Morcem® Dry PU
Morcemdry PU is a two-component semi-elastic cladding of polyurethane free from solvents. It provides polyurethane waterproof elastic claddings of great thickness and great resistance to abrasion and acids / diluted alkali.
Additional information
Features and applications
- It can be used as primer for the elastic cladding Morcemdry PU for water tightness treatments over concrete or mortar substrates, such as dams, canals, tanks or decanters.
- Safe drinking water deposits.
- Great adherence to the substrate.
- Chemical resistance to acids in low concentrations, alkali and mineral greases.
- Abrasion resistance.
- cracking resistance ( micro- cracks).
- Potability certificate.
- Suitable according to RD140
- Interior and exterior areas (In might turn yellowish in outdoors applications, but it does not affect its mechanical properties).
- Complies according to the UNE EN 1504.
Substrates
Surfaces to be treated should be clean, without grease and dust in order to obtain an adequate adhesion. Use Implarest PU as primer.
Instructions for use
- Stir each component before mixing them to remove grounds.
- Mix completely component B with component A. This will ensure that the volume proportion between component A and component B is correct.
- Stir with an electric mixer at low speed (less tan 600 rpm) for 4 to 5 minutes, until getting a homogeneous product.
- This product is generally applied using a brush or a roll; however it can also be sprayed sprayed diluting it in a 10 to to 13% of xylene (Please consult our technical department in case of using this method).
Cautions and recommendations
- Every mixing and application equipment should be cleaned with solvents.
- Tools should be cleaned while the product is still fresh before it polymerizes.
- Please consult our Technical Department for any other application method which has not been specified in this data sheet.
- For any information regarding the safety in handling, transportation, storing and use of the product please consult the tag and the updated version of the Safety Data Sheet of the product.
Resistance to chemicals chart
NOTE: Variation in weight is measure in %
| 3 days | 30 days | 180 days | |
| Ethanol at 100% | +3.7 | +11 | +19.5 |
| Ethanol at 10% | +0.5 | +0.5 | +0.5 |
| Distilled water | +0.5 | +0.5 | +1.1 |
| Caustic potash 10% | 0 | 0 | 0 |
| Sulphuric acid | 0 | 0 | +1.1 |
| Acetic acid 5% | 0 | +0.5 | +2.2 |
| Nitric acid 10% | 0 | +0.5 | +1.6 |
| Turpentine | +1.1 | +3.2 | +8.9 |
| Super petrol | +18 | +34 | +35 |
| Fuel oil | 0 | +1.1 | +3.2 |
| Xylene | Destroyed | --- | --- |
| Butyl acetate | Destroyed | --- | --- |
Packaging
10 kilos kits. Morcemdry PU should be stored in it original packaging and in a dry place. Keep it between 5ºC and 30ºC. Once it has been open try to use it as soon as possible, as it considerably reduces its shelf life. Shelf-life: 1 year
Technical data
| Properties | Value |
| Colour | Red/ Grey/ Ral color under request |
| Mixture relation (A+B) | 80/20 |
| Specific weight | 1.3 g/cm3 |
| Solids content | >99 % |
| Post – life 20ºC | 44-55 min |
| Dry touch | 4-6 hours |
| Breathable | 24 hours |
| Time between layers | Previous layer must be dry- 72 hours maximum. |
| Service temperature | -50º C up to +150º C |
| Advised average yield | 500 g/m2 |
| Advised average thickness | 200 – 350 micras |
| Put into service after | 5 days |
| Service temperature | -5º C up to +50º C |
| Concrete adherence | 2,5 N/mm2 (own cohesion) |
| Implarest Pu adherence | > Implarest PU adherence to support |
| Abrasion Taber (100 cycles) | <0.07 g |
| Traction resistance | 15 N/mm2 |
| Tear resistance | 147 Nw |
|
Gas penetration resistance Permeability to CO2 |
1.98 x 10ª (a=7) |
| Elongation of the tear | 3 % |
| Adherence by direct traction Rigid systems without traffic load |
3,4 MPa |
| H2O vapor permeability | Class II |
| Capillary absorption and permeability of liquid water | 0.0005 Kgm-2·h-0.5 |
CE Mark
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GRUPO PUMA SL
17 |
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EN-1504-2: 2004 Morcemdry PU is a two-component semi-elastic cladding of polyurethane free from solvents