PRODUCT DATA SHEET
Sika® Primer-11 W+
Universal substrate primer for tile adhesives or levelling compounds
DESCRIPTION CHARACTERISTICS / ADVANTAGES
Sika® Primer-11 W+ is a synthetic resin primer applied ▪ Ready to use
before using tile adhesives, waterproofing mortars ▪ Can be diluted with water
and/or self-levelling compounds on indoor floors or ▪ Easy to apply
walls to primarily reduce substrate absorbency and ▪ High coverage
improve adhesion. ▪ Short waiting time
▪ Indoor use
USES ▪ Suitable for heated floors (Water and electric sys-
tems)
▪ Reduce substrate absorbency ▪ Very low emissions
▪ Improve substrate adhesion
▪ Protect substrate from moisture entering from tile ENVIRONMENTAL INFORMATION
adhesive, waterproofing mortar or self-levelling com-
pounds VOC emission classification GEV – Emicode EC1PLUS
PRODUCT INFORMATION
Chemical Base Synthetic resin
Packaging 5 kg container
Appearance / Colour Blue
Shelf Life 12 months from date of production
Storage Conditions Product must be stored in original, unopened and undamaged sealed pack-
aging in dry conditions at temperatures between +5 °C and +30 °C. Always
refer to packaging.
Density 1,0 kg/L
APPLICATION INFORMATION
Mixing Ratio Substrate Dilution
Normal absorbent substrate (ce- 1 kg Sika® Primer-11 W+ : 3 L water
mentitious screed, concrete)
Calcium sulphate substrate (calcium 1 kg Sika® Primer-11 W+ : 1 L water
sulfate screed, gypsum plaster)
Low absorbent substrate (chipboard, undiluted
wooden substrate)
Product Data Sheet
Sika® Primer-11 W+
November 2024, Version 02.01
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Consumption 40-100 g/m² depending on substrate absorbency, application equipment
and mixing ratio. These figures are theoretical and do not allow for any ad-
ditional material due to surface porosity, surface profile, variations in level
or wastage etc
Ambient Air Temperature +5 °C min. / +30 °C max.
Substrate Temperature +5 °C min. / +30 °C max.
Substrates ▪ Concrete
▪ Cement screed
▪ Calcium sulfate based screed
▪ Gypsum boards
▪ Gypsum plaster
▪ Wood
Waiting Time / Overcoating Before applying tile adhesive or self-levelling compound to Sika® Primer-11
W+ :
Substrate Waiting time
Cementitious substrate (cementi- ~10 minutes
tious screed, concrete)
Wooden substrate and chipboard ~2 hours
Low absorbent substrate (old water ~12 hours
resistant adhesive)
Calcium sulphate substrate (mois- ~24 hours
ture proof)
BASIS OF PRODUCT DATA preparation techniques to remove all traces of any
materials that could reduce the product's adhesion to
All technical data stated in this Product Data Sheet are the substrate. Smooth surfaces should be roughened
based on laboratory tests. Actual measured data may lightly to improve adhesion. To confirm adequate sur-
vary due to circumstances beyond our control. face preparation,primer compatibility and adhesion,
carry out a small trial before full application.
LIMITATIONS MIXING
▪ Do not apply on metal, vinyl or ceramic surfaces. Shake or stir Sika® Primer-11 W+ in product container
▪ Do not apply outdoors. before use.
▪ Do not add anything to the product that is not spe-
cified in this Product Data Sheet. APPLICATION
▪ Do not use for any applications not explicitly de-
scribed in this Product Data Sheet. Pour mixed diluted or undiluted primer onto the pre-
pared substrate and apply by brush, roller or squee-
ECOLOGY HEALTH AND SAFETY gee. Ensure a continuous, pore free coat covers the
substrate. Avoid excessive primer consumption and
For information and advice on the safe handling, stor- the formation of puddles. Remove excess primer be-
age and disposal of chemical products, users shall fore applying tile adhesive or self- levelling compound
refer to the most recent Safety Data Sheet (SDS) con- CLEANING OF TOOLS
taining physical, ecological, toxicological and other
safety-related data. Clean all tools and application equipment with water
immediately after use. Hardened or cured material
APPLICATION INSTRUCTIONS can only be removed mechanically.
SUBSTRATE QUALITY / PRE-TREATMENT LOCAL RESTRICTIONS
Cementitious substrates must be sufficiently cured Please note that as a result of specific local regulations
and dried (2-6 weeks), All substrates must be structur- the performance of this product may vary from coun-
ally sound, able to support the weight of the new tiling try to country. Please consult the local Product Data
and provide a stable and securely fixed background. Sheet for the exact description of the application
Surfaces shall be clean, dry, free of any loose or friable fields.
particles, contaminants such as dust, dirt, oil, wax, pol-
ish grease, cement laitance or efflorescence.
Depending on the substrate condition and contamin-
ants to be removed from the surface, use adequate
Product Data Sheet
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November 2024, Version 02.01
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LEGAL NOTES
The information, and, in particular, the recommenda-
tions relating to the application and end-use of Sika
products, are given in good faith based on Sika’s cur-
rent knowledge and experience of the products when
properly stored, handled and applied under normal
conditions in accordance with Sika’s recommenda-
tions. In practice, the differences in materials, sub-
strates and actual site conditions are such that no war-
ranty in respect of merchantability or of fitness for a
particular purpose, nor any liability arising out of any
legal relationship whatsoever, can be inferred either
from this information, or from any written recom-
mendations, or from any other advice offered. The
user of the product must test the product’s suitability
for the intended application and purpose. Sika re-
serves the right to change the properties of its
products. The proprietary rights of third parties must
be observed. All orders are accepted subject to our
current terms of sale and delivery. Users must always
refer to the most recent issue of the local Product
Data Sheet for the product concerned, copies of which
will be supplied on request. It may be necessary to ad-
apt the above disclaimer to specific local laws and reg-
ulations. Any changes to this disclaimer may only be
implemented with permission of Sika® Corporate Legal
in Baar.
Sika (NZ) Limited
85-91 Patiki Road
Avondale, Auckland 1026
New Zealand
0800 745 269
www.sika.co.nz
SikaPrimer-11W+-en-NZ-(11-2024)-2-1.pdf
Product Data Sheet
Sika® Primer-11 W+
November 2024, Version 02.01
021790400000000016
3/3
