Author:
Publisher:
ISBN:
Category :
Languages : en
Pages : 0

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Author: Sward
Publisher: ASTM International
ISBN: 9780803100992
Category : Technology & Engineering
Languages : en
Pages : 618

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Author: Charles W. Glancy
Publisher:
ISBN: 9780803188914
Category : Artists' materials
Languages : en
Pages : 11

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MIXING A PIGMENT WITH LINSEED OIL AND MAK-ing a paste is a preliminary test applied to pigments that has been in use in a systematic manner for almost a century and perhaps even longer in a less defined manner. This proved to be a practical means to qualitatively characterize the approximate color and texture of pigments quickly with materials and tools readily at hand. The work of mixing and the flow properties of the resulting paste provided an estimate of the rheological impact of a new pigment under consideration or a proposed pigment composition change. Thus, valuable insight of the dispersion performance of a pigment or formulation change in a mill base could be estimated. Further extension of the test was found to be useful in predicting the consistency of finished products. Mills [3] indicated that if equal volumes of oil absorption paste are mixed or thinned with equal volumes of thinners, the paints prepared have equal resistance to flow, viscosity, or consistency. While the application of oil absorption values as a formulation tool originated many years ago in the age of oil- and alkyd binder-based paints, the ability to use this information to calculate the binding power index of latex binders, latex porosity index of latex paints, and free binder continues to demonstrate the value of pigment oil absorption data today to solve coatings formulation problems. This is especially true for the field of interior and exterior architectural paints. If the oil absorption test is conducted in a quantitative manner, the result is a measure of the oil needed to wet the surface area of the pigment and to fill the voids in and among the pigment particles. If this result is achieved, profoundly important information is obtained of high value to pigmented paint and coatings development. A number of relatively simple test procedures have been developed to measure oil absorption of pigments. The difficulty generally to successfully applying these tests has been in two areas. First, great care and effort is required to reach and interpret the oil absorption end point. Secondly, one must obtain particle separation in the test to the same degree as achieved with the formulation in the pigment dispersion manufacturing process to which oil absorption value is to be related. Two ASTM pigment oil absorption test methods are available, which cover two incorporation methods. The different methods result in different end points and therefore different oil absorption values. Stieg [4] found that if the oil absorption value is determined by the ASTM D281 (Test Method for Oil Absorption of Pigments by Spatula Rub-Out) and expressed on a volume basis, it is proportional to the critical pigment volume concentration (CPVC) of alkyd wall paints. Later he and others demonstrated the extension of oil absorption values to calculate the CPVC of pigment compositions to predict the performance of latex paints and other calculated factors useful in formulating these coatings. Gardner-Coleman oil absorption, ASTM D1483 (Test Method for Oil Absorption of Pigments by Gardner-Coleman Method), values have been related to pigment paste viscosities and found useful in estimating consistencies by comparison to a reference standard pigment behavior in the same dispersion machinery. A number of non-ASTM methods for the determination of oil absorption values have been reported in the literature and a few will be listed below.

Author: H. Panda
Publisher: ASIA PACIFIC BUSINESS PRESS Inc.
ISBN: 817833142X
Category :
Languages : en
Pages : 278

