#1 Black Pitch Bar
PB0100

Description

#1 BLACK PITCH is a semi-hard temporary cement used for a variety of blocking and holding applications. #1 BLACK PITCH is commonly used for blocking together lenses or work pieces that need to be edged or profiled.

Application

Depending on application, #1 BLACK PITCH can be applied in two basic methods:

  1. Pre-melt #1 BLACK PITCH in a controlled heating vessel, and apply or pour molten pitch to blocking plate or lap, and then mount the workpiece.
  2. Pre-heat the blocking plate or lap and work piece, and wipe the pitch across the heated tool and mount the workpiece.

#1 BLACK PITCH can be removed from the parts by using UPI’s UNICLEAR or UNICLEAR II. For best results, please consult with UPI technical staff to recommend optimal processing conditions.

Benefits

  • Unaffected by water and coolant
  • High dielectric constant
  • Lack of porosity
  • Wide array of applications

Physical Characteristics

  • Appearance: Soft Black Bar
  • Softening Point (°C): 62 ± 6
  • Melting Point (°C): 73 ± 6
  • Ball Penetration Test (70F, 500 g weight, 1hr) (in): 0.0020 ± 0.0010

Availability

  • 10 Bar(s)
  • 2 Bar(s)
  • 1 Tray(s)

Additional Product IDs

PB0100, PB0100NS

Documents

Document Type Langauage
Technical Data Sheet English (US)
Brochure English (US)