Rust remover Polyform “Red”
The Red Gel polyform is an effective professional tool for removing rust and creating a passivated layer on metal, the Red polyform has a thicker consistency from the Red polyform agent, which facilitates working with the agent by slowing its flow from the work area and thereby reducing the number of application-wipe cycles for rust removal.
The agent effectively removes oxides, on the surface of aluminum, chromium, nickel, reducing the gloss of the surface.
Effectively removes old funnel and scale
Splines the chewed joints.
About application of rust converter Polyform “Red Gel”
Rust removal and creation of protective (passivated) layer.
1. First of all, it is necessary to clean the metal surface from dirt and formation rust.
2. It is convenient to use a screwdriver, spatula, brush or brush (for example, an old toothbrush) to apply the agent.
3. The agent is already in small quantities effective for removing body rust, so we recommend to cast a little in a small container so as not to contaminate the main quantity by rolling the brush.
2. The agent is applied to the rust and can be mixed on the surface to renew the contact.
3. After 10-15 minutes, remove (wipe) the conversion products with a napkin or fabric.
If the conversion products are thickened or solidified (with a longer holding time), it is necessary to apply a little liquid Polyform “Red Gel” agent, while dissolving the solidified film.
4. If the rust remains, re-apply the agent and remove the reaction products after 10-20 minutes (During this time, the reaction products should not have time to thicken). Such repetitions will need several.
5. When most of the metal surface appears, black dots or stripes can be observed on it – this is the beginning of the channels in which they contain rust, it is recommended to open (unravel) them under the rust transducer layer. For this purpose, a screwdriver or an iron brush can be used. Ideally, there should be a matte surface of metal with or without craters, and a little black dots, which is not critical.
6. The surface is wiped dry from the conversion products. Do not wash with water or allow condensation of moisture or precipitation before painting. If still water got in, it is recommended to wipe dry, repeat the treatment with the agent and then wipe dry.
7. It is recommended to paint in two layers or more! If there was contact with oil, degrease the metal surface before painting.
8. Before painting, the treated metal can be skinned with an sandwich 120-200 to obtain tins (to obtain a better paint adhesion), it is also possible to re-treat this surface with a transducer so that in the depth of the toss the open metal is passivated with a means, after which it is dry wiped.
9. To give higher anticorrosive properties to the future lacquer-paint coating, the metal can be additionally protected with the Polyform Lux agent before painting, which on average will add 2-5 years of anticorrosion resistance obtained.
10. Attention to this item is not recommended for painting cars and products whose surface will be subjected to temperature differences or impact loads. In some cases, for example, with large areas, rust can not be completely removed, but only seal the rusty surface with reaction products. For this, the agent is applied in excess and rubbed into rust. Then it is heated to a temperature of 30-45 ° C (conveniently in summer) until the conversion product layer is fully solidified. Then the surface is painted in two layers.
11. When the agent gets on the paint during treatment, it is necessary to wet it with dry fabric or napkin without rubbing, and then wipe it with wet fabric or napkin, then dry again (make sure that moisture does not get on the treated metal).
Rust Converter Design Principles
All rust transducers are essentially divided into two categories – substances that are able to clean rust and substances that combine with rust to form a “transformed layer.”
Depending on the composition, one can observe the first option – rust is removed, the second option – rust is not removed but is converted to a certain layer, and the third middle option – part of rust is removed and part is converted.
Let’s figure out what’s best.
Iron is a multivalent element of which two and trivalent compounds with oxygen are characteristic, as well as mixtures thereof. Ferrous iron oxide is black and has one rather dense spatial structure, but sesquioxide Fe2O3 already exists in three polymorphic modifications: the most stable “a” (present in the mineral hematite), “g” (maghemite, oxymagnetite) and “d” (with a trigonal crystal lattice); There is also a mixture of FeO.Fe2O3, or simpler Fe3O4 (mineral magnetite). All these oxides are formed during corrosion of steel and cast iron products in different ratios due to the difference in conditions (temperature, humidity, mechanical impact, the presence of oxygen, carbon dioxide, sulfur compounds, acids, etc.). The presence of moisture also affects the structure of rust since pure iron oxides (especially Fe2O3, Fe3O4) sorb even moisture not condensed into the mist to form hydrates, which further complicates the already complex structure of rust. This complexity of the structure makes the interaction of the transducers with rust little predictable since, in addition to the chemical interaction, the converter still needs to impregnate the rust to the metal itself. But such impregnation is rather complex since, closer to the metal itself, rust is usually compacted due to the predominance of ferric hemioxide in the composition of dense grains as well as a small amount of dense hydrates of FeO.Fe2O3Fe. Н2О the transducer itself is sorbed on porous layers of rust which have a relatively more developed surface. Thus, if you use a converter only modifying rust with the greatest probability, the result is a “modified layer” consisting of a mixture of substances: metal, then dense iron hemioxide with a small amount of sorbed gases (oxygen, carbon dioxide, etc.) – further Fe3O4-magnetite layer with or without moisture (it can get moisture during chromatographic separation from the converter there, leaving the remaining components to interact with the upper layers) further Fe2O3 hydrates with the transformed layer (usually iron salts and tan acids) and then only the converted layer with moisture. The number and ratios of these layers in each case will be different, and therefore their physicochemical and physical characteristics will be different. So, in addition to the possible corrosion activity, in the case of painting on such a layer, the coefficients of thermal expansion of the metal, paint and converted layers will be important. With a higher coefficient of paint than the layers, there will be a tendency to bubble (which will be limited to some limit by adhesion over the transformed layer). With less, cracking will be observed. Similar processes can also occur between the metal and the transformed layer. Of course, the absence of substantial layers of converted rust between the metal and the lacquer coating will reduce the detrimental effects of physical factors such as the expansion-compression difference. Thus, the painting should be carried out either on as thin a rust-converted layer as possible or on a passivated metal containing only a corrosion inhibitor or a complex thereof in the thin layer. And so, for the purpose of effective rust conversion, only rust converters can be used to remove rust as completely as possible and leaving a minimum amount of corrosion inhibitors, which, in turn, should be effective in the smallest amounts. In addition, it is desirable that the rust converters become protective after the active rust surface destruction step is completed, so that the possible (minimized) presence of corrosive agents (air oxygen) can accelerate the occurrence of a protective anticorrosion effect of small amounts of the rust converter on a clean metal surface. It was according to such principles that the Polyform rust converter “Red” and Polyform “Red Gel” were developed.