Elasticity and resistance to deformation are part of the key physical properties required in the coatings industry today. Essentially there are three different test methods which are used to determine a coating's performance under different deformation conditions.
Bend Test
|
A coated metal sheet is bent over a cylindrical or conical mandrel and the coating observed for cracks and discolouration. |
Impact Test |
A coated metal sheet is placed beneath a falling weight and the resultant damage caused by the deformation is observed. The impact test method is used to identify how the coating performs under a rapid deformation process |
Cupping Test |
A coated metal sheet is subjected to a gradual deformation by a polished die. This deformation is caused by the die being pushed from beneath the coating - ie from the reverse side of the sheet. The end point is when the coating begins to crack. |
Please click on the appropriate image or on the heading for more information about each instrument.
Elasticity
|
The Elcometer 1510 - Conical Mandrel Bend Tester is particularly robust and rigid construction of the Elcometer conical mandrel tester is used in the determination of elasticity, adhesion and elongation of paint on sheet metal. The specimen can be bent on part of or along the entire length of the mandrel, and the results (cracks) corresponding to different test diameters can be observed in a single operation. Conforms to ISO, ASTM, DIN, BS, EN, ECCA.
|
|
The Elcometer 1500 - Set of Cylindrical Mandrels on a stand is a simple instrument for determining the elasticity, adhesion and cracking of dry paint on flat specimens, consisting of a mandrel support which also serves as a test stand. Painted metal sheets, are manually bent around mandrels of decreasing diameter until cracks appear. Conforms to ASTM.
|
|
The Elcometer 1506 - Cylindrical Mandrel Bend Tester is cylindical mandrel bend tester consists of a robust frame which has a bending lever, with height adjustable rollers and a sliding vice for the sample. Thanks to its design, the instrument can be adapted to the diameter of the mandrel used are bent perfectly and regularly over the mandrels. Conforms to ISO, ASTM, DIN, BS, EN, ECCA, NFT, NF.
|
Resistance Deformation |
|
The Elcometer 1620 - Cupping Tester is used for assessing the cupping ability of coatings applied to metal sheets up to 1.2mm thick, the Elcometer cupping tester is available with either an analogue or a digital gauge, manual or electric. Models are supplied with an illuminated magnifier to accurately view the deformation's results. Conforms to ISO, DIN, BS, EN, NF, NFT, NBN.
|
|
The Elcometer 1615 - Variable Impact Testers is used for evaluating the resistance of a coating to impact (elongation, cracking or peeling). A weight with hemispherical ends falls on the coated side or reverse of a sheet metal specimen fixed onto a corresponding die. The impact testers can be supplied with accessory kits to allow tests to be in accordance with ASTM D 2794 and NF T30 017. Conforms to ISO, ASTM, DIN, BS, EN, NF, NFT, ECCA.
|
|
