MACROLIC 7333 HV
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Economical 2K Hydroxy functional resin specially for wood coatings with high viscosity.
PRINCIPAL PROPERTIES
MACROLIC-7333 HV is hydroxyl functional acrylic copolymer designed to crosslink at room temperaturewith polyisocyanate.
APPLICATION
- ECONOMICAL WOOD FINISH
CHARATERSTICS
- ECONOMICAL RESIN ESPECIALLY FOR WOOD COATINGS
- FAST DRYING TWO PACK COATING FOR THE INDUSTRIAL LACQUER SECTOR
- EXCELLENT FLOW & LEVELLING
- GOOD GLOSS
- GOOD HARDNESS
PHYSICAL CONSTANTS
| Viscosity as such in Brook Field RVT SSA / S – 28, RPM – 50 at 25°C Temperature | 60 – 80 Poise |
| Acid Value (mg KOH/gm) | 10 Max |
| Color (APHA/Pt-Co) | 20 Max |
| Hydroxyl Equivalent Weight | Approx. 600 |
| Hydroxyl Value (mg KOH/gm) | 85 - 95 |
SOLUBILITY
| Xylene | Complete Soluble |
| n-Butyl Acetate | Complete Soluble |
| Ethyl Glycol Acetate | Complete Soluble |
| Methyl Ethyl Ketone | Complete Soluble |
| n-Butanol | Complete Soluble |
| Ethyl Alcohol | Complete Soluble |
| MTO /LAWS | Not Soluble |
COMPATIBILITY
| MF – 910/268/970 | Compatible |
| UF – 8/9001 | Limited Compatible |
| Short Oil in Xylene/Toluene | Compatible |
| Long Oil in MTO/LAWS | Not Compatible |
DELIVERY FORM
| MACROLIC-7333 HV | 60 ± 2% in Xylene/Ethyl Cellosolve |
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 7333HV 60% based paints, at both ambient temperature and under lowbake conditions, the use of tin catalyst in the form of Di Butyl tin Di Laurite is strongly recommended
Solvents:
The solvents chosen for paints and lacquers based on MACROLIC -7333HV60% 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.