A. Yes, depending on the particular series of ink, we may be able to recommend an alternative thinner. Please call the Technical Service Department at 1-866-340-3579 and speak to a technical service representative for assistance. Thinners reduce viscosity, promote good ink flow and ultimately will evaporate out of the printed ink film.
A. The outdoor durability will depend on many factors:
Ink film thickness and degree of curing
Color formulation of the ink, such as adding large amount of mixing clear or white to the ink or mixing colors together
Substrate type and age
Mounting angle or directional orientation
Exposure to excessive abrasion (for example, brush car washes)
In comparing the durability of inks, factors are the pigment used in each color (fade resistance to sunlight), as well as the resins utilized in each ink series (overall durability against sun, rain, wind, etc). Many Nazdar inks are recommended for various levels of exterior exposure while other series are for indoor use only. Ink series that have pigments selected for outdoor durability, such as 1600, 1800, and 1900 Powerprint Series, can typically last 1 to 2 years with an overprint clear. Inks for 5 year durability, such as 3500 Series, can be found on fleet marking decals and have been associated with Avery Warranty applications, which guarantees durability when a specific ink, substrate and printing procedure are used.
Please consult the Technical Data Sheet on our web site Nazdar.com for the ink series of interest or contact a technical service representative at 1-866-340-3579 for assistance on weathering information.
A. No, that would not be possible. You must cure our UV inks in a commercially manufactured UV curing unit that has been specifically designed to generate the proper amount of energy and wave length necessary to induce polymerization of the ink film. UV light bulbs or sunlight may cure the ink somewhat over time, maybe to a "dry to the touch finish" however, the ink film will never become completely cured and adhesion to the substrate will be compromised.
A. No, we do not manufacture reflective inks. However, we do make transparent inks that are printed on reflective vinyl films for road sign and other decal applications. We also distribute 3M's 8000 Series reflective textile ink that is used extensively in the safety garment industry. Reflective inks are based on glass bead technology.
A. All solvent based inks should be used in well ventilated environments. Please consult our MSDS on the Nazdar web site for specific health information or call 1-800-677-4657 (INKS) and ask for a representative in Nazdar's Regulatory Department.
A. Screen dry in is caused by solvent evaporation and can be minimized by adding a slow thinner (retarder) to the ink and printing as quickly as possible. It is also important to flood the image area with a medium pressure flood stroke to drive the ink down into the stencil gasket immediately after finishing the print stroke. The screen should never be left un-flooded. Moving air should not be permitted to pass over the screen such as a fan or an open door. Air in motion accelerates solvent evaporation. We also sell a gel retarder, CARE 53 that can help in preventing this condition.
A. All of our screen solvent based inks are useable for 48 months from the date of manufacture and all UV screen curable inks are useable for 24 months, as long as the inks have been stored at room temperature with the lids firmly in place. Generally speaking, as long as the inks are still in a fluid condition they should be usable even longer, but we would recommend doing a test print.
The date of manufacture can be found in the 8 digit lot number. The first digit identifies the manufacturing location, the second digit identifies the year and the third and fourth digits identify the month. For example, a lot number that reads 68095555 tells us that it was manufactured in September of 2008. A shelf life letter is available at www.Nazdar.com. Or go to www.nazdar.com and click on “Tech Support”, and then on “Shelf Stability Letter”.