An Easy Guide on How to Layer Casting Resin!
Casting resin can be used for a variety for different uses, inks and pigments can create different artistic effects and looks to project. Creating layered bands in contrasting colors in a mold is both interesting and intricate work. It will take some time or days depending on the depth of each layer of resin.
Preparing the workspace
• Before you start pouring into the mold, check that the mold is dry, clean and on a level surface.
• Make sure the mold can be left and undisturbed whilst curing. Once the first layer has been poured, you can not pick up or move the mold. Pick a safe place to leave the mold, as it will take 24 hours to 72 hours to cure depending on which casting system you are using and how many layers you are intending to create.
• Measure a sufficient amount of resin to create the first layer and mix your chosen medium into the mixture before pouring.
• Once the first layer is partially cured (gummy or tacky characteristics) but solid enough to sustain the overlaying layer. The next layer of resin can be poured over the first layer. The layers will not mix together, they will stick seamlessly to each other.
• Continue the process until you have reached your desired layers of resins.
Placing items into the layers of resin
• Some items may need to be sealed, before they are placed in resin. Coat the item with a resin glue or sealer, and allow the item to dry.
• Pour half of the mixture into the mold before placing the item. Depending on the weight of the item, the resin may need to be partially cured before inserting the item.
• Lower the item carefully into the resin to expel the air bubbles. Pour the remaining resin into the mold and allow the casting to cure.
• If you are looking to immerse an item into the resin, for example a dandelion, we recommend placing the item straight into the batch of mixture before it has started to cure. Use a wooden stick to move the item into to place.
• Do not allow the layers to harden or cure to solid state, until the final layer of resin has been poured. Cured resin shrinks during exotherm, leaving a small gap between the resin and mold. This allows the next layer of resin to run down the sides of the other layers in the mold. If this occurs, it would require a lot of arm strength and time, to sand and polish the finished job.
• Casting epoxy resin too thickly in a single pour can cause uncontrolled exotherm. This will ruin your project, and could possibly destroy pieces you have placed in the casting.