Dai-El: High Performance Fluoroelastomers
Dai-El: High Performance Fluoroelastomers
DAI-EL
DAI-EL fluoroelastomers
stand up to harsh
environments.
Fluorochemicals produced by
DAIKIN INDUSTRIES, LTD.
makes it easy to
develop new products
and applications.
DAI-EL is a fluoroelastomer
developed by
DAIKIN INDUSTRIES, LTD., a pioneer in
the fluorochemical industry.
DAI-EL takes advantage of properties
not found in other rubbers such as heat,
oil and chemical resistance.
DAI-EL plays an indispensable role
in fast changing industries including
automotive, chemical, office automation,
and semiconductor manufacturing.
1
DAI-EL Features
Able to
Heat withstand
Resistance temperatures as
high as 300°C.
Solvent Oil
Resistance DAI-EL Resistance
DAI-EL
Offers best
Offers best
resistance to Thermoplastic resistance to oil
solvents
DAI-EL Latex
■ PROPERTY COMPARISON OF
FLUOROELASTOMER WITH OTHER
RUBBERS
Type Silicon Acrylic Nitrile Ethylene
Fluoroelastomer propylene
rubber rubber rubber rubber
Crankshaft seals
Fuel pump
diaphragms
Auto
mobiles
Fuel hoses
Cleaning blades
OA
Equipment Rollers for copying
machines
Electrical
3
Omni-mixers
(surface coating of natural rubber)
Sponge rubber
Chemical
and
Mechanical
Couplers (O-ring)
1O-rings for chemical pumps 1Seals for hydraulic and lubricating equipment
Diaphragms (applied in combination with
fluorocarbon resin) 1Seals for chemical pumps, flowmeters and piping 1Seals for dry cleaning equipment
1Seals for gas piping 1Seals for automatic packaging equipment
1Packing for high-temperature vacuum dryers 1Wringers for acid pickling
1Rollers for dyeing 1Robot cables
Rubber rollers
1Coating foe plating tools 1Solvent rollers
Packing for
thermos jugs
Transparent tubing
Food and
Pharmaceuticals
1Sanitary pipe packing
1Packing for thermos jugs
1Packing for pressure cookers
1Seals for plate-style heat exchangers
1Solenoid valve seals for automatic vending machines
1Seals for water boiling vessels
1Tubes
4
DAI-EL Types and Features
DAI-EL is available in the following raw rubber series which differ
according to polymer composition and curing system.
Fluorine viscosity
content Grade ML1+10 Features
(mass%) (121°C)
G-701 32 General purpose with excellent compression set
G-702 32 General purpose with excellent elongation and tear strength
Copolymer
30
G-558 G-621
G-702
25
Compression Set (%)
G-551
G-763
G-755
20 G-723
G-671
G-751
G-701
15
G-716
10
20 25 30 35 40 45 50 55
Mooney Viscosity ML1+10(121°C)
5
Peroxide Curable Grade
Offers excellent chemical and steam resistance. Offers good mechanical
characteristics.
Liquid Fluoroelastomer
Grade Application
Thermoplastic Elastomer
Grade Melting Point Features
6
Fluoroelastomer with excellent low-temperature sealing characteristics Thermoplastic fluoroelastomer
20
similar to those of a
DAI-EL Thermoplastic Concept
DAI-EL fluoroelastomer. Drawing
LT-302
DAI-EL G-801
Recovery rate (%)
40
Competitor's Features
product
60 1Good transparency
1Excellent chemical
80 resistance
Low extractable substance
100
−50 −40 −30 −20 −10 0 10 20 1Recyclable
Temp(°C)
Application examples
Mechanical Characteristics of Cured FKM
Product type Competitor's
Item
LT-302
Product Fluoroelastomer Latex
Fluorine content (mass%) 64 64
Specific gravity
100% tensile stress (MPa)
1.80
3.7
1.80
3.9
DAI-EL Latex
Tensile strength (MPa) 18.9 19.1
Elongation (%) 260 250
DAI-EL Latex takes advantages of superior DAI-EL
Hardness Shore A 67 67 characteristics such as resistance to heat, chemicals,
Tearing strength (kN/m) 24 21 oils and weather. DAI-EL latex provides effective
Low-temperature characteristics
TR test TR10 (°C) −31 −31 protection for metal and surface improvement for
Gehman torsion test T50 (°C) −32 −31 textile binders and ordinary rubber. It can be applied
Compression set
−30°C×70h (%) 39 67 by impregnation and spray-coating techniques.
Fuel resistance (%) (40°C×70h volumetric increase)
Fuel-C 13 13 Features
Fuel-C+15% MeOH 37 40
Fuel-C+10% MTBE 19 19 1Film coating provides same resistance to heat,
chemicals, oils and weather.
