resin transfer moulding is a method of creating composite products to be used in case of medium volume production projects. Abbreviated as RTM, this method is highly efficient and as a result it is popularly used. In case of this method, a closed mould is taken and it is filled with pre-formed reinforcement. Then, catalyzed resin is injected into the mould. After this, the amount of thermoset plastic or moulding material is measured and inserted into the same enclosed mound prior to the actual moulding process.
RTM is different from other moulding processes in the sense that the reinforcement materials are kept inside the cavity and the mould set has to be closed before introducing the matrix materials. This kind of process can be of different varieties depending on the mechanics of how the resin is placed inside the mould cavity with the reinforcement. The RTM process is actually quite simple, the resin is usually forced through materials like dry fabrics by applying vacuum and pressure in a matched mould at an increasedor ambient temperature. Then, the laminate is made wet and cured in an oven or at room temperature.
Resin Transfer Moulding is a process which is highly versatile in the sense that it can be used for making a wide range of items. One of the most common things constructed from this method is yacht thus, the marine industry swears by this method as it combines relatively low equipment and tooling costs in order to create large structural components that are capable of withstanding rough handling and very tough environmental conditions.
RTM method is used for creating different parts of yachts as desired and then these parts are combined or put together in order to create the finished product. In most cases, the RTM method is used for the purpose of making the hulls. Here, the edge infusion can be upward, downward or sideways. The method can also be used for making the body of the yacht or any other high quality composite parts with as little styrene emissions as possible.
The primary reason why the resin transfer moulding method is so preferred and popular in case of yachts is because of the fact that it facilitates higher productivity. Apart from this, reduced labour can also be enjoyed by those who opt for the RTM method. Of course there is a whole list of advantages or benefits offered by RTM that people simply love. The parts that are created through this method are fire retardant, resistant to chemicals and impacts and they would not rust or corrode.
From the manufacturer's point of view, the method is feasible because it is possible to achieve accurate thickness in case of the produced parts with it. Also, if required, then both the sides of the part created using RTM can be given high gloss finish. Last but not least, this method also reduces the amount of waste materials generated during the manufacturing process, which is why it is indeed the top method to adopt for making things like yachts, etc.