Description
EcoPoxy epoxy casting kit FlowCast glass-clear is a two-component casting resin kit that contains the resin and hardener already in the correct ratio. The mixing ratio is 2:1 by volume (2 parts resin, 1 part hardener) and 2.3:1 by weight. The cured casting is water-clear and glass-like without pigments.
The resin is designed for thick pours. The recommended layer thickness is 13–38 mm per pour in castings of up to 30 litres, and layers can be poured on top of each other. The low exothermic heat output keeps the curing reaction under control even in a thick piece and reduces stress cracking. The same property makes the resin unsuitable for very thin coatings, for which a separate coating resin is used.
The working time in the mould is 8–12 hours, the surface is tack-free after 20–44 hours, and full cure takes 7–14 days. The temperature of the resin, the mould and the workspace should be 20–25 °C. The long working time and low viscosity give air bubbles time to rise to the surface, which reduces microbubbles in the finished casting.
The kit is available in 1.5 L, 6 L, 12 L, 30 L and 60 L sizes; each pack contains resin and hardener in a 2:1 ratio according to the stated total volume. The resin bonds to wood, metal, concrete, granite, laminate, bamboo, leather, ceramics, fibreglass and many plastics. The casting can be tinted: EcoPoxy colour pigment 60 ml gives a base colour and EcoPoxy colour glitter 22g adds sparkle.
Intended use and suitability:
The casting resin is designed for thick pours and encapsulations that need a clear compound and controlled heat output.
- Table tops and river tables: 13–38 mm thick layers poured between wooden boards, with a transparent or tinted result; castings over 12 litres are poured in several layers to limit the temperature rise.
- Filling cracks and knots: gaps and cavities in wood, into which the low-viscosity resin flows without separate pressure.
- Transparent encapsulations: objects and specimens inside the resin; the clear compound magnifies and highlights the encapsulated piece.
- Mould castings: decorative and functional items cast in silicone and plastic moulds.
- Combining materials: joining wood, metal, concrete, stone, leather and ceramics in the same casting thanks to its adhesion.
Package contents:
- FlowCast casting resin (component A)
- FlowCast hardener (component B)
- Components pre-portioned in a 2:1 volume ratio, total volume according to the selected model: 1.5 L, 6 L, 12 L, 30 L or 60 L
Features:
- Mixing ratio 2:1: a ratio measured by volume, so no separate scale is needed; by weight the ratio is 2.3:1.
- Layer thickness 13–38 mm: one pour is enough for a thick casting, and layers can be poured on top of each other.
- Low exothermic heat output: the heat of the curing reaction stays under control in a thick casting, which reduces stress cracking and yellowing.
- Low viscosity: the resin flows into cavities and gaps, and air bubbles rise to the surface during the long working time.
- Water-clear result: without pigment the cured casting is transparent and glass-like.
- Can be tinted: liquid pigments, metallic pigments and glitter are mixed into the mixture before pouring.
- Wide adhesion: wood, metal, concrete, granite, stainless steel, laminate, bamboo, leather, ceramics, fibreglass and many plastics.
- Low odour: the resin is almost odourless, but the workspace must still be ventilated.
Technical specifications:
- Type: two-component epoxy casting resin, 100% solids.
- Mixing ratio by volume: 2:1 (resin:hardener).
- Mixing ratio by weight: 2.3:1 (resin:hardener).
- Layer thickness: 13–38 mm per pour, in castings of up to 30 litres.
- Working time in the mould: 8–12 hours.
- Tack-free surface: 20–44 hours.
- Full cure: 7–14 days.
- Working temperature: 20–25 °C (resin, mould and workspace).
- Storage temperature: 15–25 °C.
- Appearance when cured: water-clear, glass-like; can be tinted.
- Pack sizes: 1.5 L, 6 L, 12 L, 30 L, 60 L.
- Basis of reference values: 38 mm deep casting, volume 14 L.
EcoPoxy epoxy casting kit FlowCast glass-clear instructions for use:
1. Calculating the volume: Multiply the length, width and height of the casting and add about 5% to the result for resin that flows into gaps and cavities in the wood. Use average dimensions for uneven sides.
2. Preparation: The work area must be clean, dry and dust-free. It is advisable to seal porous pieces with a thin coat of coating resin and let it dry for 4–8 hours before pouring; sealing reduces air bubbles rising from the wood. Check that the temperature of the resin, hardener, mould and workspace is 20–25 °C.
