Plastisol Mastic PMK (Adhesive)

Mastic is a mixture of polyvinyl chloride resins with plasticizers, thermostabilizers, viscosity stabilizers, fillers, adhesive, thixotropic and other additives.

Category: PVC Plastisol Mastic

Purpose: Automotive industry

Technical specifications
Main purpose and application

Technical specifications

1. Appearance: Homogeneous gray paste without foreign inclusions 2. Minimum solids content, %: 97.0 3. Viscosity (Brookfield RVT viscometer, spindle No.7), Pa·s: 5 rpm – 400–600 10 rpm – 200–350 4. Flow, mm, max: at (23±2)°C for 24 h in a 5 mm layer; at (170±2)°C for 30 min in a 5 mm layer. No displacement of the adhesive mastic profile is allowed. 5. Density, g/cm³, max: 1.55 6. Extrusion, g/min, min: 300–700 7. Heat resistance: at (180±2)°C for 100 min; at (210±2)°C for 30 min. No burning of the adhesive mastic is allowed (slight darkening of the surface layer is acceptable), surface without cracks. 8. Heat resistance: No dissolution or wash-off of the adhesive is allowed; minor surface deformation (up to 1 mm deep) is acceptable.

Main purpose and application

The mastic is intended for lap joints, reinforcement bonding. The mastic adheres to raw unprepared metal. The material is a PVC plastisol with thixotropic behavior and has sealing and anti-vibration effects.

Main application areas:
Automotive industry (reinforcement bonding)
  • Bonding seals in grooves of bushings and pipelines (Ch-5-A mastic).
Construction and industry
  • Sealing joints of pipes, window blocks, panel seams.
  • Waterproofing of roofs and foundations (resistant to water and UV radiation).
  • Bonding filters in ventilation systems.