Mendeleev Ltd.

Development and production of paintwork materials

Preservative substances and hydrophobizators for wood and concrete,
automobile chemical goods, paint removers, anticorrosive PM, solvents for printing industry.

Wood bleaching agent "Snegurochka-2"

Wood bleaching agent “Snegurochka-2”

Materials supplier: MENDELEEV LTD. Applied materials: “Snegurochka-2” wood bleaching agent. Objective: restoration of fungi-affected wood. Date of operation: May, 2012. Air temperature: from 7 to 16º С Relative air humidity: 81 to 94%. Such processes as wood decay, loss of color, fungi, moss and weed growth are widespread. Mendeleev Ltd. offers you special agents for bleaching and preliminary wood preservation as well as for sanitation of construction materials “Snegurochka-2”. Pic.1 Here is an experiment exposing fungi removal from a wooden pallet. The pallet was divided into 3 parts by a black permanent marker. To the lower part the composition will subsequently be applied. Pic.2 For bleaching you will need: water, “Snegurochka-2” Composition and bristle brushes. Two-component “Snegurochka-2” Composition consists of alkaline component Snegurochka and hydrogen... Читать дальше
Видеоотчет и описание процесса отбеливания древесины с помощью двухкомпонентного состава Снегурочка-2

Video report and description of bleaching process using two-component agent Snegurochka-2

(The text is an interpretation of video material) We represent you a product developed by Mendeleev Ltd. from Saint Petersburg. It is a two-component wood bleaching agent – Snegurochka-2. Let’s take a pallet for our experiment. Remove the upper contaminated layer using a jack plane. Now we see the limits of upper and lower zones. The lower part will be bleached using a chemical method. Let’s proceed with antiseptic treatment and take the first component – Snegurochka-2. Snegurochka-2 is a clear liquid without any odor. It is a highly-efficient agent designed to catalyze, bleach and preserve wood. Let’s apply at least 100 ml of Snegurochka-2 per square meter with a flywheel brush and wait for 20-30 minutes. Snegurochka-2 destroys fungi, weeds, moss and bacteria and makes their waste products colorless. This solution is recommended both for interior and exterior... Читать дальше
Описание процесса удаления порошкового покрытия с дюралюминиевой детали, защищенной аноксом с использованием смывки для удаления порошковой краски № 860

Description of using Powder Paint Remover No. 860 to clean

(The text is an interpretation of video material) Once in my career, I faced with a need to apply a powder painting method to aluminum alloy parts. The customer set extremely strict requirements for appearance and thickness of coating. As a result, about a quarter of parts were discarded by the Quality Control Department. The price of parts is several times higher than the price of painting, so the question of powder coating removal came up. Another problem was that the parts were coated with anox, anodic oxidation over aluminum and aluminum-based alloys which ensures protection against corrosion. Such a coating also provides excellent adhesion for paintwork materials, including powder paints. Moreover, anodizing during galvanic treatment may also be accompanied with painting to give the parts a decorative touch. Our chemical laboratory tried to make a cleaner, however, anox effect and dimensions were changed, i.e. a... Читать дальше
Description of graffiti removal from roller shutters

Description of graffiti removal from roller shutters

(The text is an interpretation of video material) Graffiti have become a problem No. 1 for both Russia and the rest of the world. Probably, everyone faced such a demonstration of vandalism. Unfortunately, these inscriptions affect the aesthetic image and historical architecture of our city. MENDELEEV Ltd., research and production company, has developed a line of materials to address this problem. Today we are going to demonstrate how to remove graffiti from roller shutters in a fast, cost-effective and safe manner. The base is grooved metal plates covered with a thin layer of powder paint. Air temperature today is -4° C. Approximately half a year has passed after this graffiti was made. Step We use Old Paint Remover No. 281 to remove graffiti from the roller shutters. The composition does not provoke corrosion as is does not contain neither acids nor alkalis. Spray the remover evenly to a graffiti element, trying not to overrun the picture in order to reduce the... Читать дальше
Preparation and painting galvanized tin

