Ultra Tufel ®  Silicone Rubber 96006 Series
High Clarity Low Volatile Grades for Extrusion/Calendering


Ultra Tufel ® Silicone Rubber Compounds 96406, 96506, 96606 and 96706 are 40-70 durometer high clarity low volatile fast-cure addition cured silicone elastomers for extrusion and calendering. They combine all the productivity and processing advantages of Tufel II with the added benefit of extreme high clarity. They may be used by themselves or blended to intermediate durometers. Applications include extruded profiles, tubing and calendered sheets requiring “water clear” appearance.

  • High Clarity, Low Haze, Non-Yellowing
  • LV Bases Minimize Porosity and Post cure
  • Totally Peroxide-Free Cure System
  • Broad Processing Window
  • High Output Rates
  • Superior Mixed Shelf Life
  • High Tear Strength
  • Tight Surface Cure

Typical Characteristics Of Uncured Ultra Tufel ® Silicone Rubber - 96006 Series

Properties 96406   96506 96606 96706
Specific Gravity 1.10 1.14 1.17 1.22
Appearance Clear Clear Clear Clear
Polymer Classification
(ASTM D-1418)		 VMQ VMQ  VMQ VMQ

Typical Rheological Profile - Monsanto ODR
with 3° ARC @ 150C (300F)

Minimum Viscosity 1-6 4-10 4-12 4-12
T1, Minutes 0.1 - 0.4 0.1 - 0.3 0.1 - 0.4 0.2 - 0.4
7 Min Torque (LB/IN) 33-48 38-53 45-65 60-90

Typical Physical Properties of Ultra Tufel ® Silicone Rubber - 96006 Series                    
ASTM Method Press Cure - 10 Minutes @ 177C (350F)

    96406 96506 96606 96706
D-2240 Hardness, Durometer A 40 50 64 72
D-412 Tensile Strength, psi 1380 1480 1280 1350
  MPa 9.5 10.2 8.8 9.3
D-412 Elongation, % 900 920 750 650
D-624 Tear Resistance, Die B, ppi 240 275 280 330
  KN/M 42.1 48.2 49.1 57.9
           
D-412 Tensile Modulus @ 100%, psi 140 200 350 540
  MPa 1.0 1.4 2.4 3.7

Post Cure 2 Hours @ 177C (350°F)

    96406 96506 96606 96706
D-2240 Hardness, Durometer A 44 55 64 72
D-412 Tensile Strength, psi 1450 1475 1280 1280
  MPa 10.0 10.2 8.8 8.8
D-412 Elongation, % 820 840 725 640
D-624 Tear Resistance, Die B, ppi 250 300 300 320
  KN/M 43.9 52.6 52.6 56.1
D-412 Tensile Modulus @ 100%, psi 165 230 400 550
  MPa 1.1 1.6 2.8 3.8

Clarity Testing:    Done Using Gardner Colorimeter on Post Cured ASTM Slabs
(within 1 hour from oven removal)

Physical Test

% Transmittance 86 87 88 88
Yellow Index 8 7 6 6
% Haze 20 15 15 15

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

FDA regulation 21 CFR 177.2600 relates to rubber articles intended for repeated food contact. The composition of products 96406, 96506, 96606 and 96706 complies with this regulation. Momentive Performance Materials does not however, have data on file which indicates that this product when cured and properly postbaked will meet the extractive limitations of 21 CFR 177.2600 for repeated use with dry, aqueous, and fatty foods. It is the manufacturer’s responsibility to evaluate the level of extractives of this product under their specific curing and post-baking conditions.

USP CLASS VI STATUS

Ultra Tufel Silicone Rubber Compounds 96406, 96506, 96606 and 96706 have met the requirements of USP Class VI testing. Sample preparation for Class VI testing was a 2-hour at 177C (350F) post cure. Compliance is based on a single batch which is considered representative of production. It is the responsibility of the end-user to verify compliance of the final fabricated product. Questions on the above testing should be directed to the Product Regulatory Department of Momentive Performance Materials Silicones.



CA-6 (Curing Agent)

CA-6 curing agent reacts with the crosslinking agent in base materials to form cured Ultra Tufel Silicone Rubber Compounds. A sufficient quantity is provided with the base material in the original container, but additional quantities may be utilized for potential increase in the cure speed.

It is recommended that the CA-6 curing agent be stored in the freezer for optimum shelf life. To decrease the cure speed, CA-6 curing agent may be blended with CA-5 curing agent. Both CA-6 and CA-5 curing agents are available as individual components.

FRESHENING PROCEDURES

The appropriate base compound should be thoroughly freshened on a two roll rubber mill before the addition of the CA-6 curing agent. For optimum blending, freshen both the base compound and the curing agent and then work the curing agent into the base on the mill. A minimum of ten turns on the mill should ensure an adequate blend. The bases may be blended together to achieve intermediate durometers. Start by milling the higher durometer base and then adding the lower durometer base to the mill. The final step is the addition of the appropriate curing agent to the blended bases.

Addition of fillers and process aids may cause cure variation and change in the typical property profile and clarity.

The mill rolls should be chilled to keep the mill and compounds as cool as possible while mixing, under 30C (86F). Crosslinking is initiated at higher temperatures. After addition of the curing agent, structure will begin. Structure is dependent upon time, process and storage temperature and the viscosity of the compounds. With the CA-6 curing agent, structuring will develop in 4-8 hours unless the blended compound is covered tightly with polyethylene to eliminate exposure to the atmosphere. Structure will be slowed significantly by placing the catalyzed mixture in a freezer. If the mixture has structured, it can be re-milled before fabrication to reduce the degree of structure. CA-6 curing agent should be stored in the freezer prior to mixing with base compounds.

Extra care should be taken to avoid contact with low activation temperature peroxide catalysts which may cause hazing and incomplete cure.

PACKAGING - Mixing Ratio

Ultra Tufel Silicone Rubber - 96006 Series grades are supplied with the base (99 parts) and curing agent (1 part) in a single container.

Blending Ratio is: Base (99 parts) to Curing Agent (1 part).

 

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.

The warranty period is 3 months from date of shipment from Momentive Performance Materials if stored in the original unopened container at 2-10C (35-50F). Once catalyzed, the material should be covered tightly with polyethylene to limit exposure to the atmosphere.


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.


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


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.