Visqueen TorchOn Tanking Membrane is a robust waterproofing membrane, used for heavy duty tanking and gas proofing applications. It can be used both vertically and horizontally above and below ground level to prevent the ingress of water. Visqueen TorchOn Tanking Membrane should be used with Visqueen HP Tanking Primer on touch dry concrete. Substrates should be primed with Visqueen HP Tanking Primer prior to application. Visqueen TreadGUARD1500 should be used horizontally or for external vertical applications Visqueen Protect&Drainshould be used to protect the membrane from backfill or site traffic.