This is a CNSL Resin / medium is supplied in 100%,80%,70% solid.
The CNSL has got wide range of applicability for making raw materials for
1. Dark colored enamels.
2. Red oxide metal primers.
3. Redoxide both gloss and matt finishes.
4. Black enamel.
5. Red oxide.
6. Zinc chromate primer.
7. Olive green and anti corrosive paints.
olour : Reddish Brown
Clarity : Clear
Gel Tail : Absent
Viscosity (40% in MTO at 30 degrees) : 25 to 100 seconds
Finish on hegman gauge : 5+
Non Volatile : Solids as specified
Specific Gravity : 0.90±0.02
Gloss : 90 minimum
MTO Tolerance : 1:Infinite
Flexibility & Adhesion : Good
Surface Dry : 30 Minutes
Tack free Dry : 90 minutes
Hard Dry : 4-5 Hours
The film is resistant to water , acid (2% H2SO4) and alkali (1% sodium hydroxide) and 5% sodium bi-carbonate solution and gives good anti corrosive properties.
LEAD 0.5%,COBALT 0.1%, MANGANESE 0.2% as metals on the solid content of the resin are recommended. If required the proportion of the manganese can be increased upto 0.3% for better effects. After addition of the driers ageing for 24 hours is recommended
This product can be supplied as per customer choice if any or against different specification .
CNSL resins & varnish should not be ground with all types of inorganic pigments as a safety measure to avoid fattening & further polymerisation of the end product . to avoid this problem varnish & pigment should be ground separately in case of pigments like zinc chrome, persiun blue, lemon chrome etc.