MACROLIC 7055

High solid acrylic resin with low viscosity for general purpose industrial and maintenance coatings.

PRINCIPAL PROPERTIES

High Solids Thermosetting acrylic Resin used in combination with isocyanate hardener gives goodgloss and good gloss retention. High solids with low viscosity required lower amount of isocyanatehardener.

APPLICATION

• AIR DRYING

CHARATERSTICS

• FAST DRYING TWO PACK COATING FOR THE INDUSTRIAL LACQUER SECTOR
• GOOD HARDNESS
• EXCELLENT FLOW & LEVELLING
• GOOD GLOSS
• HIGH SOLIS WITH LOW VISCOSITY REQUIRE LOW ISOCYNATE HARDNER.

PHYSICAL CONSTANTS

Viscosity as such in Brook Field RVT/S – 4, RPM – 20 at 25°C Temperature	22 – 46 Poise
Acid Value (mg KOH/gm)	10 Max
Color (APHA/Pt-Co)	20 Max
Hydroxyl Equivalent Weight	Approx. 1020
Hydroxyl Value (mg KOH/gm)	Approx. 55

SOLUBILITY

Xylene	Complete Soluble
n-Butyl Acetate	Complete Soluble
Methyl Ethyl Ketone	Complete Soluble
Ethyl Glycol Acetate	Complete Soluble
n-Butanol	Complete Soluble
Ethyl Alcohol	Complete Soluble
MTO /LAWS	Not Soluble

COMPATIBILITY

Short Oil in Xylene/Toluene	Compatible
MF – 910/268/970	Compatible
UF – 8/9001	Limited Compatible
Long Oil in MTO/LAWS	Not Compatible

DELIVERY FORM

MACROLIC – 7055

70 ± 2% in C-9

REACTION RATIO

The reaction ratio is calculated from the respective equivalent weight or hydroxyl and isocyanate content of the reactants.Conventional polyisocyanates such as Desmodur N75 and AR - 75 can be used successfully.

CATALYSTS

To increase the initial rate of cure of MACROLIC 7055 – 70% based paints, at both ambient temperature and under lowbake conditions, the use of tin catalyst in the form of Dibutyl tin Dilaurate is strongly recommended.

SOLVENTS

The solvents chosen for paints and lacquers based on MACROLIC -7055 70% should be free of water and should notcontain groups that react with isocyanates. Ester and Ketones are True solvents and aromatic hydrocarbons are used as diluentsfor this system.