Under the able guidance of highly qualified promoters.
Delivering high quality solutions with excellent execution
In order to optimise efficiency and flexibility we offer different types of industries.
“Had a great experience with RCS Impex. They helped me saved tons by re-coating my waffle machines. I had otherwise considered going for new machinery and it would have costed me a lot .”
Shivam Khullar
Bubble Waffles
” We have very sensitive Food Processing machinery and have entrusted RCS Impex as our service provider for coatings since a very long time. Thanks to their 30 years + of experience. “
Lokesh Dewani
Devasha Industries
“RCS Impex is one of those few companies with whom I’ve experienced such positive levels of commitment. We are associated with them since over decade now! “
Gautam Ahluwalia
VR Trading
“Make RCS Impex your choice if you’re looking for a coatings service provider who would offer you just the right solution. They only believe in the concept of optimum outputs which they surely deliver.”
Aman Chaudhary
Monat
Teflon is the registered trademark and a brand owned by Chemours (formerly DuPont). Teflon is not a specific substance or product name. Teflon relates to a wide range of coatings used for industrial and consumer applications.
Xylan is a registered trademark and brand owned by the Whitford Corporation. Xylan relates to a wide range of fluoropolymer and fluoropolymer composite, industrial coatings.
A fluoropolymer is a polymer that is made up of monomers that contain fluorine atoms. There are many types but the principal fluoropolymers used in the coatings that we apply are PTFE (polytetrafluoroethylene), FEP (fluorinated ethylene propylene) and PFA (perfluoralkoxy).
PTFE on its own will not stick to any surface. The first step is to roughen the surface, normally by grit-blasting. Some PTFE coatings need a primer, which is a blend of highly adhesive resin, fluoropolymer and other pigments. When the topcoat is applied, the fluoropolymer in the primer bonds with the topcoat during the curing process to form a fully bonded coating. Coatings that do not need a primer are a blend of resin and fluoropolymer and because the resin provides substrate adhesion, this type of coating can be applied in only one layer.
PTFE coatings can withstand maximum operating temperatures of 260⁰c and intermittent exposure (up to 30 minutes) of 285⁰c. PFA (perfluoralkoxy) has similar operating temperatures but FEP (fluorinated ethylene propylene) has a maximum operating temperature of 205⁰c.
Minimum operating temperatures of PTFE, PFA and FEP coatings are well into the cryogenic range at around -195⁰c.
Yes we can. We have numerous methods of masking areas that need to be free from coating, such as threaded holes, dowel pins and general features. However, it is important to note that masking can be quite labour intensive and consequently adds cost. This is particularly important to consider at the design stage as once masking detail has been specified on an engineering drawing, it can be difficult to make changes in the future.
There is no such thing as an FDA approved coating. The US Food & Drug Administration (FDA) publishes a list of substances and end uses that are permissible where surface coatings are used in food contact situations. The correct terminology is FDA compliant as the ingredients that make up the coating need to be compliant with FDA requirements. It is also important to understand that FDA compliance is not a global, overarching standard. It only applies to the USA. There are different regulations that relate to coatings that are suitable for food contact that apply to other regions in the world, including Europe and some that relate specifically to Germany.
To answer the question, we do apply coatings that are FDA compliant and suitable for food contact applications in all other regions. If required, we can request a Regulatory Compliance Statement from the coating manufacturer.
As there is an almost infinite combination of substances, concentrations, operating temperatures and pressures, some fluoropolymers may be more suitable in certain circumstances than others. Although the fluoropolymers that we apply are inert to almost all substances, they all have distinct physical properties that need to be considered. We have a vast library of testing data relating to exposure of almost all substances to the fluoropolymer range. It is always wise to have a discussion regarding the application before selecting the most suitable coating system.
The coefficient of friction is a measurement of the force that resists movement between two surfaces that are in contact with each other. The lower the value, the lower the friction. There are two forms of friction – static and dynamic. Static friction is the force resisting initial movement of a static object. Dynamic (or kinetic) friction is the force resisting movement of two objects that are already moving against each other. Static friction values are normally higher than dynamic friction values.
