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Supacast - Clear Epoxy Resin

Supacast - Clear Epoxy Resin
Price: £33.50
+ VAT
PLEASE NOTE: This resin is different to normal epoxies. Please  read all information carefully to determine suitability.

Supacast Clear Epoxy Resin
system is specially formulated for decorative applications including casting. It is ideal as a table-top/ counter resin.  It is totally clear and has good UV resistance giving excellent optical properties with negligible shrinkage on curing.



Preparation
This resin can be used for casting decorative parts featuring a long working time, ease of use and low exotherm. Ensure ambient material and workshop temperature is between 18to 25ºC and humidity level below 70%.
Mixing by Volume - Resin 2 : 1 Hardener
Mixing is critical and must be accurate. 2 parts resin for 1 part of hardener will provide a hard and rigid casting once cured. Pour the hardener first then the resin. The combined liquids must be thoroughly mixed manually or mechanically to completely remove any haziness or streaks, scraping the sides and base of the mixing pot then transferring the mix to a second container and stirring is best practice for good castings. An entirely homogeneous mix is essential in achieving optimal results. It is important to only mix the correct quantity at a time as epoxy systems tend to exotherm when kept in a mass.

Application
The mixture can then be poured into a mould. The mould can be a hard mould or made of silicone rubber. Moulding can be carried out by gravity or under vacuum or pressure. It does not trap air easily and does not heat up when used properly. Temperature should be between 18 to 25ºC. Humidity level below 70%. Pot life for a 500g mix at 22ºC is approx 8-10 hours. The mix will produce a hard casting, suitable for manufacture of fancy
shapes, decorative items etc. Should a new mix be applied onto cured resin, the contact surface should always be sanded in order to enhance adhesion.
Curing
This resin will cure at different rates based on the volumes used and thickness of parts.
Typically a 500g, 10cm thick cast will be de-mouldable after 24 hours @ 25°C. The resin will continue to cure for several days at room temperature. Thin section castings can be made to cure faster by post-curing. This involves initial curing at room temperature for 24 hours, then increasing the temperature (up to 60°C max.) for 15 hours.
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