1Grades are available for self lubrication and non-
adhesive application.
Application examples
7
400
G-902
Elongation (
300
200
DAI-EL Properties
G-701
100
Fig. 5
1 Heat Resistance
Hardness (Shore A)
75
DAI-EL can withstand atmospheric temperatures as G-701
high as 230°C for an extended period of time or 300°C G-902
70
for a limited period of time. Elongation and tensile
strength change at temperatures ranging from 200 to
0 50 100 150 200
280°C after 70 hours of heat treatment are shown in Temperature (°C)
figures 1 and 2. Bisphenol-cured G-701 can withstand
continued use at temperatures up to 230°C, while
peroxide-cured G-902 can withstand up to 200°C.
3 Compression Set
Fig. 6 shows the correlation of compression set and
Fig. 1
heat treatment time. DAI-EL maintains sufficient sealing
+40 for a minimum of 2,000 continuous hours at 200°C.
change rate (%)
G-902
G-701 Fig. 6
Elongation
+20
G-701
P-24 O-ring ※ 200℃
175℃
80
0
25℃
−20 20
G-902 G-701
100℃
Fig. 7
Fig. 3 Gasoline Toluene ASTM Oil No. 3
(7 days at 25°C) (7 days at 25°C) ( 2 days at 120°C )
20 400 418
strength (MPa)
G-902
Volumetric increase (%)
15
G-701
Tensile
10
5 300
300
0 50 100 150 200
Temperature (°C)
Fig. 4
200
Elongation (%)
400
G-902 163
300
130 130
200
G-701
100
100
55
0 50 100 150 200 32
Temperature (°C) 6 6
3 2
Fig. 5 0
Ethylene propylene
Styrene-butadiene
Hardness (Shore A)
Silicon rubber
Acrylic rubber
Silicon rubber
Acrylic rubber
75
Silicon rubber
Nitrile rubber
G-701
DAI-EL
DAI-EL
DAI-EL
G-902
rubber
rubber
70
Methanol D A
Ethanol A A
Isopropyl alcohol A A
t-butyl alcohol A A
−50
Metyl Cellosolve D A
Etyl Cellosolve D A
Silicon rubber
Butyl Cellosolve C A
Glycerine A A
Ethylene glycol A A
<Fuels> 40°C × 70h
−100 Fuel A A A
0 10 20 30 Fuel B A A
Period (d)
Fuel C A A
Fig. 9 Volumetric change rate for 190°C steam Fuel D A A
Gasoline A A
10 White kerosene A A
Fuel C + methanol (10%) C B
Fuel C + methanol (20%) D B
Volumetric change rate (%)
G-801
15 G-755 G-902
10
G-575 11 Abrasion Resistance
Fig. 14 shows the results of the Taber abrasion test.
5 Fig. 14
66 68 70
Fluorine content (mass%) G-701
G-702
9 Low-Temperature Properties G-801
Fig. 11 TR Test
0
12 Gas Permeability
TR10(ºC) G-603
G-621 DAI-EL offers excellent resistance to gas permeation
G-900Series
(see table 3), and is widely used for sealing in high-
vacuum equipment with 10-6 〜 10-9 Torr.
-10
Table 3
G-501
G-700Series Gas permeability (cm3·mm / m2·24h·atm)
G-801 Gas
G-551 DAI-EL G-501 DAI-EL G-902
G-558
O2 88 118
-20 59 48
N2
66 68 70 72 CO2 93 109
Fluorine content (mass%) 876 1900
He
Fig. 12 Gehman Torsion Test H2 295 −−
150
13 Electrical Properties
120
G-701 offers volume resistive of 1013Ω/cm and G-902
G-801
offers 1014 Ω /cm. Applications include electrical wire
Twist angla (degree)
90
sheathing that requires resistance to heat, oil and
steam.
G-701
60 G-902
14 Ozone Resistance
DAI-EL offers superior weather resistance. No
30
cracking was noticed even after 300 hours of
continuous exposure in 150 ppm of ozone at 60°C.