3. Measuring and mixing: Measure 2 parts resin and 1 part hardener by volume into a clean, dry container. Mix slowly for about 5 minutes. The mixture first looks milky; keep mixing until the white streaks have completely disappeared. Scrape the container walls and the mixing tool while mixing. Avoid fast whisking, which adds air bubbles. Batches over 4 litres need a longer mixing time.
4. Tinting: Add pigment only when the resin and hardener are fully mixed, and mix until even. Glitter is added only towards the end of the working time, when the mixture has already thickened.
5. Pouring: Pour the mixture in layers 13–38 mm thick. Do not scrape mixture stuck to the edges of the container into the casting: it contains unmixed spots that show as wet areas on the finished surface. Castings over 12 litres are poured in several layers to avoid overheating, and the curing heat can be cooled with a fan.
6. Layering: Pour the next layer after about 48 hours, when the previous layer has set but is still slightly tacky. If the previous layer is fully hard, sand it lightly with 220 grit and wipe it clean before the next pour. Be prepared to add resin if the surface drops as the gaps fill.
7. Curing and finishing: Leave the casting undisturbed in a dust-free space. The surface is tack-free after 20–44 hours and fully cured in 7–14 days; machining and sanding are done only after full cure. The surface can be finished with wax, oil, varnish or a thin coat of coating resin.
8. Cleaning: Uncured resin is removed from tools with acetone, thinner or isopropanol. Cured resin comes off a smooth mixing container mechanically; it is advisable to remove cured particles left in the container before the next batch.
Warnings:
- Epoxy resin and hardener irritate the skin and eyes and can cause an allergic skin reaction. Sensitisation is permanent, and repeated contact increases the risk.
- Wear nitrile protective gloves, safety glasses and long-sleeved work clothing throughout mixing, pouring and cleaning. Change gloves if they get a hole or resin gets inside.
- Ensure adequate ventilation despite the low odour. Avoid breathing vapours and sanding dust; wear a respirator when sanding.
- In case of skin contact, wash with soap and water. Do not use solvents to clean the skin: they promote absorption of the substance. In case of eye contact, rinse with plenty of water and seek medical advice.
- The curing reaction releases heat. Too large a mass poured at once or too thick a layer can overheat, smoke, crack or yellow. Keep to a layer thickness of 13–38 mm.
- The wrong mixing ratio leaves the casting permanently soft or tacky, and this cannot be corrected afterwards. Measure the volumes accurately.
- Unmixed resin and hardener are hazardous to the environment. Do not release them into drains, waterways or soil.
- Keep out of reach of children and pets. Cured resin as such is not suitable for food contact without separate approval.
- Rags and mixing containers soaked with resin can heat up. Let them cure in an open metal container before disposal.
Frequently asked questions, FAQ:
What is the mixing ratio of EcoPoxy epoxy casting kit FlowCast glass-clear resin? 2:1 by volume, that is 2 parts resin and 1 part hardener. By weight the ratio is 2.3:1.
How thick a layer can be poured at once? 13–38 mm per pour, in castings of up to 30 litres. For castings over 12 litres, several layers are recommended to limit the temperature rise.
How long does curing take? The working time in the mould is 8–12 hours, the surface is tack-free after 20–44 hours, and full cure takes 7–14 days.
At what temperature is the resin used? The temperature of the resin, the mould and the workspace should be 20–25 °C. In colder conditions curing slows down and viscosity increases, which adds bubbles.
Why did the casting stay soft or tacky? The most common reasons are a wrong mixing ratio, insufficient mixing or unmixed mixture poured into the casting from the edges of the container. The fault cannot be corrected afterwards.
Can the casting be done in several layers? Yes. The best adhesion between layers is achieved after about 48 hours, when the previous layer has set but is still slightly tacky. A cured layer is sanded with 220 grit before the next pour.
How is the resin tinted? Pigment is added to the fully mixed resin-hardener mixture before pouring; glitter is added only towards the end of the working time, when the mixture has already thickened.
Is FlowCast suitable for thin surface treatment? No. The low exothermic heat output makes it unsuitable for very thin layers; coating resin is used for thin coatings and pre-sealing.
How much resin is needed? Multiply the length, width and height of the casting and add about 5% to the result for resin that flows into gaps.
Recycling instructions:
Sort empty and dried resin and hardener canisters into plastic collection. Canisters with unmixed resin or hardener left in them, and uncured mixture, are hazardous waste and are taken to a hazardous waste collection point. Do not pour the contents into drains or onto the ground. Cured resin is not hazardous waste: mixing containers, mixing tools and sanding dust are disposed of as mixed waste and larger pieces of resin as construction waste. Sort packaging cardboard into cardboard collection. Let rags soaked with hardener or resin cure in the open before disposal.
