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© 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.