Cement-lime jointing mortar for new buildings
Product specifications
Compressive strength (28 d)
≥ 10 N/mm² (M10)
Dynamic E-modulus (28 days)
≥ 10,000 N/mm²
External surveillance
GG-CERT
Maximum grain size
Approx. 1 mm
Open porosity
Approx. 30 vol.-%
Water requirement
Approx. 11%, equivalent to 2.8 l/25 kg
Preparation
Substrate requirements
Clean, dust-free and capable of supporting a load.
Preparations
Joint depth min. 2 cm or double the joint width.
Sanded joint sides can lead to lateral detachment.
Application
Application temperature: min. 5 °C max. 30 °C
Joints
Apply the grouting in two layers if possible. Inject the jointing mortar (strength class M10, maximum grain size 1 mm) and level off but do not press down.
Only mix as much mortar as can be used within approx. 2 hours.
Pre-wet the open, cleaned joint.
Application of thin layers at the edges of defective areas can be facilitated by adding Remmers Haftfest to the mixing water (mixing ratio 1:10). In this case, hardening will be somewhat delayed but the bonding strength will be increased.
After application, work with a profiling tool (e.g. tubing).
Wait at least 24 hours before applying subsequent layers.
Application instructions
Once it has hardened, mortar must not be made workable again by adding either water or more wet mortar.
The type and duration of the reworking and surface treatment will influence the colour.
Slight deviations in colour between different batches are possible.
Protect wet mortar surfaces against frost, rain and drying out too quickly for at least 4 days.
The flank adhesion can be increased by adding ZM HF [basic] to the mixing water (ratio 1:10).
Working tools / cleaning
Joints
Clean tools and equipment with water before the mortar sets.
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