Repair Systems — 03 — Facade & External Envelope
Movement joint sealant — polyurethane
Technical product reference for polyurethane movement joint sealant systems for masonry facade remediation on Australian Class 2 strata buildings. Covers one-part moisture-curing and two-part polyurethane sealants for masonry movement joints, control joints and construction joints — designed to accommodate differential thermal and structural movement while maintaining a weather-tight seal. Joint geometry must comply with ISO 11600 and AS 3700.
Polyurethane movement joint sealant products
Select the sealant product below to view supplier references, technical data and procurement sources.
Sikaflex-11FC+
One-part moisture-curing PU — ISO 11600 F 25 LM — ±25% movement — paintable after cure — gun-grade
Mapeflex PU45
Two-part PU — ISO 11600 F 35 HM — ±35% movement — mixing required — for wide or highly active joints
Dymonic FC
One-part high-movement PU — ISO 11600 F 35 LM — ±35% movement — no mixing — for thermally active facades
Disclaimer
This page provides general technical information only. Movement joint width, depth, spacing and sealant selection must be designed against the project's movement range, substrate type and exposure conditions per AS 3700 and ISO 11600.