Tough-Seal 21 Applications

Tough-Seal 21 Sealant for Thermal Cycling


Tough-Seal Applications Applications for Tough-Seal: Tough-Seal 21 is an ideal material for the encapsulation of sensitive electrical and electronic components that are subject to thermal cycling stress. Tough-Seal 21 bonds exceptionally well to the walls of most plastic and metallic housings, framesand shells and stays firmly in place without pull back during environmental exposure. For connectors, Tough-Seal adheres and seals to wire insulation and metal contacts and receptacles. It is soft enough to deliver a resilient and durable potting but receptacles are not prone to push back upon plug insertion. Tough-Seal 21 also makes a useful glob-top encapsulant to protect vulnerable microelectronic components from environmental, mechanical & electrical damage.

Key Polymer is ISO 9001 certified and has 45 years in the business of supplying specification materials to the electronic industries.

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Order an evaluation kit and everything you need to perform a high quality engineering evaluation is expedited to you. Post your comparison data and an image of your application to tough-seal@keypolymer.com and we’ll forward you our snazzy bulldog ball cap in appreciation. See for yourself. Tough-Seal comes out on top in side by side testing with your existing encapsulant.
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Essentially, if you use urethane encapsulants we can extend your service temperature and rid your facility of isocyanates. If you use silicones, Tough-Seal offers a cost effective, nonsilicone option with a friendly ratio and faster cure. If you use epoxy materials, Tough-Seal is an upgrade technology that can set quick, withstand the temperature yet offer imperceptibly low shrinkage upon cure, low embedment stress, and outstanding thermal cycling performance to solve your rigidity woes. Is Tough-Seal right for your application? To find out, call Key now or simply click to get a kit and see for yourself.

Application of Tough-Seal

Applying Tough-Seal: So how do we get started? Tough-Seal 21 is available in a variety of cartridges from 50cc to 400cc in volume. Tough- Seal 21 is also made available in gallons, pails or drums. Metered mixing and dispensing is preferred over hand mix and cartridges offer a convenient method of getting started without capital outlay. Both manual and pneumatic dispensing guns are available as well as cost effective stand mounted cartridge dispensing units with dosing capability. Key Polymer has close working relationships with metermix equipment manufacturers and is content to work closely with your engineering staff and theirs to specify a new unit. Key technical service is also a useful resource on the decisions needed to switch over existing equipment to Tough-Seal. Get started with a click for an evaluation kit.