Case story database

Search for Successfully Implemented Alternatives

You can use the free text search function to find information in the case story database. Most suitable are: substance name and other substance identifier (EC- and CAS-number). You can refine your search after first entry for sector-, function- and process-categories. The case studies are meant to serve as source of inspiration and ideas for substitution. The alternatives are constantly being developed further. We therefore recommend that you to check in each individual case whether an alternative is suitable for your applications and purposes. If you are aware of any other relevant information that is not mentioned in the current case story, please contact SUBSPORTplus.

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A safer alternative to protect wood from moisture.

This substitution example is based on a patent registration document. The invention relates to a mixture protecting wood from moisture. The mixture contains crude tall oil or another oil containing free fatty acids and/or resin acids. Present in the wood protecting mixture is also at least one other substance from a group including native neutral agents of wood and salts formed by di- or polyvalent cations. The details for how to make such a mixture is described in detail below.

Chemical treatment of rubber, wood, leather or metal which protects, preserves and renews the surface of the material. An alternative to carbon black.

This document describes a process for protecting, preserving and renewing surfaces, especially rubber and other natural and synthetic polymers including wood, leather, painted surfaces and metal. The material to be treated is soaked with an aqueous solution of substituted or unsubstituted dimethylpolysiloxane. This is done in several stages with other solutions such as diethylene glycol and/or glycerine. This treatment reduces the impact of deleterious effects such as ozone, ultraviolet radiation and environmental causes to the appearance of especially rubber parts used for example in automobiles.

Fire-resistant and flame proof coating for polymeric thermoplastics and thermoset resins.

A surface coating consisting of fire retarding and smoke suppressing constituents dispersed in an essentially non-toxic, water based adhesive binder. The entire invention therefore consists of six different functional groups which respective functions will be explained below, the different groups are: catalyst/initiator, expendable graphite, source of carbon which additionally forms water, a blowing agent, cement and ceramics.

Life cycle assessment of three paints

An assessment of environmental and occupational health impacts of a powdered paint, a solvent based paint and a water-based paint showed that xylene, titanium dioxide and TGIC are first priority to substitute. Beta hydroxy alkylamide is suggested as an alternative for TGIC . No successful chemical alternative for xylene was found, but other water based paint systems could be used. No alternative to titanium dioxide was suggested.

Fassadenreinigung mit Hilfe von Trockeneisstrahlung für die Restaurierung von Denkmälern in Prag

Fassadenreinigung kann mit Hilfe von Chemikalien oder durch das Abstrahlen mit verschiedenen Mitteln erreicht werden. Die chemische Reinigung erfolgt oft mit gefährlichen Stoffen, wie Dichlormethan oder Methylpyrrolidon. Sandstrahlung ist auf Grund von kristallinem Siliziumdioxid, ein karzinogener Stoff, gefährlich. Das Abstrahlen mit Trockeneis könnte eine sicherere Alternative sein. Ein Beispiel der Verwendung bei der Restaurierung alter Monumente in Prag wird vorgestellt.

Facade cleaning using dry ice blasting for monument restoration in Prague

Facade cleaning may be performed with chemicals or by using blasting with various media. Chemical cleaning is often done with hazardous substances like dichloromethane or methyl pyrrolidone. Sandblasting is hazardous due to the crystalline silica, a carcinogen. Using dry ice blasting may be a safer alternative. An example of its use in restoring ancient Prague monuments is presented.

Alternatives for cleaners for industrial surfaces

Alternative special cleaner can be identified by applying GISBAU (German hazardous substances information system for the construction sector). A strong alkaline cleaner (pH 13) can be replaced by an alternative with pH 9,5.

Surface treatment panels for walls and ceilings

Insurface treatment of panels for walls and ceilings (MDF-plates) an acid-cured primer and top-coating can be substituted with a water-based primer and an UV-cured top coating. This reduces the amount of coating used, reduces the solvent emissionby 96 % and reduces the amount and number of classified ingredients with carcinogenic and reprotoxic effects. The alternative still contains a small percentage of an additive that may cause cancer. Further research isneeded to eliminate this.

Surface treatment of plywood

Insurface treatment of plywood an acid-cured primer and top-by 94 % and reduces the amount and number of classified ingredients with carcinogenic and reprotoxic effects. The alternative still contains a small percentage of an additive that may cause cancer. Further research isneeded to eliminate this.

Alternative to dichloromethane in graffiti and paint stripping

Dibasic esters can be used as alternative to dichloromethane (DCM or methylene chloride) in graffiti and paint stripping as well as in other applications. They are not known to be potential carcinogens like DCM and they are much less volatile and flammable.

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