 Thinners
Occasionally, we are asked questions about thinners and their
use. The following information answers the majority of questions
we are normally asked. We have the same information on a "Thinner
Information Sheet". They are available for your customers
- just call us and ask for a supply!
Solvents should be stored and handled according to OSHA regulations
for flammable liquids, CFR29- Code of Federal Regulations - Paragraph
1910.106.108.
Generally, varnishes are resin systems dissolved in solvent.
The following suggestions should help eliminate varnish clouding
and curdling when solvents are added, especially in winter months.
- When adding solvent, be sure that the temperature of solvent
and varnish is roughly the same. If the thinner or varnish is
stored in an unheated area, bring it inside a day or two ahead
of time and check the temperature before mixing.
- Mix in not more than 10% thinner at one time. If more than
10% thinner is required, it is wise to add it in two or more
parts, mixing well after each other.
- Add thinners slowly with strong agitation as soon as possible
to assure thorough blending. High concentration of thinner to
resin can cause a white cloud. If this condition is allowed
to remain without mixing for any length of time, it may be difficult
or impossible to re-dissolve the material.
| Thinner # |
Type Solvent |
Tag Closed Cup Flash Point, °F |
|
| T-25 |
Methyl Acetone |
28° (Open Cup) |
| T-26 |
Methyl Ethyl Keytone |
28° |
| T-27 |
Special Dolph Thinner |
40° |
| T-50 |
Mineral Spirits |
100° |
| T-100 |
VM&P Naphtha |
50° |
| T-110 |
Special Dolph Thinner |
110° |
| T-170 |
Special Dolph Thinner |
80° |
| T-200 |
Toluol/Toluene |
40° |
| T-200X |
Xylol/Xylene |
80° |
| T-220 |
Special Dolph Thinner |
40° |
| T-230 |
Special Dolph Thinner |
105° |
| T-300 |
95% Denatured Alcohol |
57° |
| T-351 |
Special Dolph Thinner |
57° |
| T-352 |
Special Dolph Thinner |
80° |
Return to Tech Tips
|
