Abrasion Resistance Test:

This test helps in determining the ability of a coating to resist degradation due to mechanical wear and tear by hard and rough objects. Abrasion resistance can be intensified by the inclusion of surface changing additives.

Adhesion:

 Adhesion testing in the paint and coating industries is necessary to ensure the paint or coating will adhere properly to the surface to which they are applied

 Test Method: IS: 101 (P-5) (SEC-2)1988 

Alkali Resistance of Paint:

This test helps in determining the degree to which a paint resists reaction with alkaline materials such as lime, cement, plaster, soap, etc. This is an important property for paints applied in bathrooms, kitchens and laundries.

 Test Method: IS: 427-2005, IS: 428-2006 

Cass Test:

This test helps in determining the corrosive performance of decorative copper/nickel/chromium or nickel/chromium coatings on steel, zinc alloys, aluminium alloys, and plastics designed for severe service and testing of anodized aluminium.

Chemical Resistance Test:

This test helps in determining the ability of a coat to resist chemical deterioration or staining.

 Test Method: IS: 13630 (P-8) 2006, EN 105-106 

 

Chip Resistance:

This test helps in determining the resistance of surface coatings (paint, clear coats, metallic plating, etc.) to chipping caused by the impacts of gravel or other flying objects.

 Test Method: 

Coating Hardness Test:

This test helps in determining the hardness of the paint coat.

 Test Method: IS: 101 (P-5) (SEC-1)1988 

Coating Surface Roughness /Profile:

The proper and effective preparation of a surface prior to coating makes sure that the correct roughness or profile is generated. The adhesion to the coating of the surface can be reduced if the profile is too low. If the profile is too high, there is the danger that the profile peaks will remain uncoated.

Coating Thickness Test:

This test helps in determining the thickness of paint plating, coatings and galvanization on iron steel.

 Test Method: IS: 6745-1972 

Condensing Humidity Test:

This test helps in determining the resistance of organic coatings by controlled condensation. Condensation is produced by exposing the test surface of the sample to a heated, saturated mixture of air and water vapour, while the reverse side of the sample is cooled under an air of room temperature air.

 Test Method: IS: 101 (P-6) (SEC-1)1988 

 

Crosshatch Adherence Test:

This test helps in determining the adhesion of a large variety of coatings.

Cyclic Corrosion Test:

This test helps in determining the corrosion degradation of coating systems for steel bridges.

Drying Time Test:

This test is done to know the timeline, when a coating is totally dry. When developing a process, it is crucial to know the definite time it would take for the coating to dry or cure. The coating’s drying time involves multiple stages. The first stage is when the coating levels off under gravity. Once it starts to cure, a thin dry film appears on the surface. The coating then continues to dry until the coating is totally cured.

 Test Method: IS: 101 (P-3) (SEC-4)1986 

Failure Analysis Test:

This test helps in determining when, where, and how the paint or coating failure can occur.

Falling Weight Test:

The ability of a pipe coating to avoid mechanical damage during handling, shipping, and installation depends on its impact resistance. This test method provides a systematic means for screening coating materials aligned to this property.

Flexibility Test:

This test helps in determining the ability of a coating system to withstand the stresses of fabrication. Organic coatings on the precoated sheet are subjected to stresses when fabricated into products by roll forming, brake bending, or other deformation processes. These stresses can exceed the flexibility or adhesive strength of the coating, resulting in fracture of the coating which exposes the surface, or in the loss of adhesion of the coating on the surface.

Free Falling Sand Abrasion Test:

The abrasive is allowed to fall from a specified height through a guide tube onto the coated panel until the substrate becomes visible. The amount of abrasive per unit film thickness is reported as the abrasion resistance of the coating on the panel. Both silicon carbide or silica sand can be used.

 Test Method: ASTM D968 

FTIR Test:

Fourier-Transform Infrared Spectroscopy (FTIR), can serve as an important first-line analysis tool for the identification of coating types and drying mechanisms via monitoring of the functional groups on the chemical compounds inherent in the formulation.

 

Gloss (60C) Test:

Gloss measurement is an essential instrument where a cosmetic appearance of the coat finish is required. It measures a guide to control and test right from matte to mirror finish accurately. A multi-directional beam of light at a specific angle to the test surface and measuring the amount of reflection is used to determine gloss. For general gloss measurement, the 60Å angle is recommended.

 Test Method: IS: 13607-1992, IS: 5691-1970 

Hardness Test:

This test method covers a procedure for rapid, inexpensive determination of the film hardness of an organic coating on a substrate in terms of pencil leads of known hardness. This test covers the determination of the indentation hardness of organic materials such as dried paint, varnish and lacquer coatings, when applied to an acceptable plane rigid surface, for example, metal or glass.

 Test Method: ASTM D3363 / ASTM D1474 

Impact Resistance Test:

Impact performance after painting can be tested with a puncture test or a falling dart test.

 Test Method: IS: 101 (P-5) (SEC-3)1999 

Peel-Off Test:

This test is used to measure resistance to cracking (flexibility) and adhesion of attached organic coatings on substrates of sheet metal or rubber-type materials.

Penetration Resistance Test:

The penetration resistance is of special importance to architectural finishes. The ability to maintain a consistent appearance (colour and gloss) on substrates with varying porosity can be checked by applying the paint over a coated and uncoated area of the test chart. Thus, the penetration resistance is tested under extreme conditions. The penetration resistance is visually evaluated and can also be objectively evaluated by measuring colour and gloss.

Salt Spray Test:

The salt spray test is a standardized test method used to check corrosion resistance of coated samples.

 Test Method: IS: 2074-1992, IS: 13183-1991, IS: 13607-1992 

Scratch Resistance Test:

The scratch resistance can be established e.g. in the Taber abrasion test, where the amount of haze is established after a number of abrasive cycles. Scratch resistance can also be measured by measuring the weight loss after a number of sanding cycles. The pen test determines the indentation caused by a sharp pencil scratched on the surface with a defined force.

 Test Method: ISO 1518 

Scrubbing Resistance Test:

This test helps in determining the resistance of paints to erosion caused by scrubbing. Although scrub resistance tests are intended primarily for interior coatings, they are sometimes used for exterior coatings as an additional measure of film performance.

Scratch Tester:

One of the most important properties of a thin film coating is the adhesion between the coating and the substrate. Scratch Tester is the most common method of accurate measurement of thin-film coating adhesion. 

XENON Arc Test:

This test helps in determining the ability of a paint or coating to resist deterioration of its physical and optical properties caused by exposure to light, heat, water and can be very important for many applications. This practice may induce property changes associated with end-use conditions, including the effects of sunlight, moisture, and heat. The exposure used in this practice is not intended to simulate the deterioration caused by localized weather phenomena such as atmospheric pollution, biological attack, and saltwater exposure.

 Test Method: ASTM D6695 – 08 

Volatile Content Test:

This test helps in determining the weight per cent volatile content of solvent-reducible and water-reducible coatings.

 Test Method: ASTM D2369, IS: 101 (P-2) (SEC-2)1986 

Water Resistance Test:

Water can cause the degradation of coatings, so knowledge of how a coating resists water is helpful for assessing how it will perform in actual service.

 Test Method: IS: 101 (P7SC-1)1989, IS: 13183-1991, IS: 5691-1970

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