Datasheet for LIM6071/America/eng, revision no 1

LIM® 6071

Liquid Silicone Rubber

Product Description

LIM6071 is the next generation in 70-durometer liquid silicone rubber. It is a two-component product formulated for use in liquid injection molding to produce high performance parts. It is clear, but easily pigmentable with Momentive Performance Materials masterbatch colors.

The combination of excellent tear strength and very high tensile strength makes this product suitable for a wide variety of applications. Mechanical parts such as connector inserts, seals, flexible mounts, and valve parts can be made readily from LIM6071 liquid silicone rubber.

Other possible applications include sports goggles and masks, health care profiles, camera parts and metal roll coatings.

LIM6071 offers convenient 1:1 mix ratio, high tear strength, and easy release from molds. Cure time is rapid, generally 10 to 40 seconds at 150C (300F) to 205C (400F) depending upon part size, configuration, and molding temperature. LIM6071 is characterized as having high Bayshore resilience and excellent compression set.

Key Performance Properties

High clarity for excellent visibility
Excellent tear strength
Convenient 1:1 mix ratio for use with automatic equipment
Rapid cure time: 10 to 40 seconds depending upon part size, configuration and molding temperature
Wide range of molding temperatures: 150C (302F) to 232C (450F)
Excellent release from metal molds
High Bayshore resilience

Typical Product Data

Uncured Properties	LIM6071A Base	LIM6071B Curing Agent
Color	Clear	Clear
Specific Gravity, gm/cc	1.12	1.12
Application Rate, gm/min.	70	70

Mixed A + B	LIM6071 A + B
Cure Rate: (Monsanto Rheometer)MDR2000 @ 177C (350F)
Torque, max, in/lbs.	36.3
T02, seconds	4
Peak Rate, in/lbs./min	206
T90, seconds	50
Cured Properties
PRESS CURE 17 MINUTES @ 177C (350F)
Hardness, Shore A	70
Tensile Strength, psi (MPa)	1150 (7.9)
Elongation, %	370
Tear Strength Die B, ppi (KN/M)	230 (40.4)
Tensile Modulus, 100% psi (MPa)	430 (3.0)
Compression Set %
22 hours @ 177C (350F)	40
Bayshore %	65
POST BAKE 4 HOURS 205C (400F)
Hardness, Shore A	70
Elongation, %	330
Tear Strength Die B, ppi (KN/M)	210 (36.8)
Tensile Modulus,100% psi (MPa)	460 (3.2)
Bayshore %	66

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.

AGENCY STATUS

LIM6071 may be safely used as a food contact surface of articles intended for repeated use in producing or holding food, in accordance with the following prescribed conditions:

1) Articles are manufactured in accordance with Good Manufacturing Practice
2) It is thoroughly cleansed prior to its first use

SE21CFR177 2600 for details of the extraction limitations and other requirements.

LIM6071 is designed, manufactured and sold for industrial use only. Prior to use for any application other than an industrial use, the user has sole responsibility for determining the suitability of these products for any such application. This silicone rubber product is not designed for permanent implantation into the human body.

Momentive Performance Materials has on file data from representative samples of LIM6071 which indicate that, when properly compounded and cured, these compounds meet extractive limitations prescribed by FDA for use in rubber articles in repeated contact with dray, aqueous, acid and alcoholic foods. Tests according to BGA and EC recommendations indicate compliance with extractive limitations for aqueous, acid and alcoholic foods and beverages. Extractives have been evaluated at reflux temperatures but not under autoclave conditions. The user should be cautioned, however, to evaluate the product under his/her specific conditions to use.

LIM6071 has met the requirements of USP Class VI testing. 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.

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.

Storage and Warranty Period

The warranty period is six months from the date of shipment from Momentive Performance Materials if stored in the original unopened container at 25°C (77°F).

Availability

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 Requirement

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.

®LIM is a registered trademark of Momentive Performance Materials.

CDS4875

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.