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APPLICATION :
LK Ink is a ready-to-use water-based, totally-inorganic white ink/coating that is designed to ‘dry’ to a water-resistant, tough and abrasion-resistant coating on all substrates. The ink/coating may be applied like housepaints – most often by brush or air-spray techniques. Substrates should be clean and free of dust, dirt, oils, or other contaminants before coating with the paint.
With brush application, either a bristle-brush or a foam-rubber brush can be used.
For pressurized air-spray systems, good results are obtained typically by usi gressure of 29-44 psi [2-3 bars] with a ‘standoff’ distance [nozzle to substrate] of about 12 inches [30 cm] and a substrate temperature of 150-200 C [300-400 F].
The LK Ink can be used undiluted or can be diluted with water if necessary.
The LK Ink is ideal for painting/ coding / marking / identification and is usable on all types of substrates (metal or ceramic) -- from room temperature to over 800 C [over 1475 F], even some thin-sheet, flexible metal substrates.
KEY ADVANTAGES:
• Adherent to metals and ceramics with thermal cycles.
• Nearly water-insoluble on room-temperature drying – completely water insoluble after heating to approx. 100-150 C.
• Minimal outgassing on heatup … with water as the species evolved.
• Hard, abrasion-resistant, tough coating
• High-temperature stable. Does not glaze, melt, run, become tacky or chalk off.
• Easily applied, like house paint
• Water-based and water-dilutable; utensils are readily cleaned up with water [before drying]
SPECIFICATIONS:
Color …………….. White
Specific Gravity …. Not determined
Settling …………… Does not appreciably settle out
pH…………………. 11-12
Viscosity ………….. Like milk
Coverage ................ Typically 200 to 600 sq.ft. per gallon [5-15 sq.m. per liter], varies depending on thickness applied
Use-Temperatures... To over 800 C in air, vacuum, inert/nitrogen.
Substrates ………….. Glass, metal, ceramic
Shelf Life ………….. Over one year.
USE NOTES:
• Resuspend the paint before use; generally, LK Ink is well-suspended such that only minimal shaking or stirring is required.. If diluting, distilled or de-mineralized water is preferable.
• Clean surfaces to be coated of any oils, grease, dirt, scale etc. Application may be by brushing, air-spraying, or dipping [although care must be taken to insure that the coating is totally dry and free from moisture if dipping is utilized {note: a dipped coating dries from the outside and may ‘appear’ dry while still containing moisture}].
• Allow to dry thoroughly before use. It is OK to apply more layers after drying each one.
Never contact wet coatings with molten metals, glasses, slags, etc.. The thoroughly-dried coating is
ready for use in room-temperature to high-temperature application areas.
• This water-based coating is free of solvents and may be diluted with water as needed.
Spraying:
• Resuspend and then dilute as needed.
• Preferably use pressurized air-sprayer [P=30-70 psi or 2-5 bars]
• Use standoff distance of 6-12 inches [15-30 cm]
• Heating the substrate to 150-200 C [300-400 F] improves coating application.
• Use short bursts of spray [not continuous spraying]; dry completely
before more applications; cover all surfaces that will ‘see’ molten metal.
Brushing:
• Dry each layer completely before applying more layers.
STORAGE and SHELF LIFE:
The coating, LK Ink, should be protected from freezing, using storage temperatures of more than 5 C. Keep paint containers closed to avoid liquid evaporation/loss. The coating, LK Ink, is water-based and free-of-solvents -- has a shelf life of > 1 year. Consult MSDS before use
PRICING:
Wide-mouth 1-gallon plastic pail ------------ $150/gallon 
5-gallon pail (21.3 kg) ------- $675 [$135/gallon]
CAUTION: DO NOT CONTACT WET COATINGS WITH MOLTEN METALS, GLASSES, SLAGS AND THE LIKE.
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