Preparation and painting galvanized tin

Materials supplier: Mendeleev Ltd. Applied materials: FAS-104, an inhibitory agent for metallic surfaces preparation for painting, Two-Component Enamel NP-1999 for Galvanized Tin. Objective: Galvanized metal anticorrosion protection enhancement and its decorative design. Date of operation: December, 2011. Air temperature: from 16ºC. Relative air humidity: 81%. Galvanized metal is widely used in construction and restoration finishing of buildings – roof, rainwater pipes, cornices. Quite often the customer requires to design galvanized metal elements in the same color as the building facade, which would make them nice-looking and, at the same time, significantly increase their durability. Pic.1 – metal rainwater pipes, painted the same color as the building facade. It is rather hard to paint galvanized metal, as the paint peels off or does not cover the surface at all, therefore this type of metal is treated with mordant first, its protective qualities thus becoming reduced.... Читать дальше
Solvent, enhancing adhesion of polyurethane soles to leather uppers

Solvent, enhancing adhesion of polyurethane soles to leather uppers

Materials supplier: Mendeleev Ltd. Applied materials: Turbo-reactive solvent grade “Ya”. Objective: Remove the process of mechanical preparation of polyurethane soles glossy surface from the technological procedure. Create an agent that would enhance the adhesion of a polyurethane sole to leather. Date of operation: December, 2011. Air temperature: from 18ºC. Relative air humidity: 84%. Turbo-Reactive Solvent Grade “Ya” helped in enhancement of adhesion when gluing polyurethane soles to leather uppers at one of Saint Petersburg footwear factories. Works execution procedure: Pic.1 – Polyurethane soles, glue, Turbo-reactive solvent grade “Ya” Soles are produced by moulding. Note the perfectly plane and smooth surface that does not provide necessary adhesion of polyurethane to leather while gluing. Mechanical treatment was used for adhesion enhancement formerly. The... Читать дальше
Curtain holder painting defect elimination

Curtain holder painting defect elimination

Materials supplier for defect elimination: Mendeleev Ltd. Materials used for defect elimination: Turbo-reactive solvent grade “Ya”. Date of operation: December 20, 2011. Air temperature: from 18ºC. Relative air humidity: 84%. Wooden curtain holders which started the history of home decoration remain very relevant. Modern wood processing technologies make it possible to create distinctive curtain holders with decorative elements. End-caps, holders, brackets, wood-carved leaves and flowers require careful and accurate painting. Different tints, blisters and craters in the coating, paint leaks, different coating thickness are not only unacceptable – these are coating defects. They are easily eliminated with Turbo-reactive solvent grade “Ya”. Pic.1 – Wooden curtain holder decorative elements Wooden curtain holder end-caps, discarded by the Quality Control Department during wood staining and... Читать дальше
Jelly-like agent for cleaning articles from powder paint

Jelly-like agent for cleaning articles from powder paint

Materials supplier: MENDELEEV LTD. Applied compositions: Powder Paint Remover No.133 P. Date of operation: December, 2011. Air temperature: from 18ºC. Relative air humidity: 84%. An enterprise having a metal articles powder painting line faced with an intractable task. A large batch of steel pop-rivets was discarded. In a short period of time a quality removal of the powder epoxy-polyether coating had to be executed. This paint and varnish coating is destroyed in both in liquid agents – Powder Paint Remover No. 860 – by dipping, and in jelly-like ones – Powder Paint Remover No.133 P – by applying with a brush (this composition is more practically applied to large-size items). There is, however, an alternative: Method of dipping the parts painted with a powder paint into the jelly-like composition Powder Paint Remover No.133 P. The result exceeded all expectations. Pic.1 – Pop-rivets painted with a powder... Читать дальше
Turbo-reactive solvent grade D, agent for hydrophobic filler removal from fiber optic cores (D-Gel)

Turbo-reactive solvent grade D, agent for hydrophobic filler removal from fiber optic cores (D-Gel)

