B B P N B B E E B B B B
11 No spot E E B P B B E B-E P P P-B B P P-B E E B B B B E
12 Rank of temperature work de -20 a 70 de -20 a 80 de -20 a 80 de -10 a 70 de -15 a 150 de -35 a 150 de -35 a 160 de -10 a 100 de -35 a 130 de -30 a 130 de -30 a 175 de -10 a 190 de -10 a 80 de -10 a 230 de -80 a 250 de -80 a 250 de -30 a 170 S/D de 0 a 70 de -15 a 175 de -35 a 160
 
PHYSICAL PROPERTIES Generals
ambient temperature
13 Rank of hardness (ºSh) 30-100 40-80 40-90 40-100 40-90 30-90 45-100 30-95 40-95 40-95 40-95 40-90 40-85 60-90 40-80 25-90 35-100 50-90 10-60 50-90 60-90
14 Resistance to the maxim traction (Kg/cm2) 300 300 200 220 200 200 250 250 250 250 250 150 100 200 100 0 450 150 220 150 175
15 Maxim breakage extension (%) 650 650 650 600 800 600 500 600 650 550 350 450 450 300 400 900 750 350 600 450 600
16 Permanent compression set E E B B P B P-B B B E B-E B C B-E P-B B-E B C B B B
17 Resilience E E E B P B P E B B P B P P P B P-B P-B B B-E P
18 Permeability to gases
(10-3cm2seg-1atm)
6,12 (P) 6,12 (P) 20 (N) 4,8 (P) 0,25 (E) 6,4 (P) 0,8 (B) 0,89 (B) 0,89 (B) 0,88 (E) 0,9 (B) 0,88 (B) 0,58 (B) 0,2 (E) 165 (N) 200 (N) 0,95/16 (C) 0,68 (B) 2 (B) 0,4 (E) 0,9 (B)
19 Electrical resistance E E E E E E B P C C P-B P P B E E B B E B P-B
   
Mechanical ambient temperature 20 Resistance to the flexion B/E B/E B/E B B N P/B B/E B B/E B P/B P P S/D N N S/D N B B
21 Resistance to the abrassion E B E B-E P B B-E B-E B E B-E P-B C B C P-B E B P-B B P
22 Resistance to the tear E E B P B P B B B-E B N N B N N-P E P-B P S/D S/D S/D
23 Resistance to the impact E E B E B B B B P E B-E C C B C C-P E P-E B B-E B-E
   
High
temperatures
24 Aging to 100ºC P-B P-B P B B-E E B-E B-E B B E E P-B E E E B B-E B-E B B
25 Elasticity to 100ºC B B B B P P-B P B B B-E E P C B-E B-E E C P-B B B-E B
26 Resistance to the flame N N C C C C B-E E C C C C N E E E C P-E B E E
   
Low
temperatures
27 Rigidity temperature (ºC) de -30 a -45 de -30 a -45 de -35 a -45 de -18 a -45 de -25 a -40 de -30 a -45 de -35 a -45 de -10 a -45 de -10 a -45 -45 -25 de +2 a -10 de -25 a -45 de -10 a -25 -55 de -50 a -82 de -25 a -35 de -25 a -40 -35 -15 -25
28 Glass point (ºC) -65 -65 -75 -65 -65 -70 -55 -65 -45 -50 -38 -7 -55 -50 -60 -50 de -50 a -93 de -25 a -45 -65 -35 -50
 
RESISTANCE Ambientals 29 Oxygen B B B P E E E E B P-B E E B E E E B B P-B E E
30 Ozone N N N N E E B-E B P P B B B E E E E B-E P-B E E
31 Water and solar light C   C C E E E B-E C C B E B E E E E B P-B B B
                                               
Chemicals 32 Water / steam E/B E/B E/B B/P E/B-E E/E B/B B/B B/P-B P/B-P B/B C/N B/C E/B E/P-B E/P P-B/C B/B B/ S/D P-B/P E/B
33 Alcalis diluted/ concentrated E/P-B P-B/P-B P-B/P-B P-B/P-B E/E E/E E/E E/E B/B B/B E/B B/B B/B E/E E/B E/E P/C B/C P/P B/E B/B
34 Acids diluted/ concentrated E/P-B P-B/P-B P-B/P-B P-B/P-B E/E E/E E/E E/E B/B B/B E/E B/B P/N B/P E/B   P/C        
35 Alifatic hydrocarbons (kerosene, etc.) N N N N N N P P E E B-E E E E E P/C B B-E P/B S/D P
36 Aromatics Hydrocarb. (benzene,toluen) N N N N N N B B B-E B-E P P-B P-B E N N P B-E P P N
37 Chlorinated hydrocarbons, detergent N N N N N N C C P-B P-B P B P-B E N N P-B E N P/B P
38 Ketones, reliable oxygenated B B B B B-E B-E B P C C-P P C E N C P-B C P P B-E N
39 Alcohols B-E B B B B-E B-E E E P-B P E C B P-B P-B P-B B P-B S/D B-E B
 
SWELLING Oils 40 Animals and vegetals C C C C B-E B B B B B P-B B E E E E E E B B B
41 Fuel oil N N N N N N B B E E E B E E E P P-B B-C N B B
42 Synthetic lubricants diester N N N N N N C C P-B P P-B C-P P-B E E N C B N B B
43 Low point lubricants aniline < 190ºC N N N N N N B E E E E E E E E B B E N P P
44 High point lubricants anilyn > 190ºC N N N N N N E B B B E E E E E P E E N S/D P
45 Liquid of brake bases nonhydrocarbon B-E B B B-E B B-E C C N N N C C P E E N C B S/D B
   
Hydraulic fluids 46 Base hydrocarbon N N N N N N P-B C-P B B E E E E E N B E N S/D C
47 Hydro-glycol B-E B-E B-E B-E B-E E B B P P P-B P-B E E E E B-P B B P P
48 Silicic Ester B-E B-E B-E B-E B-E B-E B C B B B B B E E N N B B S/D B
49 Phosphoric Ester B B B B E (250ºC Max) E (300ºC max) P P C C C C B-E B-E N B N N S/D S/D N
   
Refrigerantings 50 Ammoniacal B B B B B B B E B B E P N N E E C N S/D S/D B
51 Meter chloride C C C C P C N N N N N N B B B N N C S/D S/D N


    References: E = Excelent / B = Good / P = Poor / C = Use in special cases / N = do not use / S/D = non determined
    Note: This table has for object to offer an orientation of the behavior of the main elastometers