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BECKOPOX EP 386W/52WA
BECKOPOX EP 386W/52WA is an internally plasticized solid resin-Type 1-dispersion with improved shear stability, e. g. for water reducible fast drying anticorrosion primers and coatings for plastics. BECKOPOX EP 386W/52WA is an internally plasticized type 1solid epoxy resin as aqueous dispersion. Formulated together with adequate curing agents such as e. g. Beckopox EH 613w or VEH 2188w it is suited for corrosion protection primers with very good adhesion to most metallic substrates. It is also suitable for use in single coat and decorative systems for metallic substrates. For optimium corrosion protection it is recommended using 80 % of the stoichiometric curing agent not contain functional groups capable of reacting with epoxy groups.
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BECKOPOX EH 623W/80WA
BECKOPOX EH 623W/80WA is a hardener for water-reducible coatings on mineral and metallic substrates, hydryaulic epoxy mortars (ECC). BECKOPOX EH 623W/80WA is used in combination with the water emulsifiable liquid resins Beckopox EP 122w, EP 147w and other liquid resins such as Beckopox EP 140, EP 116 and the solid resin dispersions Beckopox EP 384w and EP 385w (preferably in combination with liquid EP-resins) to produce water-thinnable paints hardening at room temperature with good adhesion to all mineral substrates.Drying at elevated temperatures (> 60 °C) should be avoided. At such conditions traces of acrylonitrile will be released. If the hardener is diluted with water there may be stability problems at solid concentrations of less than 20 %, especially at storage temperatures above 35 °C. When pigments and fillers are being dispersed in the hardener, the temperature must not be allowed to rise above 40 °C. These paints retain a constant gloss irrespective of thinning ratio or the time between mixing and the end of the pot life. Beckopox EH 623w may be used in combination with Beckopox EP 128 as an additive for hydraulic mortars, the mechanical properties of the cured system being considerably enhanced by the additive.
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BECKOPOX EM 460/60IBX
BECKOPOX EM 460/60IBX is an excellent adhesion to steel and nonferrous metals, high corrosion protection, best recoatability. With polyvinylbutyral for one- and two-component washprimers, weldable shop primers. BECKOPOX EM 460/60IBX is used preferably in combination with polyvinyl butyral (PVB) for the production of wash primers and finish coatings. The ratio of Beckopox EM 460 to PVB should be 1 : 3 to 2 : 1. Wash primers based on this binder combination can be produced both as one-pack and two-pack systems. The solids content of primers based on polyvinyl butyral can be greatly increased by the use of Beckopox EM 460. It also improves adhesion and corrosion protection, especially in wash primers with chromate-free pigmentation. Primers based on the combination of Beckopox EM 460 with PVB cause no complications when overcoated with paints based on alkyd resins drying by oxidation, PVC mixed polymers, nitrocellulose and isocyanate-crosslinking acrylic resins. Even in the case of stoving enamels they cause no discolouration of the topcoat. Two-pack epoxy paints should be tested from case to case. Weldable shop primers Beckopox EM 460 is also suitable for the manufacture of weldable shop primers. In this case the PVB component should predominate in the combination. The effect of these primers on pore formation in the weld is slight, as is the odour problem, since no formaldehyde is given off.
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BECKOPOX EP 2384W/57WA
Beckopox EP 2384w is a type 1 solid epoxy resin as aqueous dispersion. Formulated together with suitable curing agents such as Beckopox EH 623w, EH 659w, VEH 2188w or VEH 2177w it results in rapid drying coating systems for mineral and metal substrates. The rapid drying property makes it possible to apply more coats within one working day. Dispersing of pigments and fillers can be carried out in Beckopox EP 2384w if the temperature does not exceed 40 °C. The formulated paint stability can be influenced by additives; the additives should not contain functional groups capable of reacting with epoxy groups.
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