SE6035 and SE6075 General Purpose
SILPLUS® Elastomers

PRODUCT DESCRIPTION

SE 6035 and SE 6075 are general purpose Silplus stocks which have durometers of 35 and 70 respectively. They are designed to accept moderate to high levels of reinforcing or extending fillers and additives for property variation. They can also be blended to provide durometers between 35 and 70.

KEY PERFORMANCE PROPERTIES

  • Simplicity and accuracy in compounding
  • Formulation versatility to achieve end use requirements
  • Easily compounded and fabricated using conventional techniques.

TYPICAL PRODUCT DATA
Typical Properties of Uncured Compounds

Properties SE 6035 SE 6075
Specific Gravity 1.10+/- 0.03 1.21+/-0.03
Appearance Translucent Translucent
Polymer Classification  (ASTM D-1418) VMQ VMQ
Williams Plasticity    
(ASTM D-926)
180 425

SPECIFICATIONS

Typical Product Data values should not be used as specifications. Assistance and specifications are available by contacting Momentive Performance Materials at 800/255-8886.

Formulation   A B A B
SE6035   100 100    
SE6075       100 100
DBPH-50   0.8 0.8 0.8 0.8
ASTM
Reference 
Method
Press Cure 10 min. @ 177C (350F)
Post Cure 1 Hr. @ 200°C (400°F)
       
D2240 Shore A Hardness 34 30±5 74 75±5
D412 Tensile Strength,psi  1320 900 1350 1000
  MPa 9.1 6.2 9.3 6.9
  Elongation, % 750 450 420 150
D624 Tear Die B, ppi 95 40 150  70
  kN/m 16.7 7.0 26.3 12.3
  Specific Gravity 1.10 1.10±.03 1.22 1.21±.03
D-926 Williams Plasticity 170 125-225 440 350-550

A = Typical Physical Properties, B = Momentive Performance Materials Quality Control Specs.

Typical Properties of Cured Compound

Formulation of Test Specimens 100 100    
SE6035     100 100
SE6075        
Curing Agent        
Bis (2.4 Dichlorobenzoyl) Peroxide level (50% active) 1.2   1.2  
Cure Conditions 10 min. at 142°C (287°F)2,5 Dimethyl-2,5 Di(t-butyl peroxy)Hexane 100%
active level
Cure Conditions 10 min. at 177°C (350°F)
  0.4   0.4
ASTM
REFERENCE METHOD
PROPERTY

TYPICAL VALUES

  Press Cure        
D-2240 Hardness, Shore A 33 32 65  68
D-412 Tensile Strength, psi (MPa) 1100 (7.6) 1320 (9.1) 1440 (9.9) 1350 (9.3)
D-412 Elongation, % 820 750 520 450
D-624 Tear Resistance, Die B psi (kN/m) 75 (13.2) 95 (16.7) 150 (26.3) 150 (26.3)
D-395 Compression Set %
22 hrs. @ 177°C (350°F)
35 29 35 26
  Heat Aging 70 hrs. at 225°C (437°F)        
D-573 Hardness, Shore A 5 10 11 8
  Tensile Strength, psi 0 -38 -34 -26
  Elongation, % -25 -52 -45  -40
  Oil ResistanceASTM#1
70 hrs. @ 149°C (300°F)
       
D-471 Shore A, points change -8 -6 -7 -5
  Tensile Strength, % change -20 -30 -25 -30
  Elongation, % change -20 -15 -25 -35
  Volume, % change 5 5 6 5
  ASTM#3
70 hrs. @ 149°C (300°F)
       
  Volume, % change 50 50 40 45
  Water Resistance 70 hrs. @ 100°C (212°F)        
D-471 Shore A, points change 0 0 0 0
  Volume, % change -1 0 0 -1

ADDITIVES

SILPLUS Elastomeric System includes additives to modify the processing and/or cured physical properties of the compounding bases.

