Tuesday, February 02, 2010

UL94 V0 Flame Retardant Silicone Sponge Rubber

St. Gobain’s R-10400-M flame retardant silicone sponge is a unique expanded silicone sheet product. It has similar mechanical properties as standard silicone sponge rubber but with flame resistance, R-10400 holds an aggressive UL94 V0 flame rating. Silicone is a naturally heat resistant rubber, however without enhanced chemistry it is capable of burning in the presence of a flame. R-10400 may be used similarly to standard silicone sponge products such as enclosure gaskets, soft gasket, vibration dampening, environmental gaskets, and water sealing but also for application such as military and electronics that require a UL94 V0 flame rating or flame resistance.



Description: Flame Resistant Closed Cell Silicone Sponge Rubber
Put up: Silicone Roll or Silicone Sheet
Temperature Range: 100 – 500°F (-73 – 260°C)
Force Deflection: 10psi (@ room temp)
Compression Set: 10% (22hrs @ 212°F)
Thermal: Thermal Insulator, .02 W/m-K
Electrical: Electrical Insulator, Volume Resistivity 8E15 Ohm-cm
Flame Rating: Flame Retardant Rubber, UL94 V0
FDA Rated: 21 CFR 177.2600


Other properties such as UV resistant and a wide functional temperature range, makes R-10400 an ideal product for outdoor gasket and electronic enclosure gasket applications, where performance is paramount. Stockwell offers a wide range of adhesive backings (peel and stick) for ease of installation.

For more information on R-10400 flame resistant silicone sponge or other UL94 flame rated products, please call (215) 335-3005 or email service@stockwell.com.

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Monday, December 21, 2009

Silicone Materials Selection Guide Updated

Stockwell Elastomerics updated Silicone Materials Selection Guide - a comprehensive guide offering insight on the properties and benefits of using silicone for gasketing, sealing, and cushioning applications. This guide details Stockwell Elastomerics’ silicone rubber materials offerings in closed cell silicone sponge, cast silicone foams, gum based solid silicone and liquid based solid silicone. In addition, many common pressure sensitive adhesives offerings and product-enhancing surface lamination options for silicone foam and silicone sponge rubber are listed. This updated Silicone Materials Selection Guide is a quick “go-to” reference for engineers and designers. Silicone has become the material of choice by engineers for critical gasketing and cushioning applications. This can be attributed to its wide operating temperature range, resistance to compression set (good memory), UV resistance and long life.

Stockwell Elastomerics offers fast-turn prototyping for most silicone materials, often utilizing its extensive water jet cutting capabilities to produce cut to size parts from customer supplied CAD files.

To Request a Copy of the Silicone Materials Selection Guide
Download it directly from http://www.Stockwell.com/SiliconeGuide or contact Stockwell Elastomerics by phone (215) 335-3005 or email service@stockwell.com to request a printed copy.

Stockwell Elastomerics’ core competence is the fabrication and molding of silicone rubber and similar high performance elastomeric materials. Stockwell’s in-house capabilities include water jet cutting, custom molding, die cutting, and adhesive lamination. For more information on Stockwell Elastomerics’ offerings in silicone rubber, silicone sheet, molding and fabrication capabilities call (215-335-3005) or email service@stockwell.com.

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Friday, August 28, 2009

Silicone Foam - Waterjet Cut & Foam Assembly



One of the more interesting silicone foam parts Stockwell has made was a thermal insulating jacket for an electronic device. The material used was HT-800 silicone foam, the foam’s cellular structure gives the material insulating properties. HT800 is a UL94 V0 flame rated foam and also has electrically insulating properties.

The part shown below was constructed from standard “off the shelf” thicknesses of HT-800, though a few thicker layers required laminating. A variety of shapes were waterjet cut and hand assembled.


Stockwell has a dedicated Production Cell for Assembly where silicone foam, silicone sponge, urethane foam and EMI materials are bonded, lamininated and/or assembled. For more information on Stockwell Elastomerics assembly capabilities other silicone rubber, closed cell sponge, & Poron applications, please contact Stockwell at (215) 335-3005 or visit our website at stockwell.com.

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Monday, October 27, 2008

Why Stockwell is a Sensible Strategic Partner in this Rough Economy



Stockwell Elastomerics’ business model has been centered around low to mid volume runs, quality and speed. For companies practicing Lean Manufacturing this business model makes good sense. Stockwell maintains stock in its core product lines such as Silicone Foams, Silicone Sponge, Solid Silicone, Poron, Thermal products, EMI gasketing materials, and Pressure Sensitive Adhesives (PSA). This stock along with quick changeovers and semi-automated production equipment (Die Cutting, Water Jet Cutting, Slitting and Laminating) allows for fast turns on low to mid-volume runs.


In the current economic climate, overproduction and inventory are much more of a liability than they were a year ago. With some customers relying on lines of credit and banks being more cautious, the risk of orders being cancelled and OEM’s being left holding the bag is much greater. Having a fast turn supplier such as Stockwell who can run smaller batch sizes and still meet long term production needs with scheduled releases allows OEM’s to have less “skin in the game”.

For more information on how Stockwell can meet your production needs, please contact us at 215-335-3005, service@stockwell.com or visit our website http://www.stockwell.com/.

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Monday, October 29, 2007

Silicone Gasket

Stockwell carries a wide range of materials so that we can meet the demands of most application. Over the years silicone has grown to be our core product. We are seeing more and more engineers specifying silicone products into their design because of its unique properties. Today Stockwell keeps in stock sheet good materials and compounds for custom molded silicone parts.


Key properties:
• High Operating Temperature
• Low Operating Temperature
• UV resistant
• Ozone resistant
• Excellent compression set resistance (rebound)

Silicone offerings include:
• Silicone Foam - that is UL94 V0 rated, excellent for electrical enclosure
• Closed Cell Silicone Sponge - for soft water gaskets such as IP 66, IP 67, and NEMA 4
• Solid Silicone – for water tight seals where higher closure forces are available
• Custom Molded Silicone – standard 20 durometer thru 70 durometer
• Electrically Conductive Silicone – for EMI and ESD gaskets
• Thermally Conductive – for gap pads and press pads for thermal management
• Adhesive Backed Silicone – Stockwell applies pressure sensitive adhesives (acrylic and silicone) to most materials in stock

For more information regarding silicone gaskets or other product offerings, please contact Stockwell at service@stockwell.com or call 215-335-3005.

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