The Rubbercraft team are looking forward to catching up with customers – and meeting new people – at the forthcoming SAMPE exhibition in Seattle, due to run from 22nd May to 25th May 2017. We’ll be out in full force on Stand D38 so do drop by to hear about the latest advances from Rubbercraft.

The only technical conference and exhibition that is exclusively focused on advanced materials and processes, SAMPE promises to be an exciting few days, connecting delegates and exhibitors with emerging innovations, business solutions and proven technology advancements.

Rubbercraft will be delivering a paper on Wednesday, May 24th at  2:30pm, authored by our technical experts Mathias Hecht, Finley Miller, and Robert Harshberger, entitled:


For a taster, here’s an abstract but you will be able to access the entire paper later in May at showtime!

“Elastomeric materials are used as tooling for the manufacturing of composites due to their flexibility and their ability to change cross-section under pressure. Some of the applications include bladders and barrier layers that distribute pressure during the curing process. Different elastomers have different, temperature dependent gas permeabilities, which is a design consideration for elastomeric tooling. In this study, the gas permeability of different elastomers at room temperature and 180°C has been compared together with the effect on the surface quality and porosity of the composite structures. The effect of different curing configurations on laminate porosity has also been considered. It is has been observed that viton is less permeable than silicone at room temperature and 180°C. Both materials result in composite porosity when directly used as gas barrier layer that correlates with the material permeability. A tri-layer approach to eliminate gas flow to the composite completely has also been demonstrated…”

Take a look at our Informational Flyer about our products to feature at the exhibition.

We look forward to seeing you at the show!


When JEC World 2017 closed its doors on March 16, 2017,the Rubbercraft team certainly felt that it had been a busy few days – with many existing clients greeted and valuable new introductions made. Attendance figures recently published by the exhibition bear this out, with the show posting a double-digit attendance growth and 40.607 attendees from 113 different countries.

With all the latest innovations and expertise from Aerospace, Automotive, Better Living and Building showcased, JEC presented an ideal networking opportunity for Rubbercraft and Alex Edge, Business Development Manager CFE, reports that, following post-show analysis, JEC is an excellent forum for Rubbercraft.

“It was great to have the opportunity to meet up with so many existing customers in one place” says Alex ” but we are also particularly pleased with the number of new contacts made. There was significant interest in Rubbercraft’s Reusable Vacuum bags (RVBs); leading OEM customers in the aircraft sector are already using this high performance RVB solution, typically for producing large scale FRP composite parts moulded using an epoxy infusion resin, and we’re looking forward to talking to new customers in the Aerospace & Defence, Wind Energy and industrial sectors following JEC”.

To read more about RVBs, just follow the link below: –


Visit the downloads section of the site to get a data sheet.
Go to https://www.rubbercraft.com/downloads , select Product Information in Document Downloads and then choose Vacuum Bags Information Sheet.


At JEC World 2017 in Paris (March 14-16), Rubbercraft (Hall 6, Booth D68) is showcasing its latest capabilities to design and custom manufacture elastomeric Reusable Vacuum Bags (RVB). Leading OEM customers in the aircraft sector are already using this high performance RVB solution, typically for producing large scale FRP composite parts moulded using an epoxy infusion resin, or an epoxy prepreg system either in, or out of autoclave. Rubbercraft’s customized RVB product offering includes large and complex shaped bags that can feature integrated breather layers to effectively prevent permeation and can be in direct contact with epoxy resin systems. The products are primarily aimed at Aerospace & Defence, Wind Energy and industrial sectors where a high confidence level to consistently precision mould void free, high quality fibre reinforced composite components to exacting specifications is a critical factor.

According to Rubbercraft, its RVB sheet production process and custom design service provides customers with a very reliable reusable tooling solution, which not only produces higher quality mouldings time after time, but also offers a lower cost per cure and reduces labour and materials cost. Overall, this RVB system offers manufacturers a lower amortized tooling cost alternative to a disposable bagging system, especially for advanced composite parts needing compacting or debulking as part of a multiple ply moulding process.

Libby Thompson, IPS Group Marketing Manager commented: “Rubbercraft has exhibited at JEC in Paris before, so we know that it provides an excellent international platform, not only to showcase our new RVB product, but our wider range of products and capabilities. The JEC show provides us with the opportunity to meet key decision makers from both Europe and the rest of the world. This is important to us, as our fundamental aim during the show is to listen, learn and understand more about the latest industry challenges by speaking with researchers, designers, engineers, operators and buyers, and to then see if we can provide an appropriate solution to any of these challenges.”

Customized RVB Solution

Rubbercraft provides customers with a totally customised system solution, where the final RVB product supplied meets the specific needs of an individual component, custom designed and manufactured in sizes up to 20 m² (215 ft²). To do this, engineers from Rubbercraft’s technical team based in Long Beach California are involved from the start to ensure that the RVB compound materials used and sheet layering design specification matches customer needs in terms of: heat and pressure processing parameters; any extra release coating requirements, such as FEP/ PTFE; the desired part surface finish and detail; the estimated number of pulls and overall longevity of the RVB to ensure financial payback. Software tools used include: Solidworks, CATIA, MasterCAM, Unigraphics, IGES, STEP, AutoCAD, and Pro-E.

