MACROLIC 8649
Download Technical Data Sheet
High solid acrylic resin for economical top/base coat for automotive finishes.
PRINCIPAL PROPERTIES
MACROLIC-8649 is hydroxyl functional acrylic copolymer designed to crosslink at room temperaturewith polyisocyanate and at elevated temperature with Butylated MF Resin.
APPLICATION
- PLASTIC COATING
- AUTO REFINISH
CHARATERSTICS
- HIGH SOLIDS RESIN FOR THE INDUSTRIAL LACQUER SECTOR
- TOP COAT & BASE COAT FOR AUTOMOTIVE
- EXCELLENT FLOW & LEVELLING
- GOOD GLOSS
PHYSICAL CONSTANTS
| Viscosity in 40% Solution in Mix Xylene at 30°C Temperature in Ford Cup B-4 | 20 – 30 Second |
| Acid Value (mg KOH/gm) | 8 Max |
| Color (APHA/Pt-Co) | 20 Max |
| Hydroxyl Equivalent Weight | Approx. 750 |
| Hydroxyl Value (mg KOH/gm) | Approx. 75 + 5 |
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
| 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-8649 | 70 ± 2% in Xylene |
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 8649 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 -864970% 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.