Category: optics

We have introduced Dymax Low Shrink™ OP-81-LS UV adhesive, which offers very low volumetric shrinkage. Designed for optical assembly applications that require precise alignment, the material cures in seconds on exposure to UV/visible light. It is single-part, solvent free and can bond dissimilar substrates — it is recommended for materials including polycarbonate, glass, acrylic, metal, […]

Optics engineers commonly require optical adhesives to bond components together during optical assembly, lens and prism bonding, optical element positioning and fixturing, and fibre-optic assembly. Every adhesive has its own strengths and limitations, which can make it challenging to determine which is the most suitable material for the task at hand. Selecting an adhesive requires […]

Our partners Techspray have a new blog post about Dusters – also called “air duster”, “canned air”, “compressed air”, and “dusting gas”, they are used to provide a pressurised blast, knocking loose dust and dirt. Think of them as a portable replacement for an air compressor line. They can be used to blow out biscuit […]

We are stocking the Techspray Vortex 360° Renew Duster, which provides an answer for companies facing the restriction on technical aerosols using HFCs with a Global Warming Potential (GWP) greater than 150. The EU F-Gas Regulation (517/2014) which comes into effect on 1 January 2018 controls the use and emissions of fluorinated greenhouse gases, and will […]

The new Polytec PT brochure offers information on specialist epoxy resin adhesives and potting compounds for electronics, electrical engineering, optical and medical industries. It details high strength optically transparent epoxies, including formulations with flexibility in the Shore A range. Medical device manufacturers will find products which are biocompatible and tested to USP Class VI. These materials […]

Opti-tec 5013 high performance, two-part epoxy is a water white optically clear general adhesive for bonding glass, ceramics, plastics and metals as well as some optical and opto-electronic applications. It ensures strong, clear structural bonds, including for repair and restoration where aesthetics are a priority. It can also be used for small volume potting and […]

The engineers at optical instrument makers Gooch & Housego use a high specification UV cure adhesive in a military application. It is premixed with microspheres to ensure bondline thickness. However, there were problems in getting a homogeneous dispersion of microspheres in the mix – which could lead to poor fitment of the optical element and […]

Ultraviolet curing adhesive-based optical fiber feedthrough for ultrahigh vacuum systems – J.-F. Clement, D. Bacquet and P. Szriftgiser, Laboratoire de Physique des Lasers, Atomes et Molecules, Universite des Sciences et Technologies de Lille, France. We were introduced to this technical paper a few days ago by a prospective customer. The authors present an inexpensive, simple, and robust method of making […]

We have previously discussed the need for greater precision and repeatability of adhesive dispensing within ever smaller and denser pcb real estate in the world of electronics assembly and manufacturing. Applications include optical bonding (e.g. touch screens, displays, smartphones, tablets), conformal coating, encapsulation (either dam & fill or glob top), underfills, and the like. There […]

When thinking about protecting sensitive electronics from moisture and shock, a silicone potting compound or encapsulant is usually a good starting place. If you are working with optics or LEDs, then you will want a clear material with good optical transmission. Opti-tec 7020 has been the potting compound of choice for our customers who need […]

Polytec EP 630 is a two-part epoxy adhesive which provides excellent high temperature, chemical, electrical and moisture resistance. Especially designed for applications in the semiconductor, medical, hybrid, piezo, fibre optics, HV and UHV applications, it has an excellent adhesion to silicon, glass, metal, ceramic, ferrite and most plastics and can be used as a low viscosity adhesive, […]

For those of you with bonding applications at high operating temperatures, we have some news!  Polytec PT Polyimide Adhesives provide excellent thermal resistance which is superior to any other organic adhesive. These modified polyimides are single component, solvent-based adhesives and coatings which are useful in the temperature range from 240°C to 500°C. They are available […]

The preeflow® eco-DUO450 is a two-component precision volumetric, positive displacement, dosing/mixing/dispensing system that gives you accuracy and repeatability. The preeflow eco-DUO450 uses the precision dispensing technology of the preeflow eco-PEN – by integrating two eco-PENS through a manifold and a static mixing nozzle, and provides extremely precise metering, mixing and dispensing of critical two-part materials like epoxies and silicones. The preeflow® eco-DUO450 can dispense as […]

We are very pleased to announce that we have signed a distribution agreement with expert German adhesives manufacturer, Polytec PT. Polytec PT offers a range of high technology adhesive products for micro-electronics, hybrid circuits, chip-on-board (COB), LEDs, component manufacture, displays, flexible circuitry, shielding, medical devices and optics/opto-electronics. The range consists of: Electrically conductive adhesives Thermally […]

The Opti-tec™ range of optical adhesives and encapsulant continues to develop, and includes many with high optical clarity or other special properties related to specific optical applications such as fibre-optic termination or optical potting and encapsulation. Some of the range have passed ISO 10993 testing for medical device manufacture or are Telcordia GR-326-CORE compliant. Specialist […]

Do you need a fast cure, low shrinkage adhesive for optics and optical assembly which eliminates parts movement? Dymax OP-67-LS opto-mechanical adhesive cures in seconds for bonding of optical components, whilst its low-shrink nature virtually eliminates movement during curing and subsequent thermal cycling. OP-67-LS offers the ability to “cure on demand” with exposure to longwave […]

Opti-tec 4200 is an encapsulant/potting compound and adhesive. This optically clear polyurethane is ideal for use in electronics or electrical equipment which incorporates LEDs or other items where high transparency and aesthetics are important. Its clear, non-yellowing, hard setting properties will be appreciated in outdoor signage, illumination projects, e.g. pathways, swimming pools or fountains and […]

A question from the DYMAX blog: We have to manufacture a component which is comprised of two individual parts molded from acrylic (PMMA) that have slightly different additives. The parts have concave and convex surfaces which fit onto each other. We want optical coupling between these two surfaces. Can we place one piece as an […]