ELASTOSIL® R Plus 4350/55

Identification & Functionality

Additives Included

Heat Stabilizer

Chemical Family

Silicones

Polymer Name

Silicone Elastomer

Technologies

Elastomers

Product Families

Elastomers — Specialty Elastomers

Silicone Elastomers

Features & Benefits

Labeling Claims

Food Contact Acceptable

Materials Features

Fast Curing,

Food Contact Acceptable,

Good Mechanical Properties,

Good Thermal Stability,

Heat Resistance,

Heat Stabilized,

High Consistency,

High Resilience

Specific Features

• Addition Curing
• Food-contact
• Heat resistant
• High rebound resilience
• Two-component
• Ultra-low compression set

Applications & Uses

Cure Method

Chemical Cure

Plastics & Elastomers End Uses

Household Goods

Plastics & Elastomers Processing Methods

Extrusion

Applications

• Dairy Applications
• Household Applications
• Profiles & Tubings

Application Details

ELASTOSIL® R plus 4350/55 is suited for the manufacture of extruded articles exhibiting excellent heat stability. Properly cured and post-cured vulcanizates of ELASTOSIL® R plus 4350/55 can be used for food contact applications and are suitable for use under the Recommendation "XV. Silicones" of the BfR and FDA 21 CFR §177.2600 "Rubber Articles Intended for Repeated Use" considering any given limitations on extractable and volatile substances.

Processing

• ELASTOSIL® R plus 4350 may not be cured with peroxides but only with the platinum catalyst batch ELASTOSIL® AUX Batch PT 1.
• ELASTOSIL® R plus 4350/55 and ELASTOSIL® AUX Batch PT 1 are mixed homogeneously on a roll mill in a ratio of 100:1.3 A higher catalyst dosage results in a faster curing but a reduced pot life.
• Care must be taken to keep the compound cool during mixing. A homogeneous incorporation is a must, but the temperature of the rubber should not exceed 30 °C, otherwise there is a risk of scorch.
• The cross linking reaction starts as soon as ELASTOSIL® AUX Batch PT 1 has been added. The rate and degree of crosslinking is dependent on storage time and temperature. At 23 °C the pot life is approximately 24 h. This can be extended by storing the catalyzed mixture at lower temperature.

Properties

Cured Properties

	Value	Units	Test Method / Conditions
Compression Set (at 22 hours, 175°C)	10	%	DIN ISO 815-1 type B method A
Density	1.13	g/cm³	DIN EN ISO 1183-1 A
Elongation (at break)	350	%	ISO 37 Type 1
Rebound Resilience	60	%	ISO 4662
Shore Hardness A	58	—	DIN ISO 48-4
Tear Strength	18	N/mm	ASTM D 624 B
Tensile Strength	8.2	N/mm²	ISO 37 Type 1

Properties

Cured articles made of ELASTOSIL® R plus 4350/55 exhibit excellent heat stability. Thanks to addition cure, the vulcanization reaction is significantly faster compared to peroxide curing materials. No peroxide decomposition products are formed during vulcanization. At service temperatures above approx. 180°C the addition of heat stabilizers is recommended.

Note

Cure conditions: 1,3% ELASTOSIL® AUX PT 1, 15 min / 165°C in press, post-cure 4 h / 200°C.

Regulatory & Compliance

Certifications & Compliance

BfR Recommendation,

EC No.1907/2006,

FDA 21 CFR 177.2600,

REACH Exempt (Europe)

Chemical Inventories

AIIC (Australia),

DSL (Canada),

ENCS (Japan),

IECSC (China),

PICCS (Phillipines),

TCSI (Taiwan),

TSCA (USA)