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Paints and their allied products like varnishes, enamels, pigments, printing inks and synthetic resins protect assets from corrosion. These are increasingly being used in automotive, engineering and consumer durable sectors. Paint testing can be done in a number of different ways. The fact of the matter is that many industries use several different paint testing methods in order to ensure accurate results. Paint should be tested in a wet form for particular properties but also in the dry form. Testing of paints generally falls into three categories: testing of the raw materials, testing of the finished product and performance testing using accelerated weathering and other simulation type methods of evaluation. Coatings technologists deal with interfaces of all classes gas liquid as in an aerosol spray liquid liquid, as in an emulsion gas solid, as in a dry pigment before its immersion in a vehicle liquid solid, as in a pigment dispersion and solid solid, as when the crystal faces of two different pigment particles are in tight contact. Paint scientists are particularly interested in the formation of liquid solid interfaces that are stable in the package, that is, in the permanent replacement of the air at the air solid interface of the pigment by the vehicle to give the liquid solid interface of the dispersion. In coatings and similar products, the criteria for best performance particulate ingredients; inorganic, organic, extender and metallic flake pigments and dispersed phase of latexes depends on the size and shape of particles composing the particulate materials. The purpose of paint testing is to help and ensure that the minimum requirements for ingredients and material characterization are met by the manufacturer on a batch basis, and to help ensure that the formulated product will provide satisfactory performance in the environment. Handbook on Paint Testing Methods explains about aspect of gloss, specular glass, sheen, contrast gloss, absence of bloom gloss, distinctness of image gloss, specular gloss evaluation, specular reflectance, geometric considerations, instrumentation, goniophotometers, specular glossmeters, basic factors producing hiding power, refractive indexes of white pigments, refractive indexes of organic pigments, films for testing preparation of films for test, pigments and extenders, metallic flake pigments, latexes, methods for determining particle, treatment of data, particle size with light microscope etc. This handbook elaborates the different testing methods of paints with an understanding of the various tests that can be performed on product performance. This handbook will be very helpful to its readers who are related to this field and will also find useful for upcoming entrepreneurs, existing industries, technical institution, etc. TAGS Paint and Coating Testing, Paint Adhesion Testing, Paints & Coatings Materials Testing, Paint Testing Methods, Paint Testing Equipment, Coating Testing Methods, Paint Testing, Commercial Paint Testing, Paint Industry in India, How to Start Paint Industry in Small Scale, Specular Glass, Hiding Power, Basic Factors Producing Hiding Power, Hiding Power of Colored Pigments, Van Eyken-Anderson Method, Hiding Power Versus concentration for Titanium Pigments, Formulation of Paints from Predetermined S-Values, Back Factors Producing MC and TS, Spatula and Muller Methods, Laboratory Ruller Mill,, Laboratory Ruller Mill, Npiri Method for Colored Pigments, Tappi Method of Colored Pigments, Tintograph, ASTM Method for White Pigments, Npiri Method for White Pigments, NJZ Method for Zinc Oxide and Titanium Dioxide, Dupont Method for Titanium Dioxide, Reynolds Constant Volume Method, Centrifuge Methods for Specific Gravity of Pigments, Paint Testing Procedure, Test Methods for Paints, Methods For Testing Paints, Method for Cellulose Derivatives, Band Viscometer, Bubble Viscometer, Gardner-Holdt Bubble Viscometer, Surface Tension Measurements, Shadow Method, Tilting Plate Method, Displacement Cell Method, Surface Energetics, Particle Size Measurement, Oil Absorption of Pigments, Methods for Determining Oil Absorption, Films for Testing Preparation of Films for Test, Preparation of Films by Flowing, Preparation of Films by Dipping, Measurement of Film Thickness, Mechanical Properties of Films, Hardness and Related Properties, Mechanical Pencil Method, Abrasion Resistance, Classification of Test Methods, Methods Using Loose or Falling, Wet Abrasion Methods, Gardner Wet-Abrasion (Washability) Machine, PEL Abrasion Tester, Adhesion, Method of Removal, Knife Removal Methods, New York Club Chisel Adhesion Test, Tensile Strength and Elongation, Chemical Resistance, Battelle Chemical Resistance Cell, Bratt Conductivity Cell for Chemical Resistance, Fire Retardance Bratt Conductivity and Heat Resistance, Houston Heat Resistant Tester, New Jersey Zinc Company Heat Resistant Tester, Npcs, Niir, Process Technology Books, Business Consultancy, Business Consultant, Project Identification and Selection, Preparation of Project Profiles, Startup, Business Guidance, Business Guidance to Clients, Startup Project, Startup Ideas, Project for Startups, Startup Project Plan, Business Start-Up, Business Plan for Startup Business, Great Opportunity for Startup, Small Start-Up Business Project, Best Small and Cottage Scale Industries, Startup India, Stand Up India, Small Scale Industries, Paint Adhesion Testing Business Ideas You Can Start on Your Own, Indian Paint Testing Industry, Guide to Starting and Operating Small Business, Business Ideas for Paint Testing, How to Start Paint Testing Business, Starting Paint Adhesion Testing, Start Your Own Paint Testing Business, Paint Adhesion Testing Business Plan, Business Plan for Paint Testing, Small Scale Industries in India, Paint Adhesion Testing Based Small Business Ideas in India, Small Scale Industry You Can Start on Your Own, Business Plan for Small Scale Industries, Profitable Small Scale Manufacturing, How to Start Small Business in India, Free Manufacturing Business Plans, Small and Medium Scale Manufacturing, Profitable Small Business Industries Ideas, Business Ideas for Startup

Author: George G. Sward
Publisher: ASTM International
ISBN:
Category : Paint Materials
Languages : en
Pages : 607

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Author: American Society for Testing Materials
Publisher:
ISBN:
Category : Linseed oil
Languages : en
Pages : 205

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Author:
Publisher: ASTM International
ISBN:
Category :
Languages : en
Pages : 921

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Author: Thomas M. Kaneko
Publisher: ASTM International
ISBN: 9780803104136
Category : Technology & Engineering
Languages : en
Pages : 198

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Fhosphrus-based anionic surface-active agento and their role in agrochemical formulation; seed tretment formulation; development of a protocol; evaluation of factors affcting tank mix compatibility of pesticide combinations; a metho for emulsion aptimization through computerized regression ;a small-scale system to evatuate anti-foam performance; mitial studies on.the effects of droplet size and eletrostatics on spray deposition efficoncie; efficacy of insecticida applied ultra-low volume in vegetable oils; use of electrostaties, rotary atomizers and vegetable oils in low-volume ground appication; control of spruce budworm by ultra-low-volume application of an isecticide suspension

Author: A. K. Kulshreshtha
Publisher: iSmithers Rapra Publishing
ISBN: 9781859572498
Category : Technology & Engineering
Languages : en
Pages : 584

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Author: American Society for Testing and Materials
Publisher:
ISBN:
Category : Materials
Languages : en
Pages : 852

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