© 2018 DESCO INDUSTRIES INC.

Employee Owned

3651 WALNUT AVE., CHINO, CA 91710

PHONE: (909) 627-2453

WEBSITE: MendaPump.com

DRAWING

NUMBER

35690

DATE:

January

2018

CONDUCTIVE BRUSHES

Characteristics:

• Brushes minimize static charge generation and remove electrostatic charges to ground

when held by grounded personnel

• Dissipative polypropylene black handles remove charges when grounded

• Available in two kinds of bristles - semi fine, firm

• Semi-fine bristles are ideal for chemical and electronics applications

• Firm bristles are mainly for electronics, especially circuit boards

• Conductive handle’s ESD properties are not effected by humidity as are wooden handle

brushes

• Conductive copper based nylon bristles with hog hair and two other natural fibers.

• Volume Resistance of conductive fibers:

1 x 103 to < 1 x 105 ohms per ANSI/ESD STM11.12

• Volume Resistance of dissipative handle:

1 x 104 to < 1 x 1011 ohms per ANSI/ESD STM11.12

Materials:

•

Firm bristles - conductive yarn and pig hair

•

Semi-fine bristles - conductive yarn and horse hair

Item

Style

Bristle Hardness Bristle Dimensions

35690

Round

Firm

1/4" L (6 mm) x 13/20" H (17 mm)

35691

Long Handle

Firm

1" L (25 mm) x 51/64" H (20 mm) x 19/32" W (15 mm)

35692

Long Handle

Firm

2" L (50 mm) x 51/64" H (20 mm) x 19/32" W (15 mm)

35693

Flat

Firm

2" L (50 mm) x 1" H (6 mm) x 5/9" W (14 mm)

35694

Flat

Semi-Fine

1/2" L (13 mm) x 3/4" H (19 mm) x 2/5" W (10 mm)

35695

Curved Handle

Firm

3” L (76 mm) x 3/4” H (19 mm) x 1 1/2” W (38 mm)

35696

Flat

Firm

1/2” L (13 mm) x 3/5” H (15 mm) x 1/2” W (13 mm)

36086

Flat

Firm

3/4” L (19 mm) x 3/4” H (19 mm) x 4/5” W (20 mm)

36087

Flat

Firm

3/4” L (19 mm) x 3/4” H (19 mm) x 1” W (6 mm)

36088

Flat

Firm

1-1/2” L (38 mm) x 1-1/2” H (38 mm) x 1-1/2” W (38 mm)

ESD Handbook TR20.20 Table 1 lists under Typical Static Electricity Sources

“Brushes (camel/pig hair and synthetic bristles).” “It should be understood

that any object, item, material or person could be a source of static electricity

in the work environment. Removal of unnecessary nonconductors, replacing

nonconductive materials with dissipative or conductive materials and grounding

all conductors are the principle methods of controlling static electricity in the

workplace, regardless of the activity.” (TR 20.20 section 2.4)

Specifications and procedures subject to change without notice.

Unless otherwise noted, tolerance is ±10%.

Synthetic vs. Natural Bristles

Synthetic bristles can easily become charged with static in standard humidity conditions.

Natural hair usually builds static in areas of low humidity, but due to the conductive fibers in our brushes,

this problem does not take effect.

Generally speaking, once the conductive yarn is added to the bristles, it neutralizes the possibility of static

build up caused by the natural hair.

Made in Israel

35690

35691

35692

35693

35694

35695

35696

36086

36088

36087

Dimensions are taken from the bottom of the brush to the top of the bristles.