Packaging & Availability

Country Availability

Afghanistan,

Albania,

Algeria,

American Samoa,

Andorra,

Angola,

Anguilla,

Antigua And Barbuda,

Argentina,

Armenia,

Aruba,

Australia,

Austria,

Azerbaijan,

Bahamas,

Bahrain,

Bangladesh,

Barbados,

Belarus,

Belgium,

Belize,

Benin,

Bermuda,

Bhutan,

Bolivia,

Bosnia and Herzegovina,

Botswana,

Bouvet Island,

Brazil,

British Indian Ocean Territory,

Brunei Darussalam,

Bulgaria,

Burkina Faso,

Burundi,

Cambodia,

Cameroon,

Canada,

Cape Verde,

Cayman Islands,

Central African Republic,

Chad,

Chile,

China (Mainland),

Christmas Island,

Cocos Islands,

Colombia,

Comoros,

Congo,

Cook Islands,

Costa Rica,

Cote D'Ivoire,

Croatia,

Cuba,

Cyprus,

Czech Republic,

Denmark,

Djibouti,

Dominica,

Dominican Republic,

Ecuador,

Egypt,

El Salvador,

Equatorial Guinea,

Eritrea,

Estonia,

Ethiopia,

Falkland Islands,

Faroe Islands,

Fiji,

Finland,

France,

French Guiana,

French Polynesia,

Gabon,

Gambia,

Georgia,

Germany,

Ghana,

Gibraltar,

Greece,

Greenland,

Grenada,

Guadeloupe,

Guam,

Guatemala,

Guinea,

Guinea-Bissau,

Guyana,

Haiti,

Heard Island and McDonald Islands,

Honduras,

Hong Kong,

Hungary,

Iceland,

India,

Indonesia,

Iran,

Iraq,

Ireland,

Israel,

Italy,

Jamaica,

Japan,

Jordan,

Kazakhstan,

Kenya,

Kiribati,

Korea,

Kuwait,

Kyrgyzstan,

Laos,

Latvia,

Lebanon,

Lesotho,

Liberia,

Libyan Arab Jamahiriya,

Liechtenstein,

Lithuania,

Luxembourg,

Macao,

Macedonia,

Madagascar,

Malawi,

Malaysia,

Maldives,

Mali,

Malta,

Marshall Islands,

Martinique,

Mauritania,

Mauritius,

Mayotte,

Mexico,

Micronesia,

Moldova,

Monaco,

Mongolia,

Montenegro,

Montserrat,

Morocco,

Mozambique,

Myanmar,

Namibia,

Nauru,

Nepal,

Netherlands,

Netherlands Antilles,

New Caledonia,

New Zealand,

Nicaragua,

Niger,

Nigeria,

Niue,

Norfolk Island,

North Corea,

Northern Mariana Islands,

Norway,

Oman,

Pakistan,

Palau,

Palestinian Territory,

Panama,

Papua New Guinea,

Paraguay,

Peru,

Philippines,

Pitcairn,

Poland,

Portugal,

Puerto Rico,

Qatar,

Reunion,

Romania,

Russia,

Rwanda,

Saint Helena,

Saint Kitts and Nevis,

Saint Lucia,

Saint Pierre And Miquelon,

Saint Vincent And The Grenadines,

Samoa,

San Marino,

Sao Tome and Principe,

Saudi Arabia,

Senegal,

Serbia,

Seychelles,

Sierra Leone,

Singapore,

Slovakia,

Slovenia,

Solomon Islands,

Somalia,

South Africa,

Spain,

Sri Lanka,

Sudan,

Suriname,

Svalbard And Jan Mayen,

Swaziland,

Sweden,

Switzerland,

Syrian Arab Republic,

Taiwan,

Tajikistan,

Tanzania,

Thailand,

Togo,

Tokelau,

Tonga,

Trinidad And Tobago,

Tunisia,

Turkey,

Turkmenistan,

Turks And Caicos Islands,

Tuvalu,

USA,

Uganda,

Ukraine,

United Arab Emirates,

United Kingdom,

United States Minor Outlying Islands,

Uruguay,

Uzbekistan,

Vanuatu,

Vatican City,

Venezuela,

Vietnam,

Virgin Islands, British,

Virgin Islands, U.S.,

Wallis And Futuna,

Western Sahara,

Yemen,

Zambia,

Zimbabwe

Regional Availability

• Africa
• Asia
• Europe
• Latin America
• Middle East
• North America
• Oceania

Packaging Information

This product is available in 20 kg and 540 kg cardboard packaging.

Storage & Handling

Storage Information

Please store the cardboard boxes in a dry and cool place. Once opened, cardboard boxes should always be resealed after use to avoid any contamination and to prevent the platinum catalyst from being poisoned by amines, sulfur or phosphorus compounds.