![]() Part Number - N008-026A Laboratory Drawdown Jr. Part Number - N008-005 DRAWDOWN :BAR# SELECT ROD DIA either 1/4 inch, 1/2 inch or 3/8 inch >62: Standard Lab Rods with a Rod diameter of 1/4" is not recommended above 62 Drawdown charts are rectangular pieces of non-fluorescent paper 1 which are used to test a variety of coating properties. For example the number 3 rod would be 3 x 2.54 = 7.62 Microns.Ĩ2-90: Standard Lab Rods Only (Accu-Lab Jr. The number 20 rod would be 20 x 0.10 = 2.0 Mils.įor Microns, multiply rod number by 2.54. For example, the number 3 rod would be 3 x 0.10 = 0.30 Mils. To determine approximate wet film thickness in Mils for a specific rod number from the table below, multiply the rod number by 0.10. Standard Lab Rods (N008-056, N008-057 & N008-058) are less expensive due to a different manufacturing process and all of these are 16" long with a centred wound length of 12". Part Number - N008-026 Laboratory Drawdown Jr. They are still called "Mayer Bars" by many coaters. Wire-wound rods were first used in coating machines built by Charles Mayer in the 1900's to manufacture waxed paper and carbon paper. Although the technology goes back almost a century, today's high quality materials, multi-wire designs and special wire surfaces have made this system more popular than ever before. The market for wire-wound rods has grown rapidly during the past few decades, because they provide predictable, accurate coatings time after time, at a minimal cost. Rod selection tables allow coaters to consider coat weight and percent of solids in choosing the proper rod size for each production run.īottom-line profits have encouraged many coaters to modify existing machines, in order to take advantage of the flexibility, the ease of use and the dollar savings associated with rod coating. ![]() Wet coating thickness can be accurately predicted within one tenth of a mil (.0001"). These stainless steel rods are 4" shorter than conventional lab rods and offer an additional savings. Laboratory Drawdown Rods (N008-026, N008-026A) are designed for users producing test samples up to 8½" wide. With an overall length of 16", these rods are longer than the Jr. ![]() Drawdown Rods, Drawdown Bars, (also known as Mayer Bars)ĭrawdown rods give users the ability to fine-tune coating thickness quickly and easily, without altering the chemistry of their coating material, and without time-consuming and expensive changeovers.įor users that require a coating path of up to 12", use the standard Laboratory Drawdown Rods (N008-005 choose 1/4", 3/8", or 1/2"). ![]()
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