TECHNICAL DATA
#16 Black Pitch Bar
PB0160

#16 BLACK PITCH is a temporary cement used for a variety of blocking and holding applications. #16 BLACK PITCH is commonly used to block together a series of lenses or work pieces for edging or profiling. Other applications include thin film blocking, Blanchard wheel work, spot blocking, surface protection and a variety of other uses where semi-hard, high tack materials are desired.

Application

Depending on application, #16 BLACK PITCH can be applied in two basic methods:

  1. Pre-melt 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.

Remove the pitch by submerging in water above 168°F. Clean parts with a mild alkaline soap and warm water. Any remaining residue is best cleaned by using UNICLEAR followed by acetone.

For best results consult with UPI technical staff to recommend optimal processing conditions.

Benefits
  • Unaffected by cool water or slurries
  • High dielectric constant
  • Lack of porosity
  • Usable on a wide variety of materials
Physical Characteristics
Test #16 Black Pitch Bar
Ball Penetration Test (70F, 500 g weight, 1hr) (in) 0.003 ± 0.002
Softening Point (°C) 62 ± 6
Melting Point (°C) 73 ± 6
Availability
  • 2 Bar(s)
  • 1 Tray(s)
Information included herein was obtained from sources which UNIVERSAL PHOTONICS, INC. and its subsidiaries believes are reliable and accurate as of the date hereof. However, no representations or warranties, either expressed or implied, of merchantability, fitness for a particular purpose or of any other nature are made herein as to the information provided or the product to which the information refers. The health and safety precautions contained herein may not be adequate for all individuals and/or situations. It is the user's obligation to evaluate and use this product safely and to comply with all applicable laws and regulations. Given the variety of factors that can affect the use and application of a product, some of which are uniquely within the user's knowledge and control, it is essential that the user evaluate the product to determine whether it is fit for a particular purpose and suitable for user's method of use or application. We assume no legal liability for any injury, accident, loss, or damage through the use of this product. ver.12.07.2022a/TD