Vacuum RTM (RTM Light) Test-Panel Mould Demonstration

This video shows a vacuum-clamped RTM test-panel mould in use.
This type of mould has been supplied by Composite Integration Ltd to R&D facilities, Universities and Research Institutes around the world for the production of accurate laminates whilst having full control and visibility of the process.
We use this type of mould to assess different materials (resin, fibre, cores etc) and to demonstrate the RTM process at a fundamental level.
Moulds can be produced in a variety of sizes and can also include adjustable cavity thickness and integral heating. Mechanically clamped moulds to suit higher injection pressures are also available.
Please visit our website to learn more about our products and services: www.composite-integration.co.uk

[@samuelsanjeev9164]

also does mold b which is the top side touching the fibers when air tight, because i wonder how you got the nice finish... are you using releasing agents like wax and pva to release the top half of the mold aftr curing the part

[@Compositeinteg1]

Yes, both sides of the mould are coated with a 'semi-permanent' release agent which prevents the resin from adhering to the surfaces and maintains a good finish. We generally use the release system from Marbocote (www.marbocote.co.uk)

[@30111984s]

Hello! Is that also possible using a 2K Polyurethane liquid system instead of the polyesther resin? I guess a different equipment would be necesssary, but I was wondering if, theoretically, can work any way! Thank you

[@Compositeinteg1]

Hi Stefano, Yes, this type of mould can potentially be used with a PU system. The type of equipment necessary would depend on the material specification but feel free to contact us if you'd like us to look at this in more detail. Actually I have just uploaded a video that shows a similar mould but with a variable/adjustable cavity and a higher pressure rating that could also be of interest. Follow this link: kzbin.info/www/bejne/jn2pm2eJgdySfLs

[@mcamposc02]

Hi, you use a tempered glass or an Acrilic like the B side? if my proyect is 1 mt width, 2 mt long and 3mm deep, what kind of material you recomend for my B side?

[@Compositeinteg1]

Hi, we use heat-toughened (tempered) glass for the upper half.

[@sharmendrankumarasamy5370]

Hi, great video...where can i obtain the rubber use for seal ?

[@Compositeinteg1]

You can purchase all the rubber seals (and other components) from Composite Integration Ltd Have a look at www.composite-integration.co.uk

[@mcamposc02]

hi, how (where) is the air inyected to open the mould? And how you control the resin in the inyection line when you finish? thanks

[@Compositeinteg1]

+Puertas y Decoracion The Air is injected via an 'Air-Ejector' valve built into the lower mould half. You can see the end of this valve (black circle) in the centre of the lower mould at the start of the video. The resin is injected into the mould through an 'Injection Valve' and this valve is cleaned (flushed with solvent) as part of the cleaning cycle of the Ciject injection machine at the end of the process.

[@samuelsanjeev9164]

hello, great video... would like to know how much this mould would cost and how can i get it touch to purchase jus the mold and air ejector assembly.

[@Compositeinteg1]

Hi Samuel, Thanks for your positive comments. if you contact us via our company email ([e-mail]) we can send details and pricing.

[@abedyazbek5993]

Hi i wounder if my proyect is 0.8 mt width,0.8 mt long and 50mm deep, can your system help?, and if yes how long time it takse till you finish the injection of that big quantity of resin - about 9kg

[@Compositeinteg1]

It's hard to say exactly how long it would take to inject this mould as this will depend on the resin viscosity and the fibre type and content. However, an injection rate of approximately kg per minute is generally achievable. The size is no problem and we have experience of building and using moulds much bigger than this.

[@abedyazbek5993]

Compositeinteg1 thanks alot I need your phone num.

[@Compositeinteg1]

No problem- the main office number is [phone]

[@MrUltracoin]

What would happen if there was no RTM machine, only vacuum sucking in the catch pot?

[@Compositeinteg1]

Koen Klijnsmit The machine is controlling the pressure of the resin at the inlet (small level of positive pressure). Without the machine the process would still work but it would be slower.

[@MrUltracoin]

Thank you, i can not afford the RTM machione but i have a small vacuum pump. The 2 hard shells instead of 1 and a flexible bag just seems more accurate to me (if you calculated your tolerances correctly). That is why i was wondering if it would still work without a pushing force on the resin... To make it even more complicated, i need a mold that can become 100 degrees C, so i am thinking of putting Carbo e -therm between layers ( i can not find a more advances solution), then i don`t even need an oven anymore.

[@Compositeinteg1]

Koen Klijnsmit Yes, your process could potentially still work with only vacuum providing the transfer pressure.You might also look at the Fibretemp mould heating system from Germany- it could be relevant. www.speautomotive.com/SPEA_CD/SPEA2009/pdf/ET/ET-09.pdf

[@MrUltracoin]

Thank you, that looks interresting. ^_^

[@Anenome5]

What does RTM stand for?

[@Compositeinteg1]

Michael Eliot Hi Michael, RTM stands for Resin Transfer Moulding. VRTM stands for Vacuum Resin Transfer Moulding and so implies that the mould is held closed solely by atmospheric pressure (vacuum)

[@ianhatzilias6032]

+Michael Eliot Resin Transfer Molding