The Spaun GM Universal in black seals the transition between the aerial mast and the roof tile. It is super-elastic, takes pipes from 32 to 60 mm and trims down for thinner ones. Black is the choice for dark roof coverings – on concrete tiles, slate and bitumen the seal blends into the surface.Technical dataTypeGM Universal, rubber mast sealPipe diameter32–60 mmMaterialsuper-elastic, UV-resistantAdjustmenttrims down to smaller diametersApplicationaerial masts, satellite dishes, rafter mounts, roof tilesColourblackHow it sits correctlySlide it over the pipe and you are done – the material tightens by itself and holds that tension permanently. For smaller diameters cut off the topmost ring and check again until the opening sits closely around the pipe. Below, the seal settles into the shape of the roof tile and follows its profile.Where black is the right choiceOn dark concrete tiles, slate, bitumen shingles and flat roof sheeting the black version stays discreet. On red clay tiles the red one suits better; technically the two are identical.Together with the lead flashingOn a tiled roof this combination is the usual build-up: the lead flashing is formed into the roof surface and joins the neighbouring tiles, and the seal closes the transition to the mast on top of it.Masts, mounts and further installation accessories are listed under Mounting material.

The Spaun GM Universal in red seals the transition between the aerial mast and the roof tile and is matched to red and red-brown clay tiles. It is super-elastic, takes pipes from 32 to 60 mm and trims down for thinner ones.Technical dataTypeGM Universal, rubber mast sealPipe diameter32–60 mmMaterialsuper-elastic, UV-resistantAdjustmenttrims down to smaller diametersApplicationaerial masts, satellite dishes, rafter mounts, roof tilesColourredHow it sits correctlySlide it over the pipe and you are done – the material tightens by itself and holds that tension permanently. For smaller diameters cut off the topmost ring and check again until the opening sits closely around the pipe. Below, the seal follows the profile of the roof tile.Why the colour countsOn a red tiled surface the mast penetration is the one point that breaks the colour – and that is exactly where the seal sits. The red version takes the attention away from it. That matters above all when the roof faces the street or a design specification applies. Technically it matches the black version.Together with the lead flashingOn a tiled roof this combination is the usual build-up: the lead flashing is formed into the roof surface and joins the neighbouring tiles, and the seal closes the transition to the mast on top of it.Masts, mounts and further installation accessories are listed under Mounting material.