Go Gap Pad Thin…

Gap Pad 1500R is available in charcoal grey. And it really is thin – just 250μm thick, to be precise. Yet it shares the same highly conformable, low modulus polymer as the standard Gap Pad 1500.

It is interwoven with fibreglass reinforcement, which means the material is very easy to handle while the fibreglass component reduces puncture, shear and tear susceptibility. That makes it ideal for rugged applications where low thermal resistance, high dielectric strength (>6Kv) and high cut-through strength are not simply necessary – but are absolutely imperative!

Maximum continuous operating temperature is 200°C, ensuring excellent performance in the most extreme environments.

An inherent natural tack on both sides and a low shore hardness of 40 (shore 00) allows for good compliance to mating surfaces of components. In turn, this further reduces thermal resistance to less than 0.25°C-in2/W under compression.

Feel free to contact us at Thermal Issues Ltd for more information on this impressively thin but high performance material.

All the best – Neil

April 22, 2016


Posted in Bergquist, HC3.0

Yes, Thermal Engineering can be Beautiful

They say “beauty is in the eye of the beholder.” When you behold Bergquist HC3.0, there can surely be no doubt about that statement: it truly is a beautifully crafted piece of thermal engineering.

This exceptional material offers exceptional thermal performance at low pressures due to its unique 3.0W/m-K filler package and low-modulus resin formulation. With just 15 shore (00) hardness, the enhanced material is ideal for assembly applications requiring low stress on components and boards.

HC3.0 maintains a conformable nature that allows for quick recovery and excellent wet-out characteristics, even on surfaces with highly irregular topography.

A wide range of thicknesses is available from 0.5mm up to 3.0mm, and performance is improved by the natural inherent tack on both sides of the material. That eliminates the need for adhesive layers, which can impede the thermal performance.

HC3.0 is available from Thermal Issues in a very distinctive cool blue. Contact us for more information.

Best regards – Neil

Use SilPad 900s for rugged thermally efficiency

The SilPad 900s from Bergquist (part of the Henkel Group) is a remarkable piece of thermal engineering. It is a truly rugged, thermally efficient thin film interface.

There are countless applications for a material such as this, but key ones include Automotive, Power Supplies and Motor Controls. SilPad 900s has been deployed in the automotive industry for years as a reliable and trustworthy method of interfacing with engine management systems and collision mitigation hardware. So vibration issues are rarely a problem for this ‘workhorse’ thermal interface material.

Among its desirable characteristics is the combination of a smooth and highly conformable surface to optimise low thermal impedance coupled with high dielectric strength.

At Thermal Issues, we advocate its use in any application where high reliability, high dielectric strength and low thermal impedance are critical. It’s a superb thermal management solution.

SilPad 900s is available from stock for custom parts manufactured to your design with next day delivery. As is our policy at Thermal Issues Ltd, there’s no charge for tooling. Contact us directly to order or find out more.

Best regards – Neil

Thermal Thought Leadership with Celsia Heat Pipes

Our chosen business partner in the thermal management sector, Celsia Inc, is a renowned innovator in heat management technologies. When innovation is the destination, the journey is typically one of imagination and resourcefulness that can’t help but pick up a wealth of expertise on the way. And so it is with Celsia. Which is why I would like to share some of that expert wisdom.

For decades, heat pipes were the default two-phase device of choice for thermal engineers. Why? It was largely due to the cost advantages relative to more complex notion of vapour chambers. Heat pipes are used for heat transport, for which they still exhibit an advantage, and for heat spreading – typically using multiple pipes in close proximity.

They can be configured into an almost infinite array of shapes, moving heat from the evaporator to remote locations where it can be more easily cooled. For lower power applications, perhaps requiring only a single, small heat pipe, or those where heat must be effectively transported, heat pipes still dominate.

Celsia focuses its efforts on ‘difficult heatsink applications’, like those that require multiple heat pipes to transport heat over longer distances, or where a complex shape is required and two-piece vapour chambers are beyond the budget. As with all two-phase devices, thickness, wick porosity and type, and the quantity of working liquid are variables whose design can be adjusted and optimised to suit each application’s requirements.

In addition to creating specialty square heat pipes for improved thermal conductivity, Celsia is well versed in the design and manufacture of ‘thermo-syphons’ deployed where the condenser is especially far away from the evaporator. Celsia’s design engineers use sintered, mesh and grooved wicks in heat sink designs for a variety of industries. These advances have led to further innovations in Vapour Chamber design. And that’s something I will cover in detail in a future blog. In the meantime, watch this space, or call us if you’re too curious to wait!

