All Iron Oxide pigments are very chemical resistant. Only in very highly concentrated acids are these materials soluble. Mixed Metal Oxides and Chromium Oxide Greens are also very chemical resistant. The only materials that Hoover Color offers with limited chemical resistance are the Tuscan Reds and Orange and the Van Dyke and 925 Browns.

The term lightfastness is defined as the ability of a pigment to resist fading after exposure to sunlight. Almost all of the pigments that Hoover Color sells are lightfast. This includes all of our Iron Oxide Pigments, both the Naturals and Synthetics, Chromium Oxide Greens, Mixed Metal Oxides, BC-35 Lampblack Substitute, and Bone Blacks. Most prehistoric art uses the same mineral pigments as those sold by Hoover Color.

Most of the pigments that Hoover Color markets are heat stable in most applications, with the exception of two important types of material. These include any pigments based on Yellow or Black Iron Oxides. Yellow Iron Oxides, FeO-OH, will begin to change into Red Iron Oxides at temperatures above 350 degrees Fahrenheit. Black Iron Oxides, Fe304, will begin to change into Red Iron Oxides at temperatures above 300 degrees Fahrenheit.

All of the pigments that Hoover Color markets are compatible with water-based systems, as well as any water reducible or solvent based systems.

Early in our evaluation of MatCon® performance, we consulted Dr. Henry Haxo, then President of Matrecon, Inc. about testing for chemical resistance. Using his previous experience in developing performance standards for geomembranes, we devised a testing program to evaluate the resistance of MatCon® to attack by leachate from municipal solid waste.

Painted surfaces are likely at some time to come in contact with chemicals, which react with and thus adversely affect the characteristics of the painted product or its properties in use. The most common form of chemical attack is from acidic or alkaline media. E.g. certain resin systems in the paint industry are cured by a catalytic process set of by acidic conditions. The acidic reagents present must not affect pigments used in these systems.

Yes, any of Hoover Colorâ??s pigments can be combined with other pigments; this is how they are normally used. Most often the pigment is combined with the white pigment Titanium Dioxide to produce a tint shade. This process is often used when a gray color is desired. Often color formulators will make a gray by combining a carbon black with a TiO2 white and shading to the tone of gray desired.

For information regarding the chemical resistance of Teflon® please see our Chemical Compatibility Data.

Physical properties of a substance are properties that have everything to do with the substance's appearance. Chemical properties are properties that are often used in chemistry, to address the state of a substance. Physical and chemical properties can tell us something about the behaviour of a substance in certain circumstances.

Facestocks are inert to most acids, gases and salts, and are as strong wet as dry. They are dimensionally stable between 0% and 100% relative humidity at constant temperatures. Service temperature range is -40º to 250ºF. Custom materials are available for severe temperature applications.

While details of our production are closely held secrets, some general statements can be made. Our pigments are produced by the high temperature calcination of high grade metal oxides in a kiln according to strict time and temperature profiles. The resulting mixed metal oxide is milled using a variety of high-energy techniques in order to reduce the particle size. The products receive a final QA check and are stored for shipping.

mixed metal oxides, Shepherd Color pigments are technically semi-conductors. At most temperatures they have high resistance to current, in fact higher than most other inorganic or organic pigments.

Shepherd Color pigments typically find use in demanding applications where temperature, chemical, and weathering resistance are critical. Customers depend on Shepherd Color pigments in such diverse applications as coil coatings (weatherability and color consistency), engineering plastics (temperature stability and dispersability), and glass enamels (temperature stability).

Shepherd Color pigments are among the most durable materials known to man. They are extremely resistant to chemicals, solar radiation, and heat. For this reason, they are used in products that are warranted to maintain their color outdoors for 25+ years. Specific weathering data is available upon request.

A PVC liner will survive exposure to a large variety of chemicals, even though the chemical could have some effects on the liner, without causing the liner to fail. If you have a specific concern, give us a call at 800-524-8672.

Koroguard GF and Chemguard GF offer the highest chemical resistance while other products offer moderate to low resistance. One need to know the PH value of the chemical or concentration of the chemical before selection of suitable product for the application.

For food contact applications, the FDA provides approval of pigments based on their color index number. Shepherd Color produces the following pigment types that can be used: C.I. Pigment Black 28, C.I. Pigment Brown 24, C.I. Pigment Blue 28, C.I. Pigment Green 50, C.I. Pigment Yellow 53, C.I. Pigment Black 12. With these pigments, a wide range of colors can be produced. Please contact Shepherd Color for the best pigment for your application.

NFA does not specifically approve pigments, but whole parts for water systems. We can provide you with documents that will allow parts containing select Shepherd Color pigments to meet NFA requirements.

Shepherd Color pigments are some of the most heat resistant colorants known and find use in glass enamels, high heat coatings, and engineering plastics. They are stable in most systems up to their calcination temperature (>1400F/800C). Please review our technical data sheets for each pigment's heat stability or contact a Technical Representative to discuss your specific application.

Yes, you can. In fact, Misty of The Misty Mountain Co., graciously offers her recipe and instructions. Thanks, Misty! Here's Misty's recipe: Mix well after each addition and then place the salts on a paper plate and allow to dry. When the salts are thoroughly dry, store in an airtight container.

When most people think of Hoover Color, they think of browns. However, Hoover Color offers a wide range of inorganic pigments including yellows, oranges, reds, brown, greens, blues, violets, and blacks.

There are several different physical and chemical properties, which are often used alternately. We can name the following: Density. The density of water means the weight of a certain amount of water. It is usually expressed in kilograms per cubic metre. (physical) Thermal properties. This refers to what happens to water when it is heated; at which temperature it becomes gaseous and that sort of thing. (physical) Conductivity. This means the amount of electricity that water can conduct.

Palm oil contains equal amounts of saturated and unsaturated fatty acids. The saturated fatty acid portion of palm oil is made up of 44% palmitic acid and 5% stearic acid. The mono-unsaturated portion of palm oil is composed of oleic acid and accounts for 40% of its composition. 10% of palm oil is made up of the poly-unsaturated fatty acid, linoleic acid which is also an essential fatty acid.

Ask what materials are presently being used to transfer the fluid or if there is a manufacturer’s recommendation that is on the fluid container, etc. B. If there is no other information on this chemical, you will have to check with the manufacturer of the fluid and find out what is recommended.

The composite materials are highly water, wheater and chemicla resistant. This resistance is also the most influenced by type of used resin. A representative choice of chemicals is given in the table. A veil is added into the profiles under their surface. This veil protects within UV inhibitors degradation of materials.

bottom line on pycnogenol? Pycnogenol references SOURCES (found in part 4) Online resources: diabetes-

Owners make a wise business decision to sell property in a one-day sale rather than continuing to incur carrying costs and negotiating in a manner associated with conventional marketing. Sellers are motivated to sell and offer you an opportunity to purchase desirable property at a substantial discount.

Often vendors want 'discreet marketing', this means that the property is often not advertised in local or national newspapers, not in the Estate Agents window, not on the internet, no 'for sale' board outside and may not even have a brochure produced. These are the properties that you will not get to hear about!

Furniture and kitchen appliances are not included in the sale price, but will be available as furniture packages.