Standard Product Range

 

The chart below shows a sampling of dies that are available at Dexmet. We produce over 100,000 configurations and can design a die to suit your particular application.

 

The unique, single-unit structure of MicroGrid provides many real advantages. First and foremost is its uniformity of electrical conductivity, which surpasses that of discreet metal fiber and wire cloth open materials. Woven wire cloth strands can unravel and contact resistance between the strands can vary. MicroGrid's unitary solid foil structure offers uniform and better conductivity. The proportions between the length and width of MicroGrid's openings can be developed to produce specified conductivity. MicroGrid is light and fantastically flexible. It can be bent, shaped and laminated with a variety of flexible materials. A square foot of raw material when expanded can produce two to three times or more of open area material without scrap. Stamping or etching creates open area by removing material that becomes scrap resulting in higher material costs.

PolyGrid provides a similar range of open area patterns and flexibility to customers. PolyGrid is manufactured utilizing ductile polymers including Teflon, polypropylene, polyethylene and others. These metal foil and plastic film products are available from .001" (25 microns) think, up to 60" (152.4cm) in width from 1 to 9,000 openings per square inch (14/sq.mm).

 

Pattern Shown	Pattern Designation	LWD inches (mm)	SWD inches (mm)	Orig. Mat'l Thickness inches (mm)	Strand Width inches (mm)	Openings per sq. in.
	500	.405 - .506" (10.25 - 12.75)	.143 - .279" (3.6 - 7.1)	.003 - .04" (.075 - 1)	.007- .07" (.175 - 1.775)	15-22
	275	.215 - .289" (5.4 - 7.4)	.107 - .200" (2.7 - 5.1)	.003 - .035" (.075 - .9)	.005- .055" (.125 - 1.4)	33-77
	190	.180 - .190" (4.5 -4.8)	.056 -.143" (1.4 - 3.6)	.002 - .030" (.05 - .75)	.005- .045" (.125 - 1.1)	79-166
	125	.112 - .160" (3.0 - 4.06)	.055 -.115" (1.4 - 2.92)	.002 - .026" (.05 - .7)	.004- .04" (.1 - 1.10)	114-253
	100	.093 - .112" (2.4 - 2.8)	.038 -.091" (.97 - 2.3)	.002 - .025" (.05 - .61)	.005- .026" (.125 - .66)	253-353
	077	.075 - .080" (1.91 - 2.03)	.032 -.053" (0.82 - 1.35)	.001 - .018" (.025 - .46)	.004 - .020" (.1 - .51)	493-780
	050	.050 - 06" (1.27 - 1.5)	.021 -.041" (0.53 - 1.04)	.001 - .015" (.025 - .381)	.004 - .015" (.1 - .381)	809-1814
	031	.03 - .04" (0.78 - 1.02)	.021 -.029" (0.53 - 0.74)	.001 - .005" (.025 - .127)	.004 - .012" (.1 - .31)	1789-2942
	020	.020" (0.51)	.011 -.014" (0.28 - 0.36)	.001 - .002" (.025 - .050)	.004 - .006" (.1 - .152)	8500-11000

 

LWD (Long Way of the Diamond), measured from the center of the joint to the center of the adjacent joint. This dimension is built into the tool, and is always parallel to the width of the coil and corresponds with the diamond dimension.

SWD (Short Way of the Diamond) is the length of the short axis way of the diamond, measured from the center of the joint to the center of the joint. For each fixed LWD dimension, there is a range of SWD dimensions available as shown above.

Ductile Metals: Aluminum, Brass, Cadmium, Columbium, Copper, Gold, Inconel, Lead, Magnesium, Nickel, Nickel Alloys, Phosphor Bronze, Platinum, Silver, Stainless Steel, Low Carbon Steel, Tantalum, Titanium, Zinc, Zirconium, etc.

Plastics: Nylon, Polypropylene, Polyethylene, Mylar, Teflon, Tefzel, etc.

Explanation of Product Code:

Example: 3 Ni 5-077

First number represents nominal original thickness
3 = .003" (.076 mm)

Letters are chemical symbol for material
Ni = Nickel

Number immediately following letters represents strand width
5 = .005" (.127 mm)

Last number indicates the long way of the diamond
077 = .077" (1.96 mm)

Variations to many of these standard MicroGrid® products are described in the previous section. In addition, each mesh size offers a wide range of tools for your desired results. We can help design precision expanded foil to meet your specialized mechanical, electrical, or heat transfer requirements. Call for material/mesh samples and engineering assistance.

 

Below sample images are for reference only.

 

3 Brass 10-125	20 Al 20-416	10 Cb 20-284