There are several factors that affect the overall coating thickness. The first factor is the type of coating that is applied. One coat, resin based systems have a DFT (dry film thickness) of around 15 – 25 microns. Two layer systems (primer & topcoat) have a DFT of around 35 – 50 microns although some systems with pure fluoropolymer topcoats can be built up to well over 100 microns on certain types of geometry, with multiple topcoats. Some three layer systems (primer/mid-coat/topcoat) can have a DFT of 50 – 100 microns.
Yes, but only for relatively low current values. Although fluoropolymers have excellent dielectric strength, coatings are not suitable insulators where high electrical currents are involved.
There are a handful of coatings that are designed to provide electrical conductivity. There are also some coatings that are conductive by nature of their composition. For instance, where carbon is used to colour a black coating, it will also provide a degree of electrical conductivity.
It is important to note that conductive coatings are designed for applications such as static dissipation, not to operate or control electrical devices.
No. We apply a huge range of coatings that contain the three principal fluoropolymers that are either PTFE (polytetrafluoroethylene), FEP (fluorinated ethylene propylene) and PFA (perfluoralkoxy). As well as pure fluoropolymer topcoats, we have a very wide range of coatings that are blends of fluoropolymer and thermosetting or thermoplastic resins which have exceptional mechanical characteristics and also provide excellent chemical and corrosion resistance.
There are a range of colours that are available and some are produced to a specific RAL colour standard. It is important to note that the industrial coatings that we apply are primarily designed to be functional and not as decorative coatings. If you have a specific colour requirement, please contact us and we will be happy to discuss your requirements.
In the vast majority of cases, yes. We have several methods of removing worn or damaged coatings and we can re-apply either a direct replacement or even an improvement if required. Either way, this is a very cost effective way of extending the life of the part without having to re-manufacture.
Parts that are manufactured from very thin materials are not generally suitable for re-coating and if a plating operation has been carried out prior to coating application, this may have to be repeated prior to the re-application of the coating.
Virtually all metals can be coated, including aluminium, all types of steel, cast iron and most types of brass. Copper and alloys with a high copper content normally need special pre-treatments such as a layer of electroless nickel, as formation of an oxide layer on the substrate during the curing cycle can cause adhesion failure.
Many plastics can be coated although the curing temperature must be well below the temperature at which the material softens or any degradation of polymer occurs.
Some rubbers and elastomers can be coated, although Viton and silicone rubber are not generally suitable for coating.
Virtually all metals can be coated, including aluminium, all types of steel, cast iron and most types of brass. Copper and alloys with a high copper content normally need special pre-treatments such as a layer of electroless nickel, as formation of an oxide layer on the substrate during the curing cycle can cause adhesion failure.
Many plastics can be coated although the curing temperature must be well below the temperature at which the material softens or any degradation of polymer occurs.
Some rubbers and elastomers can be coated, although Viton and silicone rubber are not generally suitable for coating.
In the vast majority of cases, no. Some of the thicker coatings that we apply may hide very shallow marks but generally, the coating will follow the contours of the substrate material.
Yes we can but there are limitations in relation to the diameter and length of the bore and whether it is open at both ends or blind.
Unfortunately, we do not re-coat any domestic cookware. Such items are manufactured in a mass production environment and to strip off an old coating and re-apply a new coating to one item can be very labour intensive. It is always more cost effective to replace the item with a new one.
In the vast majority of cases, no. Some of the thicker coatings that we apply may hide very shallow marks but generally, the coating will follow the contours of the substrate material.
We can only carry out coating operations at our site. This is due to the specialist equipment and machinery required, health and safety regulations and also the fact that all of the coatings that we apply need to be cured in a carefully controlled environment at elevated temperatures that can be between 180⁰c and up to 425⁰c.
Yes we can but there are limitations in relation to the diameter and length of the bore and whether it is open at both ends or blind.
We have electronic instruments that can measure coating thickness on most ferrous and non-ferrous metals down to fractions of a micron. We also have conventional micrometers and calipers where the overall dimension of the part, including the coating thickness is required.
We have no restrictions on how many or how few parts we can process. We are more than happy to carry out one-off’s or prototyping work as well as large batches of many thousands of parts.
There is no simple answer to this. The most accurate way to determine the life of a coating is to test in the environment that it will be operating. There is some testing data available relating to salt spray exposure and for abrasion and wear resistance but there are an almost infinite combination of factors that can affect the life of a coating, so it is very difficult to give an accurate answer.
We do not sell any coating materials; we apply coatings to customers’ free-issue parts.
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