0
−40 −30 −20 −10 0 10 20
Temperature (°C)
10
DAI-EL Grades and Their Properties
Diamine Bisphenol cure system
DAI-EL Terpolymer Copolymer
G-501NK G-701 G-702 G-704 G-716 G-717 G-723F G-751 G-755 G-763F
Fluorine content (mass%) 68.0 66.0 66.0 66.0 66.0 66.0 66.0 66.0 66.0 66.0
Mooney viscisity
ML1+10・100˚C 110 55 54 47 65 65 63 52 45 52
ML1+10・121˚C 74 35 35 28 40 40 41 31 27 31
Compound mooney viscisity
ML1+10・100˚C 136 100 100 90 110 110 120 90 75 90
Curing properties
Temperature (˚C) 160 170 160 170 170 170 170 170 160 170
Curelastometer, T90 (min) 5.0 4.5 4.0 3.5 3.5 3.0 2.5 3.0 11.5 4.0
MDR, T90 (min) 6.0 6.5 5.0 4.5 4.0 4.0 3.0 4.0 15.0 4.5
Physical properties
Specific gravity 1.93 1.85 1.85 1.85 1.85 1.85 1.85 1.85 1.85 1.85
100% moduus (MPa) 4.1 5.3 3.4 3.4 4.5 3.2 4.2 5.1 2.4 3.3
Tensic stregth (MPa) 17.4 15.0 17.7 14.0 13.9 13.1 15.0 15.0 14.2 14.5
Elongation (%) 280 190 290 240 200 250 220 190 340 240
Hardness (peak) (SHORE A) 75 73 68 72 72 69 71 72 65 69
Hardness (3sec) (SHORE A) 69 70 65 66 68 64 67 68 60 63
Tear stregth (angle type) (kN/m) 45 30 40 32 33 34 32 30 36 33
Compression set P-24 Oring
25˚C×70hours (%) 65 7 22 15 7 11 13 9 13 13
50˚C×70hours (%) 45 6 21 14 6 10 12 10 12 12
100˚C×70hours (%) 28 5 14 9 5 5 7 6 8 8
150˚C×70hours (%) 35 6 14 7 5 6 8 7 9 9
175˚C×70hours (%) 50 11 20 13 8 10 11 11 12 12
200˚C×70hours (%) 65 17 27 22 13 15 20 16 21 20
Low temperature properties
Embrittlement tempereture (˚C) -31 -17 -25 -21 -18 -21 -21 -17 -21 -21
TR test
TR10 (˚C) -16 -18 -18 -18 -18 -18 -18 -18 -18 -18
TR70 (˚C) -8 -10 -10 -10 -10 -10 -10 -10 -10 -10
Gehman torsion test
T2 (˚C) -9 -7 -8 -8 -7 -8 -8 -7 -9 -8
T10 (˚C) -15 -14 -16 -15 -15 -15 -15 -13 -15 -15
Air aging test 230˚C×70hours
Tensile strength change rate (%) -15 -2 -5 -3 5 5 -5 3 -5 2
Elongation change rate (%) 10 -7 -3 4 -5 -5 -3 5 4 -15
Hardness change (peak) 1 0 0 1 0 0 0 0 1 0
Air aging test 250˚C×70hours
Tensile strength change rate (%) -35 -6 -2 1 7 5 3 6 -10 0
Elongation change rate (%) -5 -4 -5 6 0 5 3 5 10 -5
Hardness change (peak) 4 -2 -1 -1 0 0 0 0 0 1
Air aging test 275˚C×70hours
Tensile strength change rate (%) -41 -20 -39 -30 -12 -15 -23 -38 -28 -33
Elongation change rate (%) -13 14 30 26 10 12 20 10 23 20
Hardness change (peak) 6 -1 1 0 1 0 0 0 0 1
Oil and chemical resistance volume change rate(%)
IRM903oil 175˚C×70hours 2 2 2 3 2 2 2 3 3 2
Methanol 40˚C×70hours 25 72 125 95 70 95 100 77 116 115
Ethanol 40˚C×70hours 3 4 5 4 4 4 4 4 4 5
Toluene 40˚C×70hours 15 18 23 20 17 19 20 19 23 21
Fuel-C 40˚C×70hours 12 13 14 13 13 13 13 13 14 13
* Peak value
11
Bisphenol cure system Peroxide cure system
Terpolymer Copolymer Terpolymer Special
G-555 G-551 G-557 G-558 G-562 G-621 G-671 G-801 G-802 G-901 G-902 G-912 G-952 LT-252 LT-302 LT-304
69.0 68.5 69.0 69.0 68.5 70.5 66.0 66.0 66.0 70.5 70.5 70.5 69.0 67.0 64.5 65.0
43 86 42 45 77 88 60 66 45 97 50 76 78 40 65 50
35 54 34 32 47 53 39 40 21 53 21 58 40 30 45 26
160 170 160 160 170 170 170 160 160 160 160 160 160 160 160 160
7.0 3.5 4.0 8.0 3.0 4.0 3.0 2.5 2.5 3.0 3.0 2.5 2.5 2.0 2.0 2.0
5.5 5.0 6.5 13.0 4.5 7.0 4.0 3.5 3.5 3.5 3.5 3.5 3.5 3.5 3.5 3.5
1.89 1.88 1.89 1.89 1.88 1.91 1.85 1.80 1.80 1.87 1.87 1.87 1.84 1.82 1.80 1.80
2.7 4.4 1.7 2.5 2.6 3.7 5.1 2.0 1.9 2.8 3.1 8.0 2.3 1.8 1.6 2.0
12.7 14.2 11.3 11.6 14.7 16.2 15 21.5 21.0 22.0 22.0 20.0 21.7 13.5 14.8 15.0
330 220 440 310 330 280 200 450 400 320 320 160 320 280 320 250
73 73 66 68 71 76 71 67 67 70 70 74 67 63 62 63
63 70 62 58 64 69 68 61 61 67 67 70 63 58 57 58
30 31 36 31 38 41 31 43 40 35 39 40 38 43 46 43
28 18 40 30 35 20 10 21 19 13 13 7 10 8 8 6
25 18 38 30 35 17 9 20 18 13 13 6 10 8 8 6
17 11 32 20 22 18 7 16 14 13 12 6 9 10 9 7
18 11 31 22 23 19 8 16 14 13 12 8 9 13 12 8
21 19 33 25 28 20 10 22 16 17 15 11 16 17 12 10
29 23 44 35 40 30 19 30 25 32 28 16 30 28 22 15
