There are several different Epoxy Resin available in South Africa for Woodworking Projects. What kind of epoxy should I use for a Table Top? There are several different quality types and in this article, I will show you which ones to use.
I often get the question “What kind of epoxy should I use for a tabletop?” and the short answer to that is You need a Table Top Epoxy Resin which casts layers of up to 5mm at a time, and one of the best Table Top Epoxies to use for this purpose is the Pourpoxy Table Top Epoxy Resin.
What are the mixing ratio for Table Top Epoxy?
All Epoxy Resins are mixed by weight. The reason for this is that Epoxy Resins (The Part A and Part B) differs in weight and the volume and weight can differ. Each Product Manufacturer normally displays the mixing ration on the containers.
Most Table Top Epoxies have a Mixing Ratio of 100 Parts A to 60 Parts of B.
The mixing ratio of an epoxy resin is determined by the type of epoxy and they all have different curing times.
When an Epoxy Resin is poured, the Epoxy will heat up. If the wrong type of Epoxy is used, the heat will become excessive and damage the epoxy, and of course your project.
Casting Epoxy has a longer curing time than Table Top Epoxy and Deep Casting Epoxy has an ever longer curing time.
What kind of epoxy should I use for a Table Top?
Before we can answer the question of what kind of epoxy to use, we first have to determine what exactly the application will be.
You can use a thin layer of epoxy on top of a table, which will use Table Top Epoxy. If you want to fill up cracks and portions of up to 5cm, you can use Casting Epoxy.
For larger areas, and Epoxy River Tables, it is always better to use Deep Casting Epoxy Resin. Deep Casting Epoxy Resin takes about 2 – 3 days to become hard while Table Top Epoxy will set overnight.
All Epoxy Resins normally fully cure in seven days.
What is the difference between deep pour and table top epoxy?
Deep Pour Epoxy Resin is used for larger areas and takes longer to cure. Because of the structure of the Epoxy, it does not heat up that quickly. It is also a much thinner epoxy and does not produce that many bubbles. Bubbles in Epoxy can become a problem, and you need to learn how to prevent and handle them.
Deep Pour Epoxy or Casting Epoxy is used for thicker layers, while Table Top Epoxy is used for toplayers
Table Top Epoxy on the other hand will heat up much quicker, but because it is used for thinner applications (up to 5mm) it is not a problem. Table Top Epoxy Resin will harden overnight and you can add multiple layers on top of each other once it is hardened. If you leave it for say a week, you first have to sand it down a little so that the two layers can grip better.
How thick can you pour table top epoxy?
Table Top Epoxy Resin has very good self-levelling properties and can therefore be applied in very thin layers. Normally a Table Top will be covered with a 1,5mm layer although you can go thinner than that.
The quality of the Epoxy also has an influence on how thick you can apply it.
Layers can however be poured to about 5mm at a time without any problem. You can add layers on top of each other and build it up to the thickness that require.
How do I make my resin table top clear?
If you use a Quality product like Pourpoxy Table Top Epoxy Resin, the quality of the Epoxy allows you to get a very flat shiny clear surface without any further actions. Table Top Epoxy is often used in Art Projects to cast a thin clear layer on top of paintings, canvasses or other art projects.
Pourpoxy also provide Transparent Pigments in different colors which allows you to have a colour tint in your epoxy layer. It can also be mixed with other types of pigments.
Table Top Epoxy can also be sanded down and polished to get a shining surface. I have a video available that shows you step by step on how to polish epoxy.
How long does Table Top Epoxy take to cure?
Table Top Epoxy hardens overnight but it takes seven day to fully cure. It is possible to sand the epoxy after two to three days, but my recommendation is always to let it dry properly before you sand it down.
If it does not make a very fine powder when sanding it, it is normally not dry enough.
Once Table Top Epoxy has cured completely, it is very strong and can easily hold two pieces of wood together without any problem.
In projects like woodturning, you should usually use a deep casting Epoxy, and let it cure for at least seven days before turning the project.
Can I Mix Pigments into Table Top Epoxy?
The beauty of most Epoxy Resins is that you can easily add pigments to it, providing you have the right quality pigment. With Table Top Epoxy Resin, you can use the Pourpoxy Transparent Pigments, Metallic Pigment Powders and the E-Poxy Liquid Pigment Paste.
You should however only use small quantities of Pigment in the Epoxy and ensure that you mix it well. Because some pigments (especially the liquid paste pigments) never dries, it will mess your project up if not properly mixed.