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Sikaflex® AT-Façade

Sikaflex® AT-Façade is a 1-part, moisture curing elastic sealant based on Silane Terminated Polymers. Sikaflex® AT-Façade is especially formulated for movement and connection joints on porous and non-porous substrates, where excellent weatherability and highest UV resistance are required.

Certifications/Credits

View Product Certifications
View Potential Green Star credits

Application/Purpose

Sikaflex® AT-Façade is suitable for joint sealing of movement and connection joints between the same or different substrates i.e. for concrete, steel and other metals, brick etc.

Benefits/Advantages

-Fulfils ISO 11600 F, Class 25 LM
-Movement capability 25%
-Low stress to the substrate
-Highest UV resistance, colour stability and ageing resistance
-Excellent workability (low extrusion force, perfect smoothability
-Very easy to tool and finish
-Excellent adhesion on porous and non porous substrates
-Primerless adhesion on many substrates
-Over paintable (see application notes on Technical Data Sheet)
-Solvent free
-Silicone Free
-Matt Finish

Composition

Moisture curing elastic sealant

Technical Properties

Chemical Base: 1-part Silane Terminated Polymers (PU-Hybrid technology, moisture curing)
Density: ~ 1.3 kg/litre depending on colour
Skinning Time: ~ 80 minutes (+23°C / 50% RH)
Curing Rate: ~ 3mm/24 hours (+23°C / 50% RH)
Movement Capability: 25%LM
Joint Dimensions: Min. width = 10mm, Max width = 40mm
Sag flow: 0mm, very good
Service temperature: -40°C to +70°C

Installation and Maintenance Summary

After suitable joint and substrate preparation, insert Backing Rod to required depth and apply primer if necessary. Insert cartridge into the sealant gun and firmly extrude into the joint making sure that it is in full contact with the side of the joint. Fill the joint, avoiding air entrapment. Sikaflex® AT-Façade should be tooled firmly against the joint sides to ensure complete contact and good adhesion.

Masking tape should be used where sharp exact joint lines or neat lines are required. Remove the tape whilst the sealant is still soft. Sleek joint with smoothing liquid for a perfect sealant surface.

Certificates / Compliances and Relevant Standards
	BRANZ	Low VOC
	Green Star NZ

Green Star NZ Credit Approval
Please note the information below provides an indication of 'potential points' under Green Star Office Design V.1. Green Star NZ points are weighted by the environmental significance of the category they are in. Each point contributes to the total overall score of the project but are not absolute. For further understanding of the Green Star rating tools, Greenbuild strongly recommends that users attend an 'Introduction to Green Star' seminar. More information is available at the New Zealand Green Building Council website.
Greenbuild has reviewed this product and confirms its potential contribution to points under the following credit categories:
IEQ-13	Up to three points are awarded where it is demonstrated that various finishes meet the benchmarks for low Volatile Organic Compound (VOC) content. One point is awarded for each criterion below that is achieved: • 95% of all painted surfaces are low-VOC paints OR no paint is used; • All carpets are low-VOC OR no carpet is installed; and/or • All adhesives and sealants are low-VOC OR no adhesives/sealants are used.