Materials supplier: Mendeleev Ltd. Material: Turbo-reactive solvent grade D (an analogue of D Gel, Д гель, D’gel, D-gel). Date of operation: December, 2011. Air temperature: from 20ºC. Relative air humidity: 85%. Significant changes have taken place within the sector of information technology in recent years. Convenient ADSL modems got outdated and fiber-optic communication lines (FOCL) appeared to replace them. Major Internet providers of Saint Petersburg, Moscow, Far East, Yekaterinburg, Rostov-on-Don announced their adoption of fiber optic communication. This technology can provide up to 100 Mbit/s speed of data transfer. PON (Passive Optical Networks) Technology implies laying electric energy unconsuming fiber optic cable directly indoors. Optical fibers are light-transmitting elements of the optical cable. To provide uninterrupted signal transmission, it is necessary to splice the fibers of one cable with those of the other one by fusion. Fiber optic... Читать дальше
Graffiti removal from a painted wall

Graffiti removal from a painted wall

Address: Saint Petersburg, 50, Ligovsky Prospekt. Materials supplier: Mendeleev Ltd. Date of operation: October 18, 2011. Product used: Old Paint Remover No.281. Air temperature: +12ºC. Relative air humidity: 93%. Pic.1 – The graffiti was made with a conventional construction marker, containing poorly soluble pigments. Pic.2 – Spraying... Читать дальше
Graffiti removal from roller shutters

Graffiti removal from roller shutters

Address: Saint Petersburg, 50, Ligovsky Prospekt. Materials supplier: Mendeleev Ltd. Date of operation: October 18, 2011. Objective: Remove graffiti from roller shutters, leaving the thin decorative powder paint layer undamaged. Product used: Old Paint Remover No.281. Air temperature: +12ºC. Relative air humidity: 93%. Pic.1 – Please note that the roller shutters are coated with a thin powder paint layer and that it is Old Paint Remover No. 281 that will remove graffiti without damaging the primal paint layer.   Pic.2 – Product used at the object – Old Paint Remover No.281. It is designed to remove thin hard-to-destruct paint coatings following a spraying method.  The remover is a liquid of grayish-white color, it does contain neither acids nor alkalis. Product consumption: minimum 200 ml per square meter. Please note that this remover is used for graffiti removal... Читать дальше
Graffiti removal

Graffiti removal

Materials supplier: Mendeleev Ltd. Compositions used: Powder Paint Remover No.281. Date of operation: September, 2011. Air temperature: +5 to +12ºС. Relative air humidity: 84 to 98%. Today graffiti is a sort of street art, one of the most popular forms of artistic self-expression all over the world. Graffiti include all kinds of wall drawings – simple words as well as exquisite graphics. от простых слов до изысканных рисунков. Unfortunately, nearly each wall, architecture monument, railroad car or subway station is covered with graffiti. This is but a brief list of what was vandalized with the help of a spray can. Our construction companies, communal services and restoration workers have to paint these drawings over. In Pic.1 it is seen that the painted surface was covered with graffiti and then it was painted over, although the tags should have been washed off first. As... Читать дальше
27-29, Mokhovaya St.

27-29, Mokhovaya St.

Materials supplier: Mendeleev Ltd.   The facade of the building before restoration. Year 2010.   Object address: 27-29, Mokhovaya St. Date of operation: July, 2011. Air temperature +27ºC. Relative air humidity: 73%.   General view of the house during restoration works.   Information on the state customer, the general contractor and the restoration works customer: State customer: Saint Petersburg Committee on state supervision, exploitation and preservation of historical and cultural monuments. Internet site: http://kgiop.ru E-Mail: kgiop@gov.spb.ru, kgiop@gov.spb.ru Customer: Saint Petersburg Government Establishment “Customer’s Directorate on restoration works on historical and cultural monuments” Address: Saint Petersburg, 1, Lomonosov sq. General contractor: Vologda restoration company, Ltd.     The... Читать дальше
Restoration of the Mariinsky hospital cast iron fence

