Resins and River Tables

When it comes to enhancing the beauty of timber, the possibilities are truly endless. One exciting way to elevate the natural allure of wood is by incorporating resins and colors into your woodworking projects. The combination of timber, resin, and colors can result in stunning, one-of-a-kind creations that showcase your creativity and craftsmanship.

Resins are versatile materials that can be used to fill voids, cracks, and imperfections in timber, creating a smooth and polished finish. By filling these gaps with resin, you not only improve the structural integrity of the wood but also add a touch of modernity and sophistication to your piece. Resins come in a variety of types, including epoxy, polyester, and polyurethane, each offering unique properties and characteristics that can be tailored to suit your specific project needs.

Adding colors to resin opens up a whole new world of design possibilities. Whether you prefer vibrant hues or subtle tones, there is a wide range of pigments and dyes available that can be mixed with resin to create custom color combinations. By experimenting with different color combinations, you can achieve striking visual effects that complement the natural beauty of the timber.

One of the most popular techniques in resin and timber art is the use of “river tables.” These tables feature a river-like design created by pouring colored resin into a groove or gap in the timber, resulting in a stunning and unique piece of furniture that is sure to be a conversation starter. The contrast between the warm, organic feel of the wood and the sleek, glossy finish of the resin creates a visually captivating aesthetic that is both modern and timeless.

Working with resins and colors requires a degree of skill and patience, but the results are well worth the effort. Whether you are a seasoned woodworker or a novice looking to try something new, incorporating resins and colors into your timber projects can take your creations to the next level. So, don’t be afraid to experiment, unleash your creativity, and see where the combination of timber, resin, and colors can take you. The possibilities are truly endless, and the end result is sure to be nothing short of spectacular.

FLOW 36

Flow 36 is measured by weight so kitchen scales are needed for measuring. It is the least UV stable. Ideal for use in very small fissures and heavily pigmented pours, unless the pigment is a very light colour, as the yellowing will become very apparent. Not recommended for use in filling large areas if it is to left clear. Intense pigments, yellow-based pigments and black opaque paste will mask yellowing. Flow 36 is best used to seal live edges on timber and objects that are being embedded in a pour.

EASY FLOW

Easy Flow is measured by volume and is more UV stable thank Flow 36. The resin will remain clear for at least a year + before yellowing if kept inside. The amount of indirect UV will determine how quickly it starts to yellow. Easy Flow can be used to fill holes the size of your fist. It can be poured to a depth of 1cm. It has the same mixing and curing times as the Flow 36. It is ready for a re-pour when there is no heat coming off the surface and the surface is tacky to touch. Pigments can be stirred and manipulated very quickly after pouring, especially in hot temperatures.

Mixing and curing times are based around temperatures of 20-22 degrees. The time is halved every 5 degrees over 20 degrees.

RIVER FLOW

River Flow is for deep pours to a depth of 5cm. River Flow contains the most UV inhibitors of the three resins and is the best choice for clarity. River Flow does not generate any heat and therefore needs to be poured in large areas, to allow enough of the molecules to react, setting off the curing process. Larger amounts of the River Flow cure faster as there are more molecules reacting in a concentrated area. River Flow cannot be used to seal small fissures in timber or live edges as the surface area is not nearly large enough to set off the curing process. If applied in an area that is too small, the resin could take days to set, or not at all.

If you would like to manipulate the pigment in a deep pour, you will need to wait for it to start setting before moving the pigment around. If done too soon the pigment will simply settle back down to the bottom.

SEALING LIVE EDGES

Brush the edges with Flow 36 or Easy Flow and wait until tacky. Reapply once or twice more.

Creating a river table using epoxy resin and timber can be a rewarding project.

Here’s a step-by-step guide to help you get started:

Materials and Tools:

Two-pack epoxy resin: Make sure to choose a high-quality brand suitable for casting thick layers. See Flow Resin Above.
Timber: Select the type of timber you prefer, such as marri, jarrah, blackbutt, featured oak etc.
Table mold: You’ll need a mold to contain the epoxy and create the river-like channel.
Release agent: Apply a release agent to the mold to prevent the epoxy from sticking.
Color pigments: Choose epoxy color pigments or dyes that complement your design.
Measuring tools: Use graduated mixing cups and stirring sticks.
Sander and sandpaper: Prepare the timber by sanding it smooth.
Sealant or epoxy-compatible finish: Apply a finish to protect the wood and enhance its appearance. [Flow 36]
Safety equipment: Wear gloves, safety glasses, and a respirator when working with epoxy.

Prepare the Timber:

Cut the timber to the desired size for your table.
Plane, joint, and sand the timber to achieve a smooth and even surface.
Create a recessed groove or channel on the surface of one or both pieces of timber to resemble a river. This can be done using a router or by carving with chisels.

Prepare the Mold:

Build or obtain a mold suitable for your table size and shape.
Seal the mold properly to prevent epoxy leakage.
Apply a release agent to the mold according to the manufacturer’s instructions.

Mix the Epoxy:

Follow the manufacturer’s instructions to mix the two-pack epoxy resin.
Measure the resin and hardener in the recommended ratio and pour them into a graduated mixing cup.
Thoroughly mix the resin and hardener using a stirring stick. Stir gently to avoid introducing air bubbles.

Add Color:

If desired, add epoxy color pigments or dyes to create the desired effect.
Start with a small amount of pigment, as a little goes a long way. Mix it thoroughly into the epoxy until the desired color is achieved. Add more pigment if needed.

Pour the Epoxy:

Pour a thin layer of clear epoxy into the mold to seal the bottom.
Place the timber pieces on top, ensuring they are level and properly positioned.
Pour the colored epoxy into the river channel, ensuring it fills the groove completely.

Remove Air Bubbles:

Use a heat gun or propane torch to carefully remove any air bubbles that rise to the surface. Move the heat source gently and quickly across the epoxy, holding it a few inches above the surface.

Curing and Finishing:

Allow the epoxy to cure according to the manufacturer’s instructions. It may take several days for the epoxy to fully harden.
Once cured, remove the table from the mold.
Sand the epoxy surface to remove any imperfections or rough spots.
Apply OSMO POLYX 3032 Hardwax Oil finish to protect the wood and enhance the appearance of your river table.

Remember to read and follow the instructions provided by the epoxy resin manufacturer for the best results. Working with epoxy requires proper ventilation and safety precautions, so make sure to work in a well-ventilated area and use appropriate protective gear.