Silk Fly Lines Usage and Maintenance

Whether you are already well-versed in the use of silk fly lines or are trying them for the first time, I would like to share prompts that may prove beneficial.

Break-in Process

My Silk Fly Line is crafted from premium braided Italian silk. After the braiding process, the line undergoes a pressure treatment with a mix of drying oils and varnish, ensuring durability and optimal casting weight.

During this process, oil and varnish coat the line’s exterior. Initially, the line may feel slightly stiff and requires a short break-in period to get his best characteristics. During the first four or five fishing trips the excess drying oil and varnish rubs off during casting, and, at the same time, the fly line also becomes softer.

To accelerate the break-in process, simply use your silk line while fishing. That’s all it takes! Once the silk line has broken in, it will remain at that state almost forever, the repeated greasing of the line feeds the drying oil core and protects the outer surface.

During this break-in period, it is advisable to dry the fly line thoroughly after each outing and apply a small amount of grease when it is dry to encourage the line to soften.

Afterwards, you can apply the grease whenever you feel it is needed, but it is always helpful to give it a quick coat before heading out to fish—this task will take you no more than a minute.

Using a Silk Fly Line

In 1998 Reed F. Curry wrote: “A silk line must be dressed with a flotant before starting the day streamside. The subject of line dressings used to be good for an hour’s argument at fishing lodges anywhere in North America”.

He was correct; recipes for treating silk fly lines have long been a popular topic among anglers. But let’s go deeper.

Silk exhibits sensitivity to both acidic and alkaline substances; as such, it is highly advisable to utilize only materials with a pH value as close to neutral as possible. When applying commercial products for greasing fly lines, these formulations are generally designed to maintain the integrity of silk. Conversely, if opting for a homemade solution, it is imperative to consider the aforementioned factors carefully.

For reference regarding the pH scale:

Acidic: pH levels below 7 are considered acidic.

Neutral: A pH of 7 is classified as neutral.

Alkaline: pH levels above 7 are categorized as alkaline.

Of course, substances that are slightly acidic or alkaline will not have a significant effect on silk; nevertheless, the use of mineral greases or recipes based on mineral grease and beeswax will not damage the silk fly line. I would advise against animal fats, as these tend to become rancid over time due to oxidation and bacterial activity causing unwanted effects.

One of my preferred line grease recipes involves melting together 70–80% Vaseline or Paraffin with 20–30% beeswax. This process should be conducted in a well-ventilated area due to the flammability of the ingredients. Once fully combined, pour the mixture into a small metal container and allow it to cool completely. When stored in a compact, pocket-sized container, this product can provide long-lasting performance for greasing fly lines or flies.

The method of grease application depends on individual preference; someone use their fingers, while others opt for a felt pad or cloth. Regardless of the method chosen, it is essential to remove any excess grease, as only a very thin coating is required.

Remember never applying the grease when the line is wet because that will trap the moisture inside. In DT lines, apply the dressing after having turned the line around following the same rules, this will keep the line dressing uniform.

Over the course of a fishing day, perhaps within four/five hours, an oiled silk line, like an oiled dry fly, will have absorbed sufficient water to cause it to sink, I’m sure You saw this happening also with common PVC lines especially those with PVC surface not in perfect conditions. At this point you have some options:

• If you’re using a DT Line, simply take a rest and switch the line end for end you’ll have a fresh dry line to use for the rest of the day.
• In summertime, you might unspool the line and let it dry after pulling through a chamois waiting for the afternoon hatch while you’re taking your favourite drink.
• If you fish with more than one line, you won’t have problems because you will just remember to dry all your lines well when you get home.

Maintenance and Storage

Mould presents a significant risk to silk lines. It is essential to ensure that lines are thoroughly dried before storage. Exposure to moisture can result in fungal growth, which may severely compromise the integrity of the silk and reduce its breaking strength to only a few pounds but, with proper care, a silk line can last over 20 years, improving with age— unlike PVC lines which inevitably deteriorate in three or four years.

To maintain and store your silk line correctly, follow these simple guidelines, most of which may already be familiar to you:

• I suggest you unwind it from reel and let it dry out after every outing.
• Keeping it on the reel when the line is dry is fine but, in the off-season, it is better to unwind it from the reel, wrap it in large coils so that air can pass through, grease and keep it in a dry place.
• Do not use any kind of detergent, oil, alcohol or thinner nor let it dry near a heat source. To clean the line simply wash it with warm water, gently wipe it with a soft cotton cloth and let it dry naturally.

Over time, you may notice the line’s colour darkens. This is normal and results from the natural polymerization of the impregnating oils.

At same time, signs of a softer colour in parts most used is the sign that unwanted excess varnish has started to rub off and again, that’s normal and useful, not a defective finish.