Restoration of the Mariinsky hospital cast iron fence

Materials supplier: Mendeleev Ltd. Object address: 56, Liteyny Prospekt. Date of operation: June, 2011. Air temperature: +18ºC. Relative air humidity: 75%. Pic.1 – The Mariinsky hospital with an iron cast fence In 1803-1805 in honor of the city’s centenary at the expense of empress Maria Feodorovna a hospital for the poor was built, the Mariinsky hospital. The central building and the side wings face Liteyny Prospect. The project author is D. Quarenghi. The front yard is separated from the street by an iron cast fence.  From time to time the fence was repainted, its original refinement being lost. The issue of architectural monuments (buildings facades, sculptures, metallic constructions) preservation is extremely topical today. Architectural constructions restoration is a difficult and complex type of construction works. Quality restoration requires profound and special experience and skills and is... Читать дальше
Modelled decor restoration

Modelled decor restoration

Materials supplier: Mendeleev Ltd. Object address: Saint Petersburg, 13, Kamenoostrovsky Prospekt. Works executed by: Lapin enterprise Ltd. Object address: Saint Petersburg, 23, Konnogvardeysky Boulevard. Works executed by: ZAO Remfasad, ZAO Fasadremstroy. Date of operation: June-August, 2011. Air temperature: +18 to +26ºС. Relative air humidity: 75 to 90%. Facade plaster decor is a very important part in restoration of the buildings historical appearance.  It accentuates the building decoration refinement and gives the impression of the overall architectural composition integrity.  Modelled articles restoration includes a vast complex of works. Molded stucco restoration technique requires carefulness of execution and high professional competence. Modelled decor elements are subject to considerable destruction and natural dilapidation. The most widespread type of stucco... Читать дальше
34, Suvorovsky Prospekt

34, Suvorovsky Prospekt

Object: 34, Suvorovsky Prospekt. Air temperature: +18ºC. Relative air humidity: 81%. Date of operation: summer 2011. Pic.1 – View of the building before restoration. Year 2010   Pic.2 – General view of the house during restoration   Pic.3 – Information on the state customer and the general contractor Customer: Saint Petersburg Government Establishment ‘Customer’s Directorate on restoration works on historical and cultural monuments’ General contractor: Intarsia Group of Companies. Pic.4 – Product used   Pic.5 – The wall with Old Paint Remover SP-67, grade A applied. After 30 minutes exposure the old paint coating is easily removed with a spattle. Pic.6 – A bas-relief cleaned from multilayer paint. Please note that the facade element was not damaged during paint removal. Pic.7 – A balcony support cleaned from multilayer paint. Old Paint Remover SP-67 grade A worked excellently even on the... Читать дальше
40, Nekrasova St.

40, Nekrasova St.

Object address: 40, Nekrasova St. Air temperature: +23ºC. Relative air humidity: 69%. Date of operation: summer, 2011. Materials supplier: Mendeleev Ltd. Pic.1 – View of the building before restoration.   Pic.2 – General view of the house during restoration.   Pic.3 – Information on the state customer, the general contractor and the restoration works customer. Customer: Saint Petersburg Government Establishment “Customer’s Directorate on restoration works on historical and cultural monuments”. General contractor: Science Production Holding Company Remstroykompleks Ltd. Pic.4 – The result of the remover application on an ancient bas-relief.   Pic.5 – The beginning of the old coating removal works.   Pic.6 – Cleaned façade elements.   Pic.7 – One of the décor elements.   Pic.8 – A lion’s head... Читать дальше
51, Suvorovsky Prospekt

51, Suvorovsky Prospekt

Object: 51, Suvorovsky Prospekt. Relative air humidity: 86%. Air temperature: +18ºC. Date of operation: summer 2011. Pic.1 – View of the building before restoration.   Pic.2 – General view of the house during restoration.   Pic.3 – Information on the state customer and the general contractor. Information on the state customer and the general contractor. Customer: Saint Petersburg Government Establishment ‘Customer’s Directorate on restoration works on historical and cultural monuments’ Intarsia Group of Companies. Pic.4 – Product used at the object. Products used at the object: Old Paint Remover No.222 and Old Paint Remover SP-67 grade A. Pic.5 – Applying remover onto a bas-relief. Applying the remover onto a bas-relief with a soft brush. In 30 minutes the remover will begin to effect and the old paint will bloat. Pic.6 – The visible result of Old... Читать дальше
35, Millionnaya St., The New Hermitage

