ASTM 1544 and ASTM 5386 provide some information about the standard method to assess the color of any liquid materials. Objective measurements can also be done with color spectrophotometers that give reliable data on a consistent basis. However, visual tests have been established by comparing the sample to a known standard. There is no existing standard test method specifically for liquid resin. Hence, it could be important to assess the appearance of the resin to ensure the quality of the resin as the change can indicate contamination or impurities in the raw material, process variations caused by heating and oxidation, or degradation of products exposed to weathering over time. A change in color indicates a change in wavelength absorption of visible light by the resin. Liquid resin comes in forms of different appearances commonly described as clear, transparent, translucent, or in different colours, as an example showed on table detailed below:Īppearance assessment is a simple and easy way to estimate the quality of the liquid resin. Most popular liquid resin uses in Potting system are liquid rubber cured under room temperature, typical values that you can find on TDS: Appearance: The most values to test in a resin are focused in its performance and physical properties as original form before cured process and after it when all resin has been cured at final application. Main function of the resin is to be cured by evaporation of solvent, by reaction of two component (resin and catalyst) by energy process of curing (UV light or LED). Main use is as a carrier of different pigments and fillers and should be formulated under premise that compatibility with solvent and rest of raw materials than are on formula and the end uses of the mixing. ![]() ![]() ![]() On industry, Natural resin are still used in some applications but synthetic resins are more common where manufacturers develop specific product for each particular technical demand. Resins are used in a lot of formulations of Coatings, Inks, Paints, and dispersions of fillers, quartz, pigments that have functional application.Ī thick, sticky substance that is produced by some trees and that becomes yellow and hard after it is collected, or any of various similar substances produced by a chemical process for use in industry:Īny of various solid or semisolid amorphous fusible flammable natural organic substances that are usually transparent or translucent and yellowish to brown, are formed especially in plant secretions, are soluble in organic solvents (such as ether) but not in water, are electrical nonconductors, and are used chiefly in varnishes, printing inks, plastics, and sizes and in medicine.
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