Sikaflex® PRO+ is a 1-component, moisture-curing, elastic joint sealant.
Sikaflex® PRO+ is designed for movement and connection joints in concrete and masonry facades.
BENEFITS
Movement capability of ±35 %
Bubble-free curing
Good workability
Very low emissions
Good adhesion to many substrates
APPLICATION
Curing rate
3 mm/24 hours approx. (23 °C / 50% r.h.)
Tooling time
60 minutes approx. (23 °C / 50% r.h.)
Skinning time
70 minutes approx. (23 °C / 50% r.h.)
APPLICATION
Concrete
Masonry
Reconstituted or cast stone
Metal.
TECHNICAL
Shore A hardness 28 approx. (after 28 days)
(ISO 868)
Tear propagation resistance 6.5 N/mm approx.
(ISO 34)
Elastic recovery 90% approx.
(ISO 7389)
Service temperature
−40 °C to +70 °C
PREPERATION
The substrate must be clean, dry, sound and homogeneous, free from oils, grease, dust and loose or friable particles. Sikaflex® PRO+ adheres without primers and/or activators.
However, for optimum adhesion and critical, high performance applications, such as on multi-story buildings, highly stressed joints, extreme weather exposure or water immersion, the following priming and/or pretreatment procedures must be followed:
Non-porous substrates
Aluminium, anodised aluminium, stainless steel, galvanised steel, powder coated metals or glazed tiles have to be cleaned and pre-treated using Sika® Aktivator-205, wiped on with a clean towel. Before sealing, allow a flash-off time of > 15 minutes (< 6 hours).
Porous substrates
Concrete, aerated concrete and cement based renders, mortars and bricks shall be primed using Sika® Primer-3 N applied with a brush. Before sealing, allow a flash-off time of > 30 minutes (< 8 hours).
CLEANING OF EQUIPMENT
Clean all tools and application equipment immediately after use with Sika® Remover-208 and / or Sika® Colma Cleaner.
Once cured, hardened material can only be removed mechanically. For cleaning skin use Sika® Hand Wipes.
