Description
Schwan mason’s line 1.7 mm is made of polypropylene (PP) and has a diameter of Ø 1.7 mm and a length of 50 m. The line comes on a reel. The colour is red and white, so the line stands out against brick and block surfaces as well as soil and gravel.
The line is stretched between two fixing points, and the taut line forms a straight reference line. In masonry it shows the height and straightness of each course; in paving it shows the line and fall of the kerbstones. The line is a measuring and marking aid and carries no load.
Polypropylene is a light plastic fibre. Dirt and moisture do not affect the line, so it suits wet site conditions and outdoor work. The thin 1.7 mm thickness keeps the line accurate when it is stretched taut between the fixing points.
The line is part of the mason’s line range from the German brand Schwan Werkzeuge, which offers the same polypropylene line in 1.0 mm, 1.7 mm and 2.0 mm thicknesses and on 50 and 100 metre reels. The line is made in Germany. The reel label shows the product number, dimensions and colour, so the right line is easy to identify in the site store.
Intended use and suitability:
A mason’s line is used wherever a structure has to be built in a straight line or to the same level. The line is fixed, for example, to masonry profiles, corner blocks, line blocks or wooden stakes driven into the ground.
- Brick and block masonry: The line is stretched from corner to corner at the height of the top of each course. The bricklayer lays the units with their top edge level with the line, which keeps the course straight and level. The Schwan aluminium straightedge is suitable for checking the straightness of the surface alongside the line.
- Paving and kerbs: When laying yard paving and kerbstones, the line marks the edge line as well as the height and fall of the finished surface.
- Fences and foundations: Fence posts, pier foundations and formwork are aligned to the line before digging and pouring.
- Plumb line: The line can be used with a plumb bob to check verticals. The Schwan plumb bob 500 g, without line is supplied without a line, so it needs a separate one.
- Long lines: If you need a longer roll or a thicker line, the alternative is Schwan mason’s line 2.0 mm 100 m / roll. Schwan mason’s line 1.7 mm suits jobs where 50 m is enough and a thinner line is an advantage.
Package contents:
- Mason’s line: 1 pcs, Ø 1.7 mm, 50 m, red and white, on a reel.
Features:
- Polypropylene (PP): A light plastic fibre that is not affected by dirt or moisture.
- Resists dirt and moisture: The line suits wet sites and outdoor work.
- Thin 1.7 mm line: A thin line gives an accurate reference line in masonry and paving.
- Red and white colour: The two-colour line stands out against both light and dark backgrounds.
- Reel: The line is wound on a reel, so you can pay out just the length you need.
- Made in Germany: The line is manufactured in Germany.
Technical specifications:
- Material: polypropylene (PP)
- Diameter: 1.7 mm
- Length: 50 m
- Colour: red / white
- Moisture resistance: not affected by dirt or moisture
- Country of manufacture: Germany
Schwan mason’s line 1.7 mm instructions for use:
- Fixing points: Set up sturdy fixing points at both ends of the line, for example corner blocks, line blocks or wooden stakes. Mark the height at the same level at both ends.
- Fixing: Tie the end of the line to the first fixing point and pay out line from the reel to the other end.
- Tensioning: Pull the line taut and fix it at the other end. A taut line does not sag in the middle, so the line stays straight.
- Checking: Check the height of the line with a spirit level or laser at both ends and, if needed, at intermediate points. On long spans you can add a support in the middle of the line.
- Working: Place the stones or structures level with the line without pressing against it. A stone that touches the line shifts the line.
- Moving and removal: Raise the line to the height of the next course, or take it down and wind it back onto the reel. Store the reel in a dry place out of direct sunlight.
Warnings:
- Tripping hazard: A taut line is hard to see on site. Mark walkways and take the line down when it is not needed.
- Eye injuries: A taut line that breaks or comes loose can strike the face. Wear safety glasses when tensioning.
- Children and pets: A long line is a strangulation and entanglement hazard. Keep the line out of reach of children and pets.
- Not for lifting or securing: The line is a marking tool and must not be used for lifting or lashing loads or for fall protection.
- Heat: Keep the line away from open flames and hot surfaces, because polypropylene melts.
Frequently asked questions (FAQ):
How taut should Schwan mason’s line 1.7 mm be stretched?
In masonry, Schwan mason’s line 1.7 mm is stretched so taut that the polypropylene line shows no visible sag between the fixing points. On long spans you can add a support in the middle of the line.
Does the polypropylene line withstand wet conditions and rain?
Yes. Schwan mason’s line 1.7 mm is made of polypropylene and is not affected by dirt or moisture. The line can be used for outdoor work and on wet sites.
Why is the mason’s line red and white?
The two-colour red and white Schwan mason’s line 1.7 mm stands out against light brick and concrete as well as dark soil and asphalt.
What is the difference between the 1.7 mm and 2.0 mm mason’s lines?
Schwan makes the same polypropylene line in 1.0 mm, 1.7 mm and 2.0 mm thicknesses. The thinner 1.7 mm line gives a more accurate line and weighs less. The thicker 2.0 mm line is sturdier and easier to see over long distances.
Can the mason’s line be used as a plumb line?
Yes. Schwan mason’s line 1.7 mm is tied to a plumb bob. The line hanging from the weight shows the vertical.
Schwan mason’s line 1.7 mm recycling instructions:
The line is polypropylene (PP). Put a worn or broken line in mixed waste, unless your local waste management instructs separate collection of plastic products. The plastic reel and the label go to plastic packaging or mixed waste collection according to local instructions.
