Gugolz #64 is a soft, natural wood-resin optical polishing pitch designed for smoothing and figuring precision telescope mirrors and lenses.

Key Specifications:
Grade: Soft (#64)
Softening Point: 65–68 °C (149–154 °F)
Melting Point: 68–72 °C (154–162 °F)
Ideal Working Temperature: 65–75 °F ambient room temperature
Composition: 100% natural wood resins (petroleum-free)