Additives When to Use
SE6916HA Heat Aging Stabilizer Masterbatch to be used at 1.0 part per 100 of compounding base or blends thereof to improve that heat age resistance. See SE 6916HA data    sheet.
SE6921FR Flame Retardant Containing Masterbatch to be used with compounding bases or blends thereof to improve the flame retardance of the compositions. See SE6921FR data sheet.
SE6925PA Process Aid Masterbatch to be used to adjust the plasticity of compounding bases or blends thereof.
SE6910MO Magnesium Oxide Masterbatch can be          used at 1.0 parts per 100 of compounding     base to eliminate the need for post cure          when Bis (2,4 Dichlorobenzoyl) peroxide is    used. It may also be used at the 1.0 to 3.0   level to impart improved oil resistance.
SE6910TM Tensile Strength Enhancer can be used at      1.0 parts per 100 of compounding base to      optimize tensile strength when extending          fillers are used.
Formulation of Test Specimens        
SE6035  66 34 66 34
SE6075 34 66 34 66
Curing Agents        
Bis (2.4 Dichlorobenzoyl)Peroxide (50% active) (DCBP-50) 1.2 1.2    
Cure Conditions 10 min. @ 142°C (287°F)
2.5 Dimethyl-2.5 Di(t-butylperoxy) Hexane 50% active (DBPH-50)
    0.8 0.8
Cure Conditions 10 min. @ 177°C (350°F)        
ASTM
REFERENCE    METHOD
PROPERTY        
  Press Cure        
D-2240 Hardness, Durometer A 50 63 47 60
D-412 Tensile Strength, psi (MPa) 1290 (8.9) 1300 (9.0) 1300 (9.0) 1320 (9.1)
D-412 Elongation, % 400 350 450 350
D-624 Tear Resistance, Die B, psi (Kn/m) 85 (14.9) 95 (16.7)  90 (15.8)  100 (17.4)
D-395 Compression Set, %  
22 hrs. @ 177°C (350°F)
41 46 25 22
  Heat Aging: 70 hrs. @ 225°C (437°F)        
 D-573 Hardness, Durometer A  5 8 4 7
  Tensile Strength, % change -26 -22 -31 -34
  Elongation, % change -37 -45 -31   -41
Extending Filler Profile of
SE6035 and SE6075
             
Formulation of Test Specimens              
SE6035 100 100 100 100 100    
SE6075           100 100
5 Micron Minusil (Extending filler) 25 50 75 100 150 25 50
Bis (2.4 Dichlorobenzoyl) Peroxide (50% active) (DCBP-50)
Cure Conditions 10 min. @ 142°C (287°F)
1.2 1.2 1.2 1.2 1.2 1.2 1.2
ASTM
REFERENCE
METHOD
PROPERTY              
  Press Cure              
D-2240 Hardness, Durometer A  43  47 53 58 70 77 84
D-412 Tensile Strength, psi (MPa) 1000(6.9) 850(5.9) 760(5.2) 750(5.2) 700(4.8) 1230(8.5) 1175(8.1)
D-412 Elongation, % 625 550 520 400 150 190 130
D-624 Tear Resistance
Die B,ppi (Kn/m)
90(15.8) 85(14.9) 80(14.0) 90(15.8) 75(13.1) 80(14.0) 90(15.0)
D-395 Compression Set, %
22hrs. @ 177°C (350°F)
61 54 51 54  63  41 49
  Heat Aging: 70 hrs. @ 225°C (437°F)              
D-573 Hardness, Durometer A 2 4 4 6 9 6 5
  Tensile Strength, % change -5 3 4 0 -7  -21 -17
  Elongation, % change -40 -51 -58 -60 -35 -26 -37

Extending Filler Profile of SE6035 and SE6075

Formulation of Test Specimens              
SE6035 100 100 100 100 100    
SE6075           100 100
5 Micron Minusil  (Extending filler) 25 50 75 100 150 25 50
2.5 Dimethyl 2.5 (di(t-butylperoxy) Hexane 50% active (DBPH-50)
Curing Conditions 10 min. @ 177°C (350°F)
0.8 0.8 0.8 0.8  0.8 0.8 0.8
ASTM
REFERENCE   
METHOD
PROPERTY              
  Press Cure              
D-2240 Hardness, Durometer A 38 42 50 56 66 69  81
D-412  Tensile Strength, psi 1065(7.3) 950(6.6) 775(5.3) 730(5.0) 700(4.8)  1230(8.5) 1150(7.9)
D-412  Elongation,% 780  690 650 500 210 230 160
D-624  Tear Resistance 
Die B, ppi (Kn/M)
90(15.8) 90(15.8)  85(14.9) 95(16.7) 75(13.2) 100(17.5) 110(19.3)
D-395 Compression set, %
22 hrs. @ 177°C(350°F)
37 36 35 38 42 35 27
  Heat Aging: 70 hrs. @ 225°C (437°F)              
D-573 Hardness, Durometer A   4 4 5 5 9 6 4
  Tensile Strength, % change -12 6 14 19 -4 -13  7
  Elongation, % change -30 -28 -50 -45 -30 -26 -27

