Tree Resin: Uses and Processing Possibilities

Tree resin, often referred to as the ‘blood’ of a tree, is secreted when the bark or branches are injured. This natural substance possesses wound-healing and antiseptic properties, serving to protect and seal the tree’s wounds.

This guide outlines various uses and processing methods for collected tree resin.

Applications of Tree Resin

Ointments and Skin Creams

• Resin can be dissolved in olive oil and further processed with beeswax, or a spruce resin tincture can be incorporated into skin creams.
• These preparations can be applied topically for conditions such as skin irritations, nail fungus, or skin fungus.

Incense and Incense Sticks

• Untreated resin, once dried, can be burned over charcoal for incense.
• Thorough drying reduces the amount of black smoke produced.
• Herbs can be added to the incense mixture.
• For incense sticks, powdered resin is mixed with a potassium nitrate solution and the sticks are dipped into this mixture.

Torches

• Cotton strips can be dipped into a heated mixture of oil, resin, and beeswax, then wrapped around a thin stick to create torches.
• Alternatively, dried mullein stalks can be drizzled with this mixture.

Tinder

• Residue from resin purification can serve as an aid for starting campfires.
• Wood and fabric pieces dipped in liquid resin are also effective tinder.
• Naturally resinous wood, such as pine knot (Kienspan), burns well.

Pinecone Candles

• Dried pinecones can be dipped into hot, liquid resin.
• These burn effectively but are primarily suitable for outdoor use due to significant smoke production.

Tinctures

• Resin tinctures can be used as preservatives for skin creams and as mouthwash.
• To prepare a tincture, pure resin is dissolved in 60-80% alcohol and then filtered.

Soaps

• Pure resin is also utilized in the production of resin soaps.

Turpentine

• Turpentine can be produced by distilling resins.
• It serves as a base for paints and varnishes.

Paints, Varnishes, and Glazes

• Dissolving resin in turpentine creates a varnish. Adding color pigments produces paint.
• Glaze is made by thinning the varnish, reducing the resin content. It is used to protect paintings by applying a thin layer.

Rosin (Kolophonium)

• Rosin is a byproduct of resin distillation, with turpentine oil being the volatile component and rosin the non-volatile residue.
• It functions as a flux for soldering, helping to clean the soldering point.
• Rosin is applied to the strings of string instruments (e.g., violin, double bass, viola) to increase friction, thereby enhancing their tonal range.
• It is also used as a base material for furniture restoration.

Adhesives/Glue

• A mixture of resin, ash, beeswax, and natural fibers (from reeds or thistles) can create an adhesive.
• Resin is liquefied in a water bath and combined with beeswax to achieve the desired consistency, making the wax softer and more elastic.
• Ash and natural fibers are then incorporated.
• In industrial settings, resin glue is used in paper manufacturing through modern processes.

Brewer’s Resin/Brewer’s Pitch (Brauerharz/Brauerpech)

• This is an odorless and tasteless mixture of resin oils, pitch, rosin, and paraffin wax.
• Historically, it was used to maintain the purity of beer flavor.
• Wooden barrels were lined with brewer’s pitch to prevent the beer from coming into contact with the wood.

Jewelry Making

• Melted resin becomes transparent, allowing it to be used for filling rings with stones, pendants, or other decorative items.
• Dried resin pieces can be drilled and strung into necklaces, resembling amber.

Enhancing Grip

• Larger pieces of rosin are used to roughen the soles of ballet shoes, providing better grip.
• This application is also relevant for other sports and activities, such as for artists and climbers.

Fly Trap

• A sticky resin mixture, composed of honey, tree resin, and oil prepared in a water bath, is applied to a yellow, waterproof surface.
• This mixture traps flies and other insects, leading to their demise.