29
Gen
2013

SPECIAL PROCESSES – THE PROCESS OF PAINTING – cap. 4

Di Gianluca Gaggioli pubblicato martedì 29 gennaio 2013 in Prodotto pianificazione e progetti |

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Choice of paintbinders or resins for water-soluble or solvent cycle:

One of the most important components of the paint we’re going to investigate the following is the resin or better known as “bonding”, as it attaches to the lining over the chemical, physical and mechanical properties.

The types of binders which we will describe the find in the most important cycles of application of coating products that are:

Cycle water-soluble or solvent;

Cycle powder.

We briefly describe some of the characteristics of most binders used for the composition of paints, water-soluble or solvent per cycle (in polish).

acrylic resins;

The paint product based on acrylic resin, normally apply on a substrate treated with primer. The use of these products we find most in the automotive and household appliances.

Guarantees a good stability of gloss and color, a good light stability and good chemical resistance (hardness of the substrate), but have a poor adhesion to the substrate and a duration in time of less than many other types of resins.

epoxy resins;

The paint product based on epoxy resin can be used through the use of hardener (component bi product). The use of these products we find it more in the industrial sector. The use of these products is not suitable for applications intended for outdoor use.

Ensures a good adhesion, good chemical resistance and corrosion, but they have a poor stability of gloss and color and a duration limited in time when used in outdoor locations.

polyurethane resins;

The paint product based on polyurethane resin can be used through the use of hardener (component bi product). The latter, allows the hardening of the paint and the acquisition of chemical and mechanical characteristics.

The use of these products we find it more in industry.

Guarantees a good abrasion resistance, good stability and durability of the color, but have a poor resistance to moisture.

polyester resins

The paint product based on polyester resin can be used through the use of hardener (component bi product). The latter, allows the hardening of the paint and the acquisition of chemical and mechanical characteristics.

The use of these products is indicated for applications intended outside, as artifacts for architecture, agricultural machinery, etc..

Ensures a good UV resistance, good mechanical properties, good corrosion resistance (on a support well pretreatment), a high resistance to chemical agents.

As already said, the binders or resins can also reach 40% of the total weight of the product. The remaining part is usually composed of:

Solvents or diluents:

volatile compounds, added before application, to improve the application

Pigments:

insoluble substances, colored or not colored

Charges

inert materials used as fillers

Additives:

Catalysts, driers.

In the next chapter we further uses and

L'autore: Gianluca Gaggioli

Gianluca Gaggioli: coniugato, con tre figli tutti nati a breve distanza, non si sa come trovi anche il tempo di "dilettarsi" sulle tematiche di qualità e management. Rail Strategist - Rail Fire Fighting - da oltre quindici anni lavora nel ambito ferroviario e medicale nel ruolo di "Assicurazione Qualità e dei Sistemi per la Gestione della Qualità". Competenze specifiche: Gestione della Qualità Secondo le Normative EN ISO 9001, EN ISO 14001, BS 18001, COCS 30.5/DT Trenitalia, Schemes Entities in Charge of Maintenance (ECM), ISO 31000, SGSL, OT24, MOG, EN ISO 13485, IRIS (International Railway Industry Standard), Six Sigma, Kaizen, Auditor Sistemi Qualità Certificato 19011 1a / 2a Parte (Audit interni e fornitori) e Abilitazione Formatore RSPP ASPP, dal 2008 attività di consulenza aziendale in materia di Sicurezza sul Lavoro; DVR, POS, DUVRI, Progettazione piani per la sicurezza (organizzazione e gestione corsi lavoratori); da Giugno 2011 Editor in Chief di Organizzazione Qualità. .

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Questo articolo è stato pubblicato martedì 29 gennaio 2013 da Gianluca Gaggioli il martedì, gennaio 29, 2013 alle 11:48 ed appartiene alla categoria Prodotto pianificazione e progetti. Puoi seguire i commenti a questo articolo attraverso i feed RSS 2.0. Lascia un commento!

 

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