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Techsil has introduced the IVS4742 encapsulant for low-pressure light-emitting-diode (LED) onboard lens moulding.

Developed by Momentive Performance Materials, the self-bonding LED encapsulant material has a viscosity and clarity that enable low-pressure direct onboard lens moulding.

Direct onboard lens moulding combines the potting, lens moulding and mounting steps in a single process.

The IVS4742 is a two-component, addition-cure silicone rubber specifically designed for optical device coating.

Its low viscosity and pressure can help to minimise the risk of LED damage.

The cure speed of the IVS4742 typically enables it to be de-moulded after two minutes at 150C; further post-cure is required to assure the completion of the cure and adhesion to substrates.

Naturally, the mould itself needs to feature simple de-moulding properties, such as a Teflon layer.

Some of the key features of this silicone rubber include: excellent transparency; low viscosity, facilitating flow; a 1:1 mix ratio by weight; and good adhesion to PPA.

Techsil

Distributors of a vast array of industrial Adhesives, Sealants, Tapes, Casting Resins and Dispensing equipment, serving a wide range of manufacturing industries including Electronics, Aerospace, Automotive, Medical, LED Lighting, Product Assembly, Rapid Prototyping and Packaging. Techsil® are authorised distributors for Momentive’s adhesive sealants. A particular strength is our in depth knowledge of technical adhesive and sealant applications in real production environments and we pride ourselves in providing the best customer care and service.

Techsil® was set up in 1989 and with our commitment to quality, technical excellence and reliability we have evolved into one of the most trusted Adhesives and Sealants suppliers around. We are global distributors of a vast array of industrial Adhesives, Sealants, Tapes and Dispensing equipment, serving a wide range of manufacturing industries including Electronics, Aerospace, Automotive, Medical, LED Lighting, Product Assembly and Packaging to name just a few.

How Can We help You? When you need the best materials for bonding, potting, sealing, coating or overmoulding, Techsil’s Technical Experts will help in product selection, from silicones, hot melt adhesives, tapes, epoxies, hook & loop fasteners and polyurethanes to the latest innovative UV LED curing systems. Techsil® specialises in adding value to industry by providing you with a consultancy / problem solving service through materials technology and process improvement. We have gained an enviable reputation in customer care and service.

Through good partnerships with our suppliers, we are able to offer a complete range of solutions to include well-established product ranges and new, technologically advanced materials. We are authorised distributors for Momentive Performance Materials, ThreeBond, MG Chemicals, BJB, ITW Devcon, Power Adhesives, FastFixers, ITW Stokvis Tapes, VELCRO®, Araldite®, ChemTrend, Panacol and Hönle and we also have a growing range of Techsil’s own brand products.

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