RocSeal PS Primers are used when preparing porous and non-porous surfaces prior to the installation of polysulphide based sealants.
RocSeal PS Primer No. 1 is used for substrates such as concrete, brickwork, stonework, asbestos and timber. Due to the highly penetrating nature of RocSeal PS PS Primer No. 1, staining may occur on some surfaces. It is therefore advisable to check a small sample area prior to priming the full area.