Superior RVB Performance

To provide superior properties and performance in use, Rubbercraft only uses 100% virgin raw material compounds from approved suppliers. The manufacturing process produces improved elastomeric properties, which enables the RVB to consistently produce moulded parts with a superior quality surface finish and dimensional accuracy, as well as providing the added benefits of greater bag longevity, with little if any deterioration in the surface condition or elastomeric properties.

RVB Production Process

Typically, either a silicone rubber (max 150 °C, 302°F) or high rated fluroelastomer (max 200 °C, 392 °F) based raw material compound is specified to produce the initial uncured calendared sheet from which the RVB will be cut once fully cured in a heat treatment oven. The final stage is to cut out the exact size of RVB required and bond into place the edging and outer seals using an RTV silicone adhesive (Room Temperature Vulcanization silicone) system. Multi-layer bags are also assembled using an additional breather layer and integrated vent ports. The bags can include edge seals that can either be integrated into the hard tooling or seal to the hard tooling.

Proven Aircraft Tooling Solutions

Rubbercraft elastomeric tooling solutions have been used by OEMs for a wide variety of aircraft development and production programs, including Boeing’s 787 Dreamliner and Airbus’s A350XWB. Rubbercraft is fully ISO 9001 and AS9100 accredited, with a proven 25 year track record of supplying elastomeric tooling solutions for a wide variety of composites aircraft applications including: winglets, nacelles, wing spars, horizontal stabilizer stiffeners, fuselage, doors and other complex shaped components that require trapped tooling such as bladders or mandrels. A wide range of composite manufacturing processes are supported by Rubbercraft’s solutions, including Inner Mould Line (IML) and Outer Mould Line (OML) designs, Autoclave and Out of Autoclave (OoA) processing.

Rubbercraft will be attending and can be found in Hall 6 Booth D68. We hope to see you there!

Visit the JEC World 2017 website for more information about the event.

Read more about Rubbercraft at JEC World 2017 at the following links: –

Innovation in Textiles >
Inside Composites >
Composites Today >
Composites World >
Net Composites >

Rubbercraft JEC Banner 2017


This year’s SAMPE Conference and Exhibition takes place from May 23rd to 25th and the Rubbercraft team will be out in force.

Rubbercraft experts Mathias Hecht, Robert Harshberger and Finley Miller  are attending and Mathias will be presenting a Technical Paper entitled:


Just to give you a taste of the presentation Mathias will lead, here’s an excerpt of what is in store…

Advanced composite structures increasingly take advantage of the unique anisotropic capabilities of the composite material to minimize weight and cost. One of the successful techniques is to selectively stiffen structures using hollow elements that are integrated into the surface of the composites. These stiffened structures can be formed in- and out-of-autoclave using both inner mold line and outer mold line lay-up tooling. Because the structural features of the advanced composites are hollow, the tooling is trapped and needs to be removed after curing. Different technologies to manufacture and remove such tooling are being assessed.

A comparison of the advanced stiffened structures to traditional honeycomb containing composites will be discussed and a case study with elastomeric tooling presented.

Download a copy of the SAMPE Technical Leaflet (PDF – 195kb)
Download a copy of the SAMPE Technical White Paper (DOCX – 1.6mb)



Aerospace is a key market for Rubbercraft, so where better to showcase the company’s expertise than at the Farnborough International Airshow?

Our focus at the show will be to introduce the newly formed Group structure – and also to present the IPS Europe team. From their Sheffield AS9100 Rev C (UK) site the IPS Europe team has the capability to deliver a global network for design, engineering, manufacturing and sales support .

The team will be on hand to promote and showcase their multifaceted, comprehensive aeroseal S&G product range.


The Rubbercraft team will be on their travels again in September when we exhibit at CAMX.

The Composite and Advanced Materials expo this year will be hosted at the Anaheim Convention Center and Rubbercraft will also be presenting a paper to showcase the company’s unique range of CFE solutions.

With an ongoing commitment to exceeding client expectations and delighting with innovative solutions, Rubbercraft is setting out to reshape expectations.

We are, in fact, ‘Bending the Expectations of Engineers from across the globe’.


It doesn’t seem long since we were building up to JEC World Composite show in Paris, March 2016 – and now we are busy following up the leads and contacts generated by a very positive show!

Previously known to us all as JEC Europe, the show rebranded for 2016 as JEC World, to reflect the dynamic global growth of the of the composites industries.

The show also enjoyed a new, bigger and more accessible venue at Paris Nord Villepinte Exhibition Center, only 5 minutes from Roissy Charles de Gaulle – a very necessary move since, with more than 100 countries represented and an annual 6% growth of visits, JEC World has become the largest international show of the composite industry.

With more than 1300 exhibitors, 100+ countries represented and, importantly, 30,000 delegates it was a perfect opportunity for Rubbercraft to showcase the CFE range of products and solutions. Engineers from around the globe were able to see first-hand some of the flexible tooling available from Rubbercraft and to discuss specific applications and challenges they are facing with Rubbercraft technical engineers.

Stu Lowndes, Rubbercraft Demand Creation Vice President and newly appointed President of Integrated Polymer Solutions Europe commented:

“This was a very busy and dynamic show, lots of positive and interesting discussions and great interaction.  Thanks to all our customers and new visitors to the stand; we look forward to working with you over the coming weeks and months, and to showing engineers from across the globe that Rubbercraft really can ‘bend expectations’ in new and exciting ways.”