Mono 321

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Mono 321 is a single-component, plastic, acrylic compound primarily intended for puttying windows without beading.

Summary of benefits

  • Excellent adhesion to most construction materials (aluminium, PVC, painted wood, steel, glass, concrete, brick, ceramic tile).
  • No need for priming.
  • Can be painted over after one week.
  • Does not cause colour changes in marble or granite.
  • Used in glazing work for over 30 years.

Intended for:

  • Puttying of windows without breading.
  • Puttying of insulating glass units without beading.
  • Perimeter sealing of doors and windows.
  • Various construction joints.
  • Sealing joints with low movement capability in various façade claddings.

Mono 321 is not recommended for use in:

  • joints that are permanently underwater;
  • contact with food;
  • areas with a possibility of high physical loading;
  • direct contact with styrox (polystyrene, EPS);
  • indoor areas, as the odours can cause irritation one week after installation.

Colour

  • White
  • Grey
  • Brown
  • Black

Packaging

  • 310 ml cartridge (12 per carton)

Properties (typical values)

  • Specific gravity: 1.4
  • Solids: 88%
  • Elongation at break (EN 28339): 150%
  • Weight loss (NFP 85515): less than 15%
  • Shrinkage (NFP 85.515): no cracks observed
  • UV resistance: excellent
  • Movement capability (ISO 11600): ± 12.5%
  • Service temperature range: -35 °C to +92 °C