Material description
The cast resin PU 300 is a two-component, natural
coloured, unfilled polyurethane cast resin system. This
excellent pourable system meets the type GNW according
to VDE 0291 part 2 from 11/79. After final hardening the
compound will be soft-elastic.
Application
Insulation of electrical components, especially to seal
1 kV straight and branch joints.
Processing
The two components (resin and hardener) are one unit,
exactly fine-tuned to each other. There is no further need
to weight out the components. The packing will be either
in two separate tins or in double-chamber bags. Before
you add the hardener, the resin-component should be
mixed up.
In case you choose the packing in tins, the hardener must
be filled completely into the resin and both components
must be mixed with constant stirring. If you use the doublechamber
bags, you must remove the separator, so that
both components run together.
After that both compontens can be easily mixed by
kneading the bag.
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The time of mixing will be about 3 minutes. You can
recognize a homogenous mixture by the uniform colour
of the compound. During mixing it is important, that only
few air bubbles are mixed into the compound.
The processing time is dependent on the ambient
temperature. At lower temperatures you have longer and
at higher temperatures you have shorter processing times.
The speed of hardening also depends on the ambient
temperature and to the poured quantity. The final hardness
will be reached after 2 to 3 days.
Storage
The original closed tins/bags have to be stored in a dry
and frost-free place. Open units must be used at once.
The processing-guarantee is 24 months after production
date (see labels on the containers).
Hazardous / Safety advice
Follow the advice printed on the containers and the
relevant safety data sheets for resin and hardener.
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