Primer for Sika joint sealants and elastic adhesives
Sika Primer-3N is a one-part, solvent containing primer for Sika joint sealants
and elastic adhesives.
As a primer under Sikaflex, Sikaflex AT joint sealants and SikaBond, SikaBond
AT elastic adhesives on porous substrates such as concrete.
Characteristics / Advantages
Easy to apply
Provides better and longer bonding
Can be used on surfaces up to 8% moisture content
Can be used both on porous (concrete, cementitious surfaces etc.) and nonporous
substrates (metal, etc.)
Appearance / Colour:
Packaging: 1 litre metal pail
Storage Conditions / Shelf-life
9 months from date of production if stored properly in undamaged original sealed
containers in dry conditions and protected from direct sunlight at temperatures
between +10C and +25C.
Transparent solvent based and reactive epoxy resin mix
~ 0.98 kg/l (ISO 2811-1)
On porous substrates: ~220 - 300 m with 1 liter (1 liter per ~5 m2)
Non-porous substrates (metals): ~400 m with 1 liter (1 liter per ~8 m2)
Substrate Quality Substrate should be clean, homogeneous and free from oil, grease and dust.
Clean and dry, homogeneous, even, free from oils and grease, dust and loose or
friable particles. Paint, cement laitance and any other contaminants must be
removed using suitable mechanical techniques such as wire brush or grinding.
Substrate should be dry, slightly visible damp is acceptable - there should be no
standing water. It is advisable to mask off adjacent areas to prevent possible
Application Conditions / Limitations
min. +50C, max. +350C
min. +50C, max. +350C
Substrate Moisture Content
Allowable maximum substrate moisture content is 8%
Application Method / Tools
Apply Sika Primer 3N to joint surfaces by brush. Protect the sides with masking
tape if necessary.
Cleaning of Tools
Clean all tools and application equipment with Sika Colma Cleaner immediately
after use. Hardened / cured material can only be removed mechanically.
Notes on Application / Limitations
Allow a flash-off time of at least 30 minutes before sealant application (maximum 8 hours).
Do not use on bituminous substrates or construction materials that may be
negatively effected by solvent based products.
For using Sika Primer 3N under Sika joint sealants and elastic adhesives on
different substrates, please see the "Primer Table"
All technical data stated in this Product Data Sheet are based on laboratory tests.
Actual measured data may vary due to circumstances beyond our control.
Please note that as a result of specific local regulations the performance of this
product may vary from country to country. Please consult the local Product Data
Sheet for the exact description of the application fields.
Health and Safety Information
For information and advice on the safe handling, storage and disposal of chemical
products, users shall refer to the most recent Material Safety Data Sheet
containing physical, ecological, toxicological and other safety-related data.