SPI Supplies Carbon Coated Nylon Grids, 3 mm diameter for TEM, Pack of 25
Mesh size: 180
Open area: 47%
Monofilament diameter: 82 µm
Thickness: 135 µm
Package of 25
-An inexpensive alternative to beryllium, pyrolytic carbon, carbon composite, or diamond grids.
-Good low background support membrane.
-High quality carbon coating for enhanced conductivity.
The SPI Carbon Coated Nylon Grids are fabricated from a precision, specially produced Nylon (e.g. polyamide) mesh. Highly uniform monofilaments are used to form a mesh that is smooth and regular, and free of the sharp protuberance that would otherwise puncture a thin film sample. The appearance of the SPI Nylon Grid compares very favorably to a standard SPI 200 mesh copper grid. Note that the "bars" or nylon monofilaments only are carbon coated. These are not nylon carbon filmed grids. These grids are unsupported nylon grids with grid bars only that have been carbon coated.
Note: The Nylon monofilament fiber does contain a low level of titanium dioxide, so users can expect to see some low intensity X-ray lines from Ti.
Also, not recommended for use at temperatures over 200° C. If one wants to cut out their own grids or other shapes of the nylon mesh, larger pieces can be purchased from SPI Supplies.
An uncoated Nylon grid would be unacceptablely non-conductive, therefore, SPI evaporates a layer of carbon to impart surface conductivity to the grid's surface.
Customer filmed Nylon grids now available as standard products:
Because of the popularity of the SPI custom coated Nylon grids, we have now converted what had been a "special order" grid to a regular part of our SPI Supplies product line.
One additional note: While in catalogs or website presentations, all "carbon coated Nylon grids" might have the appearance of being the same generic item, they most definitely are not! The single most important aspect of quality in this product is the quality of the carbon coating and we are constantly told that the special way we apply our carbon results in a grid that is more conductive than what is normally expected. A grid without sufficient carbon coating is extremely susceptible to both beam damage and charging in the TEM, making it next to impossible to obtain useful information.