<< Optical Brighteners: recommended for leak detection and product identification when exposed to UV light.
| PRODUCT | COLOR INDEX NUMBER | COLOR IN SOLUTION |
| D-298 COLUMBIA BLUE |
Fls. Brightener 61 | Essentially colorless in daylight. Intense blue under UV light. |
| D-282 UV-BLUE |
Stilbene Type | Essentially colorless in daylight. Intense blue under UV light. |
| D-286 SKY BLUE |
Fls. Brightener 184 | Essentially colorless in daylight. Intense blue under UV light. |
| D-211 ICE BLUE |
Fls. Brightener 393 | Essentially colorless in daylight. Intense blue under UV light. |
| Supplied in dry form, these optical brighteners have broad application in adhesives; colored or uncolored coatings for identification; non-destructive testing of metal parts, and many other varied areas. Recommended usage level is approximately 0.1%. D-298, D-211 and D-286 are recommended for solvent systems and D282 for aqueous systems. D-298, D-211 and D-286 can also be used in a wide range of plastics at temperatures up to 550oF. |