For technical information see
One Component, Moisture-Curing Expansion Joint Sealant
ARDEX RA 030 PLUS is a one-component, moisture curing, professional grade, elastomeric, polyether expansion joint sealant. It has excellent bond strength to most porous and non-porous substrates without the use of a primer and can be painted over. ARDEX RA 030 PLUS is non-sag and may be applied on vertical and horizontal surfaces.