MACROLIC 8246
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High Solid Acrylic resin providing high gloss auto refinish exhibiting excellent mechanical and chemical properties
PRINCIPAL PROPERTIES
MACROLIC-8246 is a hydroxyl functional acrylic resin developed for use in twocomponent systems when cured with polyisocyanate.
APPLICATION
- AUTO REFINISH
CHARATERSTICS
- High gloss
- Excellent Hardness
- Excellent Weathering Properties
- Excellent Chemical and Application properties
- Longer Pot life
PHYSICAL CONSTANTS
| Viscosity as such in Brook Field RVT SSA / S – 28, RPM – 50 at 25°C Temperature | 40 – 80 Poise |
| Acid Value (mg KOH/gm) | 12 Max |
| Color (APHA/Pt-Co) | 100 Max |
| Hydroxyl Equivalent Weight | 400 + 25 |
| Hydroxyl Value (mg KOH/gm) | 140 - 150 |
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 | Compatible |
| Short Oil in Xylene/Toluene | Limited Compatible |
| Long Oil in MTO/LAWS | Not Compatible |
DELIVERY FORM
| MACROLIC-8246 | 70 ± 2% in Butyl Acetate |
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-8246 70% 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-824670% 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.