Rap Spray & Seal mastic Sealna with 400 ML 3183

Flexible and durable coating to cover cracks and holes.
Can be applied on wet or damp surfaces.
Thick formula allows a rapid, heavy coating.
Specially formulated to not sag or crack.
Suitable for heavy-duty plastic, slate, tile, felt, asphalt and metal.
Perfect for sealing around guttering, pipework, roofing etc