Sopro RS 648

A one component, fibre reinforced, polymer modified, trass bearing, cementitious bonding and contact slurry. Applied as flexible bonding slurry for installation of stone and ceramic coverings using vibrated floor system or conventional methods.

Ideal for slurry application technique. Sopro RS 648 is particularly suitable for laying tiles with low water absorption (fully vitrified stoneware). For laying large-format units (300 x 600 mm) using vibrated floor system. Also used as slurry-applied bonding layer on substrate and on bedding adhesive. Low-chromate to Regulation (EC) No 1907/2006, Annex XVII.

Features and benefits:

  • Strong bond where suitable tiles are installed using vibrated floor system.
  • For vibratable large-format tiles or rectified fully vitrified stoneware.
  • For indoor or outdoor use.

General information

Uniclass 2015

Pr_20_31_53_66 Polymer-modified cementitious slurriesPrimary


M10/275 Cement slurry bonding

M10/30 Fully bonded construction

M10/35 Partially bonded construction

M40/10 Natural stone covering to

M40/110 Tiling to

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Specification data - Polymer-modified cementitious slurries

Product Reference

Sopro RS 648

Standard product features

Technical characteristics:

  • Water requirement: 9.25–9.75 L per 15 kg.
  • Application temperature: 5–30°C.

– Coverage:

  • 1.5–2.0 kg/m² for slurry application, using notched trowel with 6 mm serration.
  • 0.8–0.9 kg/m² for 1 mm coat thickness (approximately).
  • 3.0 kg/m² for powder application.

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