-26 -21 -27 -26 -25 -15 -23 -25 -25 -26 -26 -20 -26 -30 -38 -35
-14 -14 -14 -14 -14 -8 -20 -19 -19 -8 -8 -8 -14 -27 -31 -30
-7 -8 -8 -8 -8 -2 -12 -11 -11 -2 -2 -2 -8 -21 -25 -20
-10 -3 -20 -15 -7 -1 5 -45 -48 -67 -62 -25 -65 -62 -25 -15
13 5 10 13 5 3 5 31 4 66 107 51 70 63 12 10
1 1 1 1 0 1 0 -2 0 -3 0 -2 -3 -3 -1 -1
3 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2
15 15 17 15 17 3 75 119 110 3 4 4 13 8 95 80
3 3 3 3 3 1 3 2 2 1 1 1 2 3 7 5
13 13 15 13 15 8 19 23 21 7 7 7 16 15 22 16
11 11 12 11 12 7 13 13 8 8 5 5 10 10 13 11
12
Safe handling
1. Compounding agent and The common fillers and facilities for commodity rubber can be used for
facility DAI-EL. The mixing mill needs to be cooled. Finely divided metallic powder or
filler, such as aluminum and magnesium, or amine compounds of more than
10% should not be used as compounding agents for DAI-EL because such
materials are known to decompose vigorously at moderately elevated
temperature.
2. Storage and remixing Store the compound in a tightly closed package in a cool and dry place.
Another milling before use is recommended when the compound is left for
more than three days. Too tight a nip between the rolls in the mixing mill may
cause scorching. Be sure to cool the rolls well whenever the compound is
milled with tight nip.
3. Molding / Curing The work area should be adequately ventilated at all times because a small
amount of toxic gases (e. g. HF, acetone, methanol, acetaldehyde, methyl
iodide and carbon monoxide) may be evolved during curing.
4. Material handling A slight amount of hydrogen fluoride vapor may be produced during use at
high temperatures (above 200°C). The room should be well ventilated.
Do not smoke in the work areas as harmful vapors may be inhaled when
cigarettes are exposed to the powder of DAI-EL. After handling the powder of
DAI-EL, knock off any dust from your hair or clothing and wash your face and
hands thoroughly before smoking.
5. Disposal Do not incinerate DAI-EL as this can produce harmful vapors. Disposal should
be done in accordance with local laws and regulations.
13
IMPORTANT NOTICE: The information contained herein is based on
technical data and tests we believe to be reliable and is intended for use by
persons having technical knowlege and skill, solely at their own discretion and
risk. Since conditions of use are outside of control, we assume no responsibility
for results obtained or damages incurred though application of the data given;
and the publication of the information herein shall not be understood as
permission or recommendation for the use of our fluorocarbon compounds in
violation of any patent or otherwise. We only warrant that the product conforms
to description and specification, and our only obligation
shall be to replace goods shown to be defective or refund the original purchase
price thereof.
14
• DAIKIN INDUSTRIES,LTD., DAIKIN AMERICA,INC.and DAIKIN CHEMICAL NETHERLANDS
B.V. have obtained the ISO 14001(*1) certification for the environmental management system,
and the ISO 9001(*2) certification for the quality management system in our fluorochemical
plants.
(*1) ISO 14001 is a standard established by the ISO (International Organization for
Standardization) which applies to environmental preservation activities. Activities, products
and services of our company have been certified as being environmentally sound by an
internationally recognized certification body.
(*2) ISO 9001 is a standard established by the ISO and applied to quality management system.
DAIKIN INDUSTRIES, LTD. Chemical Division, DAIKIN AMERICA, INC. and DAIKIN
CHEMICAL EUROPE GmbH have been certified by an internationally recognized
certification organization for our ability to consistently provide products, which satisfy
customer's demand and applicable regulatory requirements.