35, Millionnaya St., The New Hermitage

Materials supplier: Mendeleev Ltd. Compositions used: Old Paint Remover No.161. Works execution address: Saint Petersburg, 35, Millionnaya St. Works executed by: BAST Ltd. Date of operation: August, 2011. Air temperature: +17 to +24ºС. Relative air humidity: 83 to 98%. Restoration (Latin “restauratio”) is a process of antiques or architecture retrieval of their primary view. There exist a great number of restoration types, depending on their specifics. It may be restoration of buildings, facades, certain elements of a building as well as the interiors restoration.  Today Saint Petersburg companies engaged in restoration works execute complete restoration of the historical appearance of a building, its interiors as well as the exteriors. During the interiors reconstruction (modelled decor elements, vertical and overhead plane surfaces) a number of requirements, set up by KGIOP to restoration compositions are to be met. The agents... Читать дальше
11, Pestelya St.

11, Pestelya St.

Object address: Saint Petersburg, 11, Pestelya St. Relative air humidity: 73 to 95%. Air temperature: +15 to 27ºС. Materials supplier: Mendeleev Ltd. Date of operation: July-August, 2011. Pic.1 – View of the building before restoration (2010).   Pic.2 – The building covered by restoration scaffolding. As seen from Solyanoy lane.   Pic.3 – State customer. State customer: Saint Petersburg Committee on state supervision, exploitation and preservation of historical and cultural monuments. Customer: Saint Petersburg Government Establishment ‘Customer’s Directorate on restoration works on historical and cultural monuments’ General contractor: Stroytekhuslugi Ltd. Pic.4 – Powder Paint Remover No.161. Works on cleaning the surfaces from the old paint are executed chemically, using Old Paint Remover no.161. Pic.5 – A worker of a repair team applies remover... Читать дальше
11, Kolokolnaya St.

11, Kolokolnaya St.

Materials supplier: Mendeleev Ltd. Compositions used: FAS-109 Alpinist, FAS-110. Works execution address: Saint Petersburg, 11, Kolokolnaya St. Works executed by: Gildia masterov Ltd. Date of operation: June-August, 2011. Air temperature: +19 to +28ºС. Relative air humidity: 65 to 98%. Facade cleaning (chemical cleaning) is one of the most difficult kinds of cleaning services. Special technology, cleaning agents and professional skills are necessary to perform this type of service. Facade cleaning is performed with special chemical solutions, with due regard for the surface specifics and the degree of its contamination. Unfortunately, all this wide range of available cleaning compositions is intended for seasonal facade cleaning only. Such agents can remove only dust. For the purpose of cleaning the surface of a facade from contamination there used the specialized materials, containing a number of active components, providing rust, soot, oily... Читать дальше
51, Bolshoi Prospekt (Vasilievsky Island)

51, Bolshoi Prospekt (Vasilievsky Island)

Materials supplier: Mendeleev Ltd. Compositions used: FAS-109. Works execution address: Saint Petersburg, 51, Bolshoi Prospekt (Vasilievsky Island). Works executed by: Top Service Cleaning Ltd. Date of operation: May-June, 2011. Air temperature: +10 to +18ºС. Relative air humidity: 86 to 95%. Pic.1 – General view of the house before cleaning. Pirogov multiprofile clinic is a medical establishment, providing a wide range of surgical operations, from plastic to the most complex cavitary and cardiac ones. Although the clinic is situated in the historical part of the city, its facade is in a poor state: All covered by graffiti, the porous surface of the brickwork is saturated with soot and smut contamination. Historical appearance of the building was restored by Top Service Cleaning Company, engaged in professional cleaning of engineering structures and architectural monuments using modern agents and equipment. Pic.2 – A wall contaminated... Читать дальше
Icon painting. PKK Minium composition application

