DIPON LuminaCast 4 Gem Flow Epoxy Resin - 3 Kg

DIPON® LuminaCast 4 Gem Flow Epoxy Resin – 3 kg

LuminaCast 4 Gem Flow is a highly transparent, low-viscosity epoxy resin designed for resin art, jewellery, coasters, trays, Petri Art and decorative castings between 1 mm and 20 mm.

It is thicker and slower-flowing than LuminaCast 3 Crystal Flow, giving artists greater control over pigments, patterns and decorative effects while still flowing smoothly across surfaces and into detailed moulds.

The self-deaerating formulation helps reduce trapped bubbles, while UV absorbers, n-HALS light stabilisers and low-yellowing hardener components help preserve the resin’s clarity over time.

Choose This Resin When You Need

• A highly transparent resin for decorative castings up to 20 mm
• More pigment and pattern control than an extremely thin casting resin
• Approximately 55 minutes of working time for careful positioning and detailing
• A smooth, glass-like finish for clear or coloured resin artwork
• A versatile resin for jewellery, coasters, trays and Petri Art
• A self-deaerating formulation that helps minimise trapped bubbles

What Makes Gem Flow Different?

Gem Flow sits between very thin casting resins and thicker artistic resins. Its hardener has a dynamic viscosity of approximately 890 mPa·s at 23°C, providing more control than LuminaCast 3 Crystal Flow while remaining within DIPON’s low-viscosity category.

This balanced flow makes it suitable for transparent castings, decorative layers and projects where pigments or visual effects should remain under greater control.

The formulation is solvent-free, contains bio-based components and is compatible with DIPON® alcohol colours, epoxy pigment pastes and effect pigments.

Ideal Applications

• Resin jewellery and pendants
• Coasters and decorative trays
• Petri Art and painting techniques
• Ocean and wave artwork
• Decorative mould castings
• Transparent and pigmented resin designs
• Tabletop and worktop coatings
• Glass-fibre and carbon-fibre laminates
• Sealing and decorative wood projects

Compatible Materials and Products

• Wood
• Concrete and natural stone
• Glass and metal
• Quartz sand, marble and granite
• Glass-fibre and carbon-fibre mesh
• DIPON® alcohol colours
• DIPON® epoxy pigment pastes
• DIPON® mica and effect pigments
• Suitable silicone moulds

Surfaces, moulds and decorative inclusions must be clean and dry. Always test unfamiliar pigments, colourants and materials with a small quantity before starting the main project.

When to Choose Another Resin

Choose LuminaCast 3 Crystal Flow when you need an extremely low-viscosity resin that reaches the finest mould details and produces a faster, freer flow.

Choose LuminaCast 5 Radiant Flow when you want a slightly thicker and slower-moving resin for greater control over artistic patterns.

Choose LuminaCast 6 Art Flow or LuminaCast 7 Design Flow when you need a high-viscosity resin that holds colours and decorative patterns more firmly in position.

For castings deeper than 20 mm, use EpoxyPlast 3D B50 Deep Pour, LuminaCast 8 Table Flow or another resin designed for the required casting depth. Do not exceed Gem Flow’s recommended 20 mm layer thickness.

Quick Specifications

• Pack size: 3 kg total
• Mixing ratio: 2:1 by weight
• Resin and hardener ratio: 100 parts A to 50 parts B
• Working time: Approximately 55 minutes at 23°C for a 200 g mixture
• Recommended casting thickness: 1 mm to 20 mm at 20°C
• Recommended material temperature: 20°C to 24°C
• Recommended ambient temperature: 20°C to 25°C
• Recommended minimum mixed quantity: 120 g
• Demoulding time: Approximately 16 to 24 hours at 23°C for a 20 mm casting
• Next layer: Approximately 8 to 12 hours at 20°C for a 20 mm layer
• Sanding: Approximately 5 to 7 days at 23°C
• Final hardness: Approximately Shore D82 after seven days at 23°C
• Heat-deflection temperature: Approximately 70°C after complete curing
• Finish: Highly transparent and glass-like
• Formulation: Solvent-free, self-deaerating and UV-stabilised

Mixing Instructions

• Condition both components and the working area to the recommended temperature.
• Using an accurate digital scale, weigh two parts Resin A to one part Hardener B.
• Measure the ratio by weight only. Do not measure by volume or alter the ratio.
• Mix slowly and thoroughly for 3 to 4 minutes at no more than approximately 300 rpm.
• Scrape the sides and bottom of the mixing container carefully.
• Transfer the mixture into a second clean container.
• Mix again for another 3 to 4 minutes to produce a homogeneous mixture.
• Pour within the available working time and do not exceed 20 mm per layer.

Preparation and Application Notes

• Use clean, dry and contamination-free tools, moulds, surfaces and inclusions.
• Do not mix directly inside the original resin or hardener containers.
• Mix slowly to avoid introducing unnecessary air.
• Do not scrape unmixed material from the first container into the finished project.
• Higher temperatures and larger mixed quantities accelerate the reaction and shorten the working time.
• Lower temperatures increase viscosity and may extend curing time.
• Never leave a large mixed quantity sitting in a deep container because epoxy generates heat as it reacts.
• Moisture can cause bubbles, cloudiness, surface defects or curing problems.

Layering, Curing and Finishing

For a 20 mm casting at 20°C, the next layer can normally be poured after approximately 8 to 12 hours. Environmental conditions, casting thickness and pigment additions can change this timing.

A 20 mm casting is normally demouldable after approximately 16 to 24 hours at 23°C. Demoulding does not mean that the resin has reached its complete chemical cure or final performance.

Allow approximately five to seven days at 23°C before sanding. If the surface still feels soft, rubbery or tacky, allow additional curing time before machining or sanding it.

Food-Contact Guidance

The manufacturer states that the formulation is free from listed sVHC and CoRAP substances and may come into contact with food after complete chemical curing.

Correct measuring, mixing and curing are essential. Do not use partially cured, sticky or incorrectly mixed resin for food-contact applications. Avoid using the finished resin as a cutting surface or placing hot cookware directly onto it.

Safety Information

• Read the product label, technical information and safety data sheets before use.
• Wear suitable chemical-resistant gloves, protective clothing and eye protection.
• Work in a well-ventilated area.
• Avoid skin and eye contact and do not inhale vapours or sanding dust.
• Keep the components away from children and pets.
• Do not pour uncured resin, hardener or contaminated cleaning liquid into drains.
• Absorb and dispose of spills according to the safety data sheets and local requirements.
• Store tightly closed in a cool, dry location away from direct sunlight.

These instructions do not replace the manufacturer’s technical information or safety data sheets.

Selected by EltoBert Studio

EltoBert Studio supplies carefully selected epoxy resins, pigments, mould-making materials and creative accessories for artists, makers and professional workshops. As an official DIPON® distributor in Malta, we help customers choose the correct resin and working method for each application.