CLEAR RIGID EPOXY RESIN
This CLEAR RIGID EPOXY
RESIN system is specially formulated for decorative
applications including casting.
It is totally clear and UV stabilized giving excellent optical properties
with negligible to no shrinkage on curing.
Preparation
It 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 18 to 25ºC and humidity level below 70%.
Mixing by Volume
Mixing is critical and must be accurate. 2 parts resin for 1 part of
hardener will provide a hard 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.
(Mixing by weight: 100g resin to 42g hardener pro
rata).
Application
It 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. 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
is as follows for a 500g mix at 22ºC 2+1 mix=10 hours. The hard mix (2+1)
will provide 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
Parts can be released after the following time at 22ºC. 2+1 mix =19
hours
Health & Safety.
This product is a modern formulation of the
safest epoxy chemicals available. It is however advised to follow basic
rules such as avoiding skin contact, wear masks when producing dust.
Please read our standard health and safety sheet for more information. In
case of eye contamination, wash with water and seek medical advice.
Physical
& mechanical properties
Properties
given for a temperature of 22ºC.
Resin: Clear liquid,
viscosity of 1,000 mPas.
Hardener: Clear liquid,
viscosity of 150 mPas.
Mixture: Clear liquid,
viscosity of 300 to 450 mPas.
Mixing density: 1.1.
Hardness: 95 Shore D (2+1 mix).
Elongation at break: 8% for the 2+1 mix.
Tensile strength: 66 MPa (2+1mix).
Flexural strength: 105 MPa (2+1 mix).
The optimal mechanical properties will be reached after
21 days at 20ºC or 15H at 60ºC.
TROUBLESHOOTING
PROBLEM
CAUSE
Cloudy or solid state in container:
Storage below 10ºC.
Uncured after 24-48 hours:
Wrong mix ratio and/or
temperature low.
The mixture gets
hot: High temperature and/or too
much mixture
was prepared.
Air bubbles are entrapped:
Mixing was too fast and did
not have time to release air.
Sticky, greasy
surface: Humidity level is too high.
PACKING & STORAGE
Shelf life is one year in sealed containers as
provided. Keep containers sealed and away from heat and cold.
deal for casting table tops bar tops etc. |