Icon painting. PKK Minium composition application

Materials supplier: Mendeleev Ltd. Compositions used: Minium antirust composition. Object address: Kronstadt, St.Nicolas’ Naval Cathedral. Works executed by: Icon painting workshop Kovcheg Ltd. Date of operation: September, 2011. Air temperature: +9 to +16ºС. Relative air humidity: 64 to 97%. Repair and restoration works of St. Nicolas’ Naval Cathedral in Kronstadt are conducted by a joint effort of the Russian Orthodox Church, the Russian Navy and the Russian Federation Ministry of culture. Today a stage in the altar is dismantled, cathedral wall paintings and iconostasis restoration works are conducted. Icon restoration is a difficult and labor-consuming process, it was commenced by icon painting workshop Kovcheg. Fig.1 – Copper plates painted with Minium antirust composition.   For anticorrosion protection the copper plates were covered with Minium antirust composition which provides the prolonged corrosion... Читать дальше
Brickwork Hydrophobization

Brickwork Hydrophobization

Materials supplier: Mendeleev Ltd. Compositions used: Impregnation For Hydrophobization Treatment BASE – HYDROFUGE No.8. Object address: Saint Petersburg, 20, Vasilievsky Island, Line 5. Works executed by: Severnaya Venetsiya Ltd. Date of operation: September, 2011. Air temperature: +8 to +12ºС. Relative air humidity: 85 to 99%. To make construction materials more durable and water-resisting hydrophobization compositions are used. Construction materials market offers a great number of hydrophobization compositions, silicone for the most part. Silicone products manufacturers, however, do not recommend to use their agents in high humidity and precipitation conditions. There is an alternative today: A hydrophobization agent having good absorptivity and permeating deeply into the surface due to nonpolar solvents. Impregnation For Hydrophobization Treatment BASE – HYDROFUGE No.8 is one of these. Pic.1 – Impregnation For... Читать дальше
Glued laminated timber painting technology

Glued laminated timber painting technology

Materials supplier: Mendeleev Ltd. Compositions used: Dimet® Ultra-Antiseptic Impregnation. Date of operation: August-September, 2011. Air temperature: 9 to +12ºС. Relative air humidity: 85 to 99%. Glued laminated timber (Glulam) is a new technology in wooden constructions building. One of the advantages of glued laminated timber is that it is deformation-resistant. It provides a perfectly new level of architectural creative work, as the glued construction is not limited by span width, depending on a timber length. Pic.1 – Glued laminated timber. Glulam is made from wood of coniferous species, which is sawn and treated in drying chambers to the relative humidity 8 to 12%. There may be several bars to be glued, which makes the laminated timber durable and size-independable. For gluing bars with one another special two-component high-tensile glues are used which do not prevent wood from “breathing”. Pic.2 –... Читать дальше
Objects of cultural heritage after 2011 restoration

Objects of cultural heritage after 2011 restoration

Materials supplier: Mendeleev Ltd. Product used at the facade: Old paint Remover, FAS-109 Alpinist. Date of operation: May to December, 2011. Air temperature: from -15 to +25ºC. Relative air humidity: 65 to 97%. Year by year the architectural monuments of Saint Petersburg grow older and lose their initial view. Mendeleev Ltd. production company manufactures materials for various construction and restoration works: removers, varnishes, paints, solvents, antiseptics, hydrophobic and fixing agents. Owing to our products many architectural monuments were restored and became available for sightseeing both by the city residents and tourists. Fig.1 – 27-29, Mokhovaya St. Fig.2 – 73-75, River Moyka Embankment. Fig.3 – 77, River Moyka Embankment. Building facade complete renewal works were executed at this object. Restorers completely removed old paint layers from stucco with Old Paint Remover No.222 and Old Paint Remover No.158. ... Читать дальше