3-8186
Industries Served:
Robotically Dispensed Gasket Materials
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Product
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Technology
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Duro
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Mix Ratio
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Description
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OEM Specs
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3-8186
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DFG
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40
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1:1
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2pt, heat cure, thixotropic, 14 PCF density | Chrysler MS AY570, Ford WSS-M4G356-A2, SAE J18 Grade 2D1 |
| Dow Corning® 3-8186 Thixotropic Foam Dow Corning® 3-8186 Thixotropic Foam is a two-part, medium-density, reduced flow, liquid silicone product supplied as Part A and Part B. When mixed 1:1 by weight, it will expand and cure to form an elastomeric foam with moderate heat (≥ 75°C /167°F) in approximately 10 minutes. |
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Type Primary Uses |
TYPICAL APPLICATIONS |
1 At 23°C (73°F) and 50% relative humidity.
2 CTMs (Corporate Test Methods) correspond to standard ASTM tests in most instances. Copies of CTMs are
available upon request.
3 After curing 10 minutes at 75°C (167°F) and equilibration for 24 hours at 23°C (73°F) and 50% relative humidity.
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HOW TO USE |
Dispensing |
| Cure Inhibition Certain materials, chemicals, curing agents, and plasticizers can inhibit the cure of Dow Corning 3-8186 Thixotropic Foam. The most notable are organo-tin and other organometallic compounds; silicone rubber containing an organo-tin catalyst; sulfur, polysulfides, polysulfones, and other sulfur-containing materials; and unsaturated hydrocarbon plasticizers. Many lubricating oils contain sulfur. If a substrate is questionable with respect to causing inhibition of cure, it is recommended that a small scale compatibility test be run to ascertain suitability. The presence of liquid, uncured product at the interface between the substrate and foam bead indicates inhibition of cure and incompatibility. Handling Precautions Immediately upon mixing Parts A and B of Dow Corning 3-8186 Thixotropic Foam, a chemical reaction takes place that results in the evolution of flammable hydrogen gas. Appropriate caution should be exercised. Adequate ventilation should be provided to prevent localized build-up of hydrogen gas. |
SHIPPING LIMITATIONS Dow Corning 3-8186 Thixotropic Foam, Part B, is a combustible liquid. STORAGE AND SHELF LIFE When stored at or below 32°C (90°F), Dow Corning 3-8186 Thixotropic Foam has a shelf life of 8 months from the date of manufacture. Store material in the original containers. Keep the containers tightly sealed when not in use. PACKAGING Dow Corning 3-8186 Thixotropic Foam, Parts A and B, is available in 5-gal (8.9-L) pail kits with 40 pounds (18.1 kg) of material per pail and 55- gal (208-L) drum kits with 400 pounds (181 kg) of material per drum. PATENT POSITION A method of preparing a foam by mixing Part A and Part B of Dow Corning 3-8186 Thixotropic Foam is claimed in Dow Corning’s U.S. Patents Nos. 4,322,518 and 5,414,023. Dow Corning intends to enforce these patents, but will offer licenses thereunder. If a license is needed, Dow Corning will ship the products in containers which bear a label license and the invoice will include a statement of the royalty due. Alternatively, upon written request, Dow Corning will offer a license agreement at a comparable royalty rate under which the licensee may handle its own accounting of royalties due, regardless of the source of materials. |
| SAFE HANDLING INFORMATION PRODUCT SAFETY INFORMATION REQUIRED FOR SAFE USE IS NOT INCLUDED. BEFORE HANDLING, READ PRODUCT AND MATERIAL SAFETY DATA SHEETS AND CONTAINER LABELS FOR SAFE USE, PHYSICAL AND HEALTH HAZARD INFORMATION. THE MATERIAL SAFETY DATA SHEET IS AVAILABLE FROM YOUR DOW CORNING REPRESENTATIVE, OR DISTRIBUTOR, OR BY WRITING TO DOW CORNING CUSTOMER SERVICE, OR BY CALLING 1-517-496-6000 begin_of_the_skype_highlighting 1-517-496-6000 end_of_the_skype_highlighting. |
LIMITED WARRANTY— PLEASE READ CAREFULLY Dow Corning believes that the information in this publication is an accurate description of the typical characteristics and/or uses of the product or products, but it is your responsibility to thoroughly test the product in your specific application to determine its performance, efficacy and safety. Suggestions of uses should not be taken as inducements to infringe any particular patent. Unless Dow Corning provides you with a specific written warranty of fitness for a particular use, Dow Corning’s sole warranty is that the product or products will meet Dow Corning’s then current sales specifications. DOW CORNING SPECIFICALLY DISCLAIMS ANY OTHER EXPRESS OR IMPLIED WARRANTY, INCLUDING THE WARRANTIES OF MERCHANTABILITY AND OF FITNESS FOR USE. Your exclusive remedy and Dow Corning’s sole liability for breach of warranty is limited to refund of the purchase price or replacement of any product shown to be other than as warranted, and Dow Corning expressly disclaims any liability for incidental or consequential damages. |