Material description
The joint compound PU 4009 black is a two-component,
filled polyurethane cast resin with added bitumen. After
final hardening, the compound will be elastic and is
insensitive to frost and heat.
Application
For sealing of joints in roads and stores, especially for
the sealing of induction loops. The compound shows
good adhesion to concrete, eternit, asphalt and different
synthetics. As the hardened compound will keep elastic,
you can remove the compound out of the joint by using a
knife or a similar sharp tool.
Processing
In order to have the best adhesion of the joint compound
to the flanks, the joints which have to be sealed must be
dry and free of dust and oil. The use of a primer is not
necessary. The sealing of the joints may only carried out
when the weather is dry. If necessary, the joints have to
be covered.
The two components (resin and hardener) which are
one unit, are exactly fine-tuned to each other. There is
no further need to weight out the components.
Before you add the hardener, the resin should be mixed
up. The hardener must be filled completely into the resin
and both components must be mixed with constant
stirring. |
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 related to the ambient temperature.
At lower temperatures you have longer, respectively at
higher temperatures shorter processing times. You can
fasten or slow down the time, by storing the components
in a warm (e.g. in the car) respectively cool place (e.g. in
the shadow) before processing.
The reaction heat of the compound while hardening is
negligible. After 1 to 2 hours you can walk on the joint.
The speed of hardening depends on the ambient
temperature and to the joint cross-seciton. The final
hardness will be reached after 3 to 5 days.
Storage
The original closed tins have to be stored in a dry and
frost-free place. Open units must be used at once.
The processing-guarantee is 12 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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