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MC Konudur 250 OM-PL
resin specification
Two-component organic-mineral resin (winter modification)
designed to impregnate
glass fibre laminates and hoses
for the part redevelopment of waste water pipes.
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| Properties: |
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Areas of application |
- Low viscosity, high chemical
resistance, for the repair of pipes used in wastewater areas
exposed to constant humidity.
- Two component system resistant
to a wide range of acids and alkaline solutions
- To be used on damp mineral
based substrates (i.e. in waste water pipes)
- Good adhesion on concrete,
brick and ceramic substrates
- No physiological disadvantages
- Low form work times
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- For the impregnation and
deep penetration of glass fibre laminates and hoses with
reinforced polyester felts.
- Repair of damaged pipes,
pipings and construction elements in connection with wastewater.
- Used for water infiltration,
cracks, root damages etc.
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Technical Data for Konudur 250 OM-PL
Polyurethane Resin
(Technical values refer to + 20ºC and 50%
relative humidity)
| Base Component |
Organic mineral resin |
| Colour |
beige-brown |
| Number of components |
2 |
| Mixing ratio |
1 part by volume component
A
2 parts by volume component B |
| Viscosity |
Component A:560mPas
Component B:350 mPas
Mixture: 800 mPas |
| Density |
1.502 g/cm3 component A
1.200 g/cm3 component B |
| Pot life at +5ºC |
approximately 27 min |
| Hardened product: in a 160g tin at +5ºC
5 mm thick (30 g) at +5ºC |
42 minutes 55 minutes |
| Tack free: in a 160 g tin at +5ºC
5 mm thick (30g) at +5ºC |
after 60 minutes after 120
minutes |
| Coverage |
dependent on the density
and thickness of the laminates/hose (Generally 0.9 l/mm fabric
thickness and m2) |
| Minimum application conditions |
> + 5ºC up to +
20ºC ambient and substrate temperature |
| Higher temperatures shorten
while lower temperatures lengthen the pot life. A temperature
change of ± 10ºC either halves or doubles the pot
life respectively. |
Method of application:
Substrate preparation
The substrate must be clean and free
from any dirt, dust, oil and other contaminants. The minimum concrete
compressive strength should be >25N/mm2. A substrate pull-off strength
of > 1.5N/mm2 is required. Please refer to our technical leaflet
"Substrate and Surface Preparation". The substrate may be dry or slightly
moist. |
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Mixing
Konudur 250 OM-PL consists of a base
hardener component, which is supplied in pre-batched containers. Before
application, both components must have a temperature of approximately
10 - 15ºC. The two components should be thoroughly mixed (3 minutes),
preferably by a mechanical mixer rotating at a low speed. The pre-batched
containers should be emptied for environmental reasons and in order
to comply with the mixing ratio. |
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Application
Konudur 250 OM-PL is applied by impregnation
or deep penetration respectively. All the material to be impregnated
(fabrics, felts or hoses respectively) must be fully dry. If dampness
is present a suitable bond of the fibres will not be achieved. This
may lead to reduced strength of the liner or to deficiencies whilst
hardening. |
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General
Coverage rates are dependent on texture,
temperature and porosity of the substrate as well as product storage
and workability temperature. To determine this exactly, a sample area
should be laid and coverage noted. Higher temperatures shorten while
lower temperatures lengthen the pot life. The general rule is that
a temperature change of + 10ºC either halves or doubles the pot
life respectively. |
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| Before application please read the "Safety Measures
for Handling Solvent containing Coating substances and Chemically
Reactive Resins". |
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