Best regards – Neil

If you're looking for ultimate performance, read on...

What a way to start the New Year! Hot off the press is a significant announcement that we are delighted to be able to share. Thermal Issues Ltd has agreed an exclusive partnership programme with California-based Celsia Inc. – a world innovator in Heat Pipe and Vapour Chamber technology.

The agreement, which naturally we’ve been negotiating for quite some time, makes Thermal Issues the UK agent for the revolutionary Celsia range of application-specific thermal management products – comprising custom designs developed for challenging customer applications. So, as you can tell, a business model that already parallels our own beautifully.

Make no mistake, these inventive products are highly technical design solutions. Celsia specialises in custom heat sinks using two-phase devices. These are perfect for high heat flux applications, harsh or rugged environments, and where thermal management space is constrained. Through Thermal Issues Ltd, UK companies can now access thermal management expertise, as well as a product solution tailored to their exact needs.

How will it work? Pretty simple. Just contact us. We’ll get a handle on your thermal challenge – things like thermal requirements and space constraints – and run the calculations, backed up by our extensive knowledge of thermal management in general and heat pipe & vapour chamber technology in particular. Then we get back to you with detailed specifications ready for you to design in. And costs, of course.

This promises to be a very productive relationship for Thermal Issues Ltd and Celsia, and for UK manufacturers. It’s a new conduit for knowledge and products that solves age-old problems for designers.

Celsia is headquartered in Santa Clara, California, with production facilities in Taiwan.

Be sure to visit the Celsia website where you’ll find out that the company has shipped over two million solutions to global customers and holds more than 70 patents. In fact, Celsia was the pioneer of the ground-breaking one-piece vapour chamber design with heat sink integration a decade ago. Why is that ground-breaking? It delivers a cost-comparable alternative to heat pipes that is thermally superior and therefore hard to ignore.

Contact us any time to find out more. There’s a great deal to know.

Best regards and a Prosperous New Year - Neil

December 15, 2015


Posted in Company News

Out of the blue!

Thermal Interface Materials enquiries Out of the Blue

We've experienced a raft of enquiries from companies ‘out of the blue’, asking if we can do this, or do that, or sometimes the other. The answer’s almost always ‘Yes’, because we’re pretty agile – that’s core to our business model.

When I say “out of the blue”, I mean people and businesses we've never previously had contact with – not those kind souls we've met at trade shows or old industry acquaintances. No, these are people who have found us, and are curious about what we can do. That’s a good thing, of course. It means that whatever we’re doing with our promotions is working. Our name is getting out there. It’s refreshing.

A statistically significant portion of these enquiries have a defence agenda. It’s clear that businesses serving the defence industries need the assurance of reliable, compliant, consistent and traceable quality from well-known and trusted sources. It’s the same with our medical customers. Thermal Issues Ltd fits the bill perfectly here. Plus we only ever source from suppliers committed to obtaining the raw materials from conflict free regions of the world.

Another aspect of the Thermal Issues business model that seems to appeal to the defence sector is our rapid turnaround capability. Companies tasked with delivering urgent defence requirements like the ability to fast-track product developments. In fact, there’s a huge amount of interest in this fast-track enabling solution across many of our customers’ market sectors. We’re happy to oblige. Call us for a chat if it captures your interest too.

Best regards – Neil


December 08, 2015


Posted in Accuracy, Company News

What Does Thermal Interface Material Accuracy Really Mean?


Here’s a fact: very few of the projects we work on at Thermal Issues demand the ultimate levels of accuracy from our manufacturing endeavours. So what’s the point of the exceptional precision we boast about?

We think it gives an invaluable confidence, both to us as thermal interface materials manufactures and to our customers as users of those materials. Accuracy means that they can confidently pitch for and address any high-spec application – like those encountered in the aerospace sector – and successfully compete. These applications do demand stringent levels of precision, so the accuracy we can deliver is the only way forward.

It’s worth noting that the accuracy of our machines is exceptional: some 20 microns, consistently, day in, day out.

So why’s that important for customer applications that don’t required such fine precision? Simple. That’s where the confidence for us as manufacturers comes in.

Obviously, when we set up the machines for a production run, the first parts will be manufactured with total accuracy, typically within a few microns. But we also know, with absolute certainty, that the last part off the machines – even after several tens-of-thousands of parts have been produced – will still be within that 20-micron window. That’s how we can guarantee to meet our customers’ requirements for accuracy – whether they need it or not!

Best regards – Neil