Maintenance of web tensioners
Stretch panels are made of wood; either beech or maple. Both of these woods are strong and hard-wearing, which means they should perform well even with frequent use. However, since they are still wood products, they should not be left outdoors or used in the rain, as the moisture will make the tool less durable and the wood will rot over time.
This also applies to studded web tensioners, as not only is wood susceptible to moisture, but the studs are made of steel, which rusts when exposed to moisture over a period of time.If you're buying a slotted stretcher, it's preferable to buy one that has a metal chain attached to the dowel rather than rope, as it's more likely to last longer. The string can be worn, damaged, and broken more easily than a metal chain.Linseed oil is a wood preservative, also known as linseed oil. It can be used to preserve the wood finish on blade tensioners by wiping the tool with a dry cloth from time to time.Belt stretchers made from solid wood tend to be sturdy tools designed to last a long time. Spiked plastic stretchers are generally of lower quality so cannot withstand frequent use or high pressure, but they are cheaper. In addition, belt stretchers with slots and dowels attached by a chain rather than a rope are generally of higher quality because the rope wears or breaks more easily.
This also applies to studded web tensioners, as not only is wood susceptible to moisture, but the studs are made of steel, which rusts when exposed to moisture over a period of time.
If you're buying a slotted stretcher, it's preferable to buy one that has a metal chain attached to the dowel rather than rope, as it's more likely to last longer. The string can be worn, damaged, and broken more easily than a metal chain.
Linseed oil is a wood preservative, also known as linseed oil. It can be used to preserve the wood finish on blade tensioners by wiping the tool with a dry cloth from time to time.How to determine a quality tool?
Belt stretchers made from solid wood tend to be sturdy tools designed to last a long time. Spiked plastic stretchers are generally of lower quality so cannot withstand frequent use or high pressure, but they are cheaper. 
In addition, belt stretchers with slots and dowels attached by a chain rather than a rope are generally of higher quality because the rope wears or breaks more easily.
