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WACKER ELASTOSIL® N9111 tin free silicone from Intertronics avoids conflicting chemistries and speeds assembly time

08-20-2018 09:56 AM CET | Industry, Real Estate & Construction

Press release from: Intertronics

/ PR Agency: The Industrial Marketing Agency
WACKER ELASTOSIL N9111 tin free silicone from Intertronics

WACKER ELASTOSIL N9111 tin free silicone from Intertronics

WACKER ELASTOSIL® N9111 from Intertronics is a tin-free single part RTV silicone adhesive sealant, with a neutral cure chemistry, producing a non-corrosive seal that does not inhibit other materials such as platinum cure silicones. This, along with its UL94 V-0 rating, makes it a strong candidate for electronics manufacturing, especially for gap filling, component ruggedisation, and form-in-place gasketing. It is stocked in depth at Intertronics for next-day delivery.

Elastosil N9111 is also well-suited for automotive and small appliance electronics and for new/sustainable energy devices and similar. Further applications for this general-purpose adhesive sealant include demanding bonding applications in the household appliances sector, e.g. bonding of ceramic hobs, screens and control panels in electric cookers, or mounting and bonding of front windows of microwave ovens.

This new adhesive sealant is technically an alkoxy-curing RTV-1 system, formulated with a tin-free catalyst. It is therefore ideal for applications in which organo-tin compounds act as inhibitors and are therefore undesirable, such as dam-and-fill applications.

For instance, Elastosil N9111 makes encapsulation of electronic modules significantly quicker and easier in situations such as dam-and-fill. In this process, a bead of non-sag silicone is applied to the module to create a dam around the encapsulation area, which is then filled with a low viscosity encapsulant such as a platinum-catalysed silicone gel. This avoids the situation which occurs if the RTV-1 silicone used for the bead contains a tin catalyst, in which case the silicone must be fully cured before encapsulation - otherwise the tin will inhibit the curing of the platinum-catalysed encapsulant. As a result, using tin-based RTV-1 silicones for such procedures is always time consuming and cost intensive. Elastosil N9111 has none of these drawbacks and consequently promotes productivity and process simplicity.

Physically, Elastosil N9111 is a soft, non-sag paste. Its viscosity decreases when shear is applied. This "shear-thinning" enables the silicone rubber compound to be readily applied both manually and mechanically. The material is available in black and white and adheres to many conventional substrates, such as aluminium, stainless steel, glass, polyamide and polyvinyl butyral. The cured rubber is resistant to both UV light and temperatures of up to 200 °C.

Elastosil N9111 therefore offers considerable time savings and processing advantages.

For further information please see www.intertronics.co.uk/product/silicone-adhesive-sealants or visit the Intertronics blog at www.intertronics.co.uk/blog.

Intertronics supplies adhesives, coatings, sealants and equipment to customers with high technology, high performance assembly applications. Their customers are manufacturers in industries such as electronics, medical devices, plastics, optical, automotive, energy, defence and aerospace.

Intertronics
Unit 17, Station Field Industrial Estate
Banbury Road
Kidlington
Oxfordshire
OX5 1JD
Tel: 01865 842842
email: info@intertronics.co.uk
www.intertronics.co.uk
Press contact: Peter Swanson

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