B537/0

2K SEMI-GLOSSY EPOXY ENAMEL CONVERTER

GENERAL CHARACTERISTICS
Converter used to create bi-component epoxy enamels, made from loads ground in a pure epoxy resin and a nylon adduct as catalyser.

USE SECTORS
Indicated to be cut with concentrated pastes to create epoxy enamels to protect industrial plants. These products offer excellent resistance to water, alkali and solvents, good resistance to acids and outdoors in an industrial ambient (despite the typical crumbling of products of this kind).

CATALYSER
Standard: B592
Mixing ratio: 20% by weight

HOW TO USE
Converter B537/0 = 80/70 pp
Concentrated pastes = 20/30 pp
Catalyzer B592 = 20 pp
Diluent B311 = 25 pp
Application viscosity = 25″ +/- 5 FC4
Pressure = 4 ate
Airbrush nozzle = 1.4

DRYING
24 h at 20°C and 50% U.R.
or 1h at 60°

POT LIFE
8 – 12 hours at 20°C.

ADVICE ON APPLICATION
Before applying to cement structures, we recommend checking there is no surface humidity and then cleaning carefully with a brush. When applying to metal surfaces primer with epoxy or epoxy-vinylic bases.
The product must be applied at room temperatures and humidity levels that do not compromise end results. It must not be applied if relative humidity exceeds 80% and at temperatures below 10°C.
Chemical resistance should be checked after 7 days.

CHEMICAL RESISTANCE
to solvents: resistance to aliphatic hydrocarbons (benzenes, mineral resin) is very good; whilst aromatic hydrocarbons (toluene, xylol) cause the film to swell slightly with contact, but the swelling disappears when evaporation is over.
Strong solvents (ketones, acetates and low boiling alcohols) cause considerable swelling which often, based on contact duration, is not reversible.
to alkalis: resistance is also very good to soda, ammonium and potash solutions.
to acids: like all epoxy based resins resistance is limited, though occasional sprays are usually tolerated.
to greases, cooling and hydraulic oils: resistance going from good to excellent related to the liquid’s chemical composition.
to aggressive atmospheres, outdoors: products tend to crumble and turn yellow, with aesthetic surface debasement, though keeping their protective power.
to heat: dark colours resist up to about 100°C with an opacification effect, while light colours tend to get darker.

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