Typical Curing Agents

Peroxides Commercial
Grades
Form % Typical Molding Temperatures Recommended
Use
Bis (2,4 Di- chlorobenzoyl Peroxide DCBP-50 Cadox TS-501 or Luperco CST2 50% Active Paste 1.0   220°F-270°F
(104°C - 132°C)
Hot Air
Vulcanization
Benzoyl Peroxide BP-50  Cadox BS1 or  
Luperco AST2
50% Active Paste 0.8 240°F - 280°F  (116°C - 138°C) Molding,   Steam Curing
DiCumyl Peroxide DiCup 40C3 40% Active Powder 1.0 310°F - 360°F 
(154°C - 177°C) 
Molding Thick Sections, Bonding,  Steam Curing
2,5 DiMethyl- 2,5 Di(t-butyl   Peroxy) Hexane Varox4 or 
Luperco 101-XL2
Luperol 1012
50%
Active Powder
100% Active
Liquid
0.8

0.4

  330°F - 360°F   (166°C - 182°C) Molding Thick  Sections, Bonding,
Steam Curing

CURING AGENT SUPPLIERS
1. Trademark of and available from Noury Chemical Corp., Route 78, Burt, New York 14028
2. Trademark of and available from Lucidol Division, Pennwalt Corporation, 1740 Military Road, Buffalo, New York 14240
3. Trademark of and available from Hercules Powder Company, 910 Market Street, Wilmington, Delaware 19899
4. Trademark of and available from R.T. Vanderbilt Company, 30 Winfield Street, E. Norwalk, Connecticut 06855

FABRICATION

Various organic peroxides will vulcanize the compounding bases. Fabricators should make their selection of curing agent on the basis of method of fabrication, desired properties, and safety considerations.

The optimum cure cycle will depend on the method of processing used and the physical dimensions of the vulcanized product. Specific applications will require the use of air oven post cures.

HANDLING AND SAFETY

Material Safety Data Sheets are available upon request from Momentive Performance Materials. Similar information for solvents and other chemicals used with Momentive Performance Materials products should be obtained from your suppliers. When solvents are used, proper safety precautions must be observed.

*CAUTION: 2.4 Dichloro benzoyl peroxide (*Cadox®TS-50) catalyst (Cas#133-14-2) may generate polychlorinated biphenyls during the curing process. Consult Federal REgulations 40 CFR 761 for inadvertent PCB generation regulations.

STORAGE WARRANTY PERIOD

The warranty period is 8 months from date of shipment from Momentive Performance Materials if stored in the original unopened container at 35°C (95°F).

AVAILABILITY

Momentive Performance Materials products may be ordered from Momentive Performance Materials, Waterford, NY 12188, the Momentive Performance Materials sales office nearest you or where appropriate, an authorized Momentive Performance Materials product distributor.

GOVERNMENT REQUIREMENTS

Prior to considering use of a Momentive Performance Materials' product in fulfilling any government requirement, please contact the Government and Trade Compliance office at 413-448-4624.

CDS4802

LEGAL DISCLAIMER

THE MATERIALS, PRODUCTS AND SERVICES OF MOMENTIVE PERFORMANCE MATERIALS, THEIR SUBSIDIARIES OR AFFILIATES (THE “SUPPLIER”), ARE SOLD SUBJECT TO THE SUPPLIER’S STANDARD CONDITIONS OF SALE, WHICH ARE INCLUDED IN APPLICABLE SALES AGREEMENTS, PRINTED ON THE BACK OF ACKNOWLEDGMENTS AND INVOICES, OR AVAILABLE UPON REQUEST. ALTHOUGH THE INFORMATION, RECOMMENDATIONS OR ADVICE CONTAINED HEREIN IS GIVEN IN GOOD FAITH, SUPPLIER MAKES NO WARRANTY OR GUARANTEE, EXPRESS OR IMPLIED, (I) THAT THE RESULTS DESCRIBED HEREIN WILL BE OBTAINED UNDER END-USE CONDITIONS, OR (II) AS TO THE EFFECTIVENESS OR SAFETY OF ANY DESIGN INCORPORATING SUPPLIER’S MATERIALS, PRODUCTS, SERVICES, RECOMMENDATIONS OR ADVICE. NOTHING IN THIS OR ANY OTHER DOCUMENT SHALL ALTER, VARY, SUPERSEDE OR OPERATE AS A WAIVER OF ANY OF THE SUPPLIER’S STANDARD CONDITIONS OF SALE.

Each user bears the full responsibility for making its own determination as to the suitability of Supplier’s materials, products, services, recommendations or advice for its own particular purpose. Each user must identify and perform tests and analyses sufficient to assure it that its finished parts will be safe and suitable for use under end-use conditions. Because actual use of products by the user is beyond the control of Supplier, such use is within the exclusive responsibility of the user, and Supplier cannot be held responsible for any loss incurred through incorrect or faulty use of the products. Further, no statement contained herein concerning a possible or suggested use of any material, product, service or design is intended or should be construed to grant any license under any patent or other intellectual property right of Supplier or any of its subsidiaries or affiliated companies, or as a recommendation for the use of such material, product, service or design in the infringement of any patent or other intellectual property right.