Pressure Sensitive Adhesive Gasket Material for Adhesive Backed or Self Stick Gaskets

Pressure Sensitive Adhesive Gaskets

Pressure Sensitive Adhesive (PSA) is commonly used throughout gasket applications. PSA can be used from a temporary means of holding a product in place during assembly to a more long-term permanent manner in which to bond 1 item to another. The most common types of adhesives used in gasketing applications are acrylic based and rubber based products. These products can be offered in "transfer" or "double coated" options.

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Benefits of Pressure Sensitive Adhesive Gasket Material

PSA is commonly applied to gasket material. In doing so, the exposed side of the PSA is applied to the gasket material and then run through rollers that apply a nominal amount of pressure to bond the 2 together.

PSA is supplied and used in 2 different forms, including “transfer” and “double-sided” products. The amount of adhesive varies depending on the product. Most commonly used PSA’s have .001” - .005” of adhesive. The specific adhesive being used will vary in adhesion strength, dwell time, etc.

Transfer Adhesive Backed Gaskets

Transfer adhesives have 1 layer of adhesive on a release liner. Transfer adhesives are the most general-purpose and commonly used adhesives.

The Build-up of commonly used PSA's Transfer Adhesive:

Adhesive - .002"
Release Liner - .005"

Double-Sided Adhesive Gaskets

Double-sided adhesives have 2 different layers of adhesive applied to opposite sides of a film carrier (ie .001” thick PET). This added carrier allows for additional stability during application and use. Using a double-sided adhesive also allows different types of adhesive and different thicknesses of adhesive on each side of the carrier. This can be beneficial depending on the end application.

Adhesive - .002"
Carrier - .001"
Adhesive - .003"
Release Liner - .005"

The common characteristics of both Acrylic-based and Rubber-based PSA's are:

	Acrylic based	Rubber based
	Moderate initial adhesion (gradual adhesion buildup)	High initial adhesion
	High shear strength	Moderate shear strength
	High temperature resistance	Moderate temperature resistance
	Excellent solvent resistance	Moderate temperature resistance
	Excellent UV resistance	Fair UV resistance
	Excellent durability	Moderate durability

What is an Adhesive Backed Gasket?

Adhesive backed gaskets, also called “peel and stick” or “press on” gaskets are made with an adhesive backing protected by a release liner. They are primarily used to hold gaskets in place during installation. However, depending on your application that can assist with sealing or structural purposes. Some of the most popular self-adhesive gasket applications are for automotive foam pieces, protecting electrical enclosures, assisting with sealing appliances and fortifying openings on marine or aerospace equipment.

Gaskets backed with pressure sensitive adhesive are exceptionally helpful for:

Preventing movement: The gasket needs to remain in a specific position during assembly.
Difficult installations: The gasket is large, difficult to fit, or being installed on a non-horizontal surface.
Quick installation is critical: For safety reasons, the gasket must be fitted quickly.
Sealing removable panels: The gasket needs to stay in place when a panel is removed.