SikaBond® AT Universal
SikaBond® AT Universal is a 1-component, solvent-free multipurpose adhesive with very good workability.
- Silicone-free
- Non-corrosive
- Very good workability
- Short cut off string
- Good initial tack and fast curing
- Over-paintable
- High adhesive strength without priming
- Good weathering and water resistance
- Very good adhesion on non-porous and porous substrates
Usage
SikaBond® AT Universal is designed for internal and external bonding of cable channels, acoustic tiles, and door sills, lightweight construction materials, bonding of roof and wall coverings and cover plates.Advantages
- Silicone-free
- Non-corrosive
- Very good workability
- Short cut off string
- Good initial tack and fast curing
- Over-paintable
- High adhesive strength without priming
- Good weathering and water resistance
- Very good adhesion on non-porous and porous substrates
Packaging
300 ml cartridge, 12 cartridges per box
600 ml foil pack, 20 foil packs per box
Colour
White, dark-grey
Product Details
ENVIRONMENTAL INFORMATION
- LEED v2009 IEQc 4.1: Low-Emitting Materials - Adhesives and Sealants
APPROVALS / STANDARDS
- ISO 11600 F 20 HM
- ISEGA Certificate for foodstuff area usage
Chemical Base
Silane terminated polymer
Shelf Life
SikaBond® AT Universal has a shelf life of 12 months from the date of production, if it is stored properly in undamaged, original, sealed packaging, and if the storage conditions are met.
Storage Conditions
SikaBond® AT Universal shall be stored in dry conditions, protected from direct sunlight and at temperatures between +5 °C and +25 °C.
Density
| ~1.40 kg/l | (ISO 1183-1) |
Shore A Hardness
| ~33 (after 28 days) | (ISO 868) |
Tensile Strength
| ~1.5 N/mm2 | (ISO 37) |
Secant Tensile Modulus
| ~0.60 N/mm2 at 100 % elongation (after 28 days) (23 °C) | (ISO 8339) |
Elastic Recovery
| ~70 % (after 28 days) | (ISO 7389) |
Lap Shear Strength
| ~1.0 N/mm2 (1 mm adhesive thickness) | (EN 1465) |
Tear Propagation Resistance
| ~5.0 N/mm | (ISO 34) |
Movement Capability
| ± 20 % | (ISO 9047) |
Chemical Resistance
SikaBond® AT Universal is resistant to water, seawater, diluted alkalis, cement slurry and water dispersed detergent.
SikaBond® AT Universal is not resistant to alcohols, organic acids, concentrated alkalis and concentrated acids, chlorinated and aromatic hydro-carbons.
SikaBond® AT Universal is not or is only temporarily resistant to concentrated mineral acids, organic solvents (kelones, esters, aromatics) and alcohol, lacquer and paint thinners, organic acids and caustic solutions or solvents.
For detailed information please contact Sika Technical Service.
Service Temperature
−40 °C min. / +80 °C max.
Application
Sag Flow
0 mm (20 mm profile, 23 °C) | (ISO 7390) |
Ambient Air Temperature
+5 °C min. / +40 °C max.
Relative Air Humidity
30 % min. / 90 % max.
Substrate Temperature
+5 °C min. / +40 °C max.
min. 3 °C above dew point temperature
Curing Rate
| ~3 mm/24 hours (23 °C / 50 % r.h.) | (CQP 049-2) |
Skin Time
| ~35 minutes (23 °C / 50 % r.h.) | (CQP 019-1) |
Consumption
Beaded / Cordon application:
~44 ml per linear meter (with triangular nozzle)
APPLICATION INSTRUCTIONS
For the application of SikaBond® AT Universal all standard construction guidelines apply.
SUBSTRATE PREPARATION
The substrate must be clean, dry, sound and homogeneous, free from oils, grease, dust and loose or friable particles. Paint, cement laitance and other poorly adhering contaminants must be removed. SikaBond® AT Universal 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 pre-treatment procedures shall be followed:
Non- porous substrates
Glazed tiles, powder coated metals, aluminium, anodised aluminium, stainless steel and galvanised steel have to be treated with a very fine abrasive pad and Sika® Aktivator-205 shall be applied using 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, brick, and natural stone have to be primed with Sika® Primer-3 N applied with a clean brush. Before sealing allow a flash-off time of > 30 minutes (< 8 hours).
For detailed advice, please contact Sika Technical Service.
Note: Primers are adhesion promoters. They are neither a substitute for the correct cleaning of a surface, nor do they improve the strength of the surface significantly.
CLEANING OF TOOLS
Clean all tools and application equipment immediately after use with Sika® Remover-208 and/or Sika® TopClean T. Once cured, residual material can only be removed mechanically.