Industry News

Silicone Pressure Sensitive Adhesive with Easy to Remove Release Liner Now Available from Stockwell Elastomerics, Inc.

Published on 2010-07-22. Author : SpecialChem

Philadelphia, PA -- Stockwell Elastomerics announces the availability of Stockwell DP-1001 polyimide film supported silicone pressure sensitive adhesive with a new release liner that is easy to remove. Stockwell DP-1001 has a 91# poly-coated opaque white release liner that separates from the silicone adhesive three times faster, improving productivity and reducing scrap due to gaskets damaged during liner removal. The easy to remove release liner also supports production of high volumes of small cushioning pads where time required to remove the release liner was previously prohibitive.

DP1001 with easy peeling Poly Liner

Silicone polymer adhesives are normally provided with a thin, clear PET film release liner, which can be difficult for assemblers to separate and remove from the adhesive backing on die cut gaskets and cushioning pads. The difficulty in separating clear PET film release liners can contribute to damaged gaskets due to incorrect liner removal. This results in production delays and higher manufacturing costs. Some designers and users have been reluctant to specify silicone pressure sensitive adhesives due to past release liner problems. The DP-1001 solves these problems and makes the use of silicone PSAs viable for many gaskets and cushioning pads.

An important additional feature of the DP-1001 product is that this silicone adhesive with polyimide film carrier performs very well in both high temperature and low temperature applications. This wide temperature range capability is another improvement over the PET film carrier's temperature range.

DP1001 with easy peeling Poly Liner

Stockwell Elastomerics' President Bill Stockwell comments, "The DP-1001 with this easy to remove release liner gives our customers a productivity advantage for speed and performance in assembly. And the silicone adhesive with polyimide film carrier combination performs superbly in high temperature uses where others fail."

Technical Details for Stockwell DP-1001

Stockwell DP-1001 offers optimum temperature performance as a pressure sensitive adhesive on silicone rubber gaskets, with continuous service from -100°F to 500°F (-73°C to 260°C) with short term, intermittent service to 600°F (315°C). This highly cross-linked silicone adhesive is well anchored to the polyimide film support to eliminate separation. The polyimide film carrier is translucent amber in color.

Stockwell DP-1001 is intended for silicone gasket and cushioning pad applications where temperature extremes do not permit the use of acrylic adhesive systems. Stockwell Elastomerics laminates DP-1001 onto closed cell silicone sponge, silicone foam and solid silicone rubber. Stockwell Elastomerics can also apply DP-1001 onto molded silicone rubber gaskets with flat surfaces that permit direct lamination.

The polyimide film carrier provides dimensional stability and extends the shelf life of the silicone adhesive system after it is laminated to silicone rubber sheet materials. The film carrier expands engineering options since large adhesive backed gaskets with narrow walls can be installed without losing shape.

Applications/Industries for Stockwell DP-1001 Gaskets and cushioning pads utilizing the new Stockwell DP-1001 polyimide film supported silicone pressure sensitive adhesive with a new release liner are used in many industries and applications, including technology/equipment OEMs such as portable electronic devices, medical diagnostics equipment, analytical instrumentation, ruggedized portable communications and telecommunications equipment. These industries tend to require gaskets that perform over a very broad temperature range.

About Stockwell Elastomerics, Inc.

Stockwell Elastomerics' core competence is the fabrication and molding of silicone rubber and similar high performance elastomers. In-house capabilities include adhesive lamination, custom molding, die cutting, and water jet cutting. Many Stockwell customers take advantage of water jet cutting for fast turn prototypes and initial production. Stockwell Elastomerics, Inc. is ISO9001-2008 registered.

Source: Stockwell Elastomerics

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