Description
SikaHyflex®-250 Facade White 600ml
High-performance joint sealant for concrete, masonry and EIFS facades
SikaHyflex®-250 Facade is a 1-part polyurethane joint sealant. It is used for durably sealing movement and connection joints in concrete, masonry and EIFS facades.
Usage
The Product is used for sealing and weatherproofing joints in the building envelope where reliability and durability is required. The Product is used for the following application areas:
- Interior or exterior joint sealing.
- Around window and door frames.
- Around facade elements.
- Around precast elements.
- EIFS facades.
Advantages
- Easy to extrude and tool.
- Very high movement capability of +100 % / -50 % (ASTM C 719).
- Monomeric diisocyanate content <0.1 %: no user safety training needed (REACH restriction 2023, Annex XVII entry 74).
- Odourless.
- Very low emissions.
- Good adhesion to many construction materials.
- Good resistance to weathering.
Packaging
600 ml cylindrical foil pack
Colour
Product Details
ENVIRONMENTAL INFORMATION
-
LEED v2009 IEQc 4.1 SikaHyflex®-250 Facade.
-
Contributes towards satisfying Indoor Environmental Quality (EQ) Credit: Low-Emitting Materials under LEED® v4.
-
VOC emission classification GEV Emicode EC1plus.
APPROVALS / STANDARDS
- CE marking and declaration of performance based on EN 15651-1:2012 Sealants for non-structural use in joints in buildings and pedestrian walkways — Part 1: Sealants for facade elements.
- ISO 16938-1 non staining on marble.
- ASTM C 1248 non staining on marble.
Application
Backing Material
Use closed cell, polyethylene foam backing rod.
Sag Flow
|
20 mm profile tested at +50 °C |
0 mm |
Product Temperature
|
Maximum |
+40 °C |
|
Minimum |
+5 °C |
Ambient Air Temperature
|
Maximum |
+40 °C |
|
Minimum |
+5 °C |
Substrate Temperature
|
Maximum |
+40 °C |
|
Minimum |
+5 °C |
Beware of condensation. Substrate temperature during application must be at least +3 °C above dew point.
Curing Rate
|
At +23 °C and 50 % R.H. |
3 mm / 24 h |
Skin Time
|
At +23 °C and 50 % R.H. |
70 minutes |
Tooling Time
|
At +23 °C and 50 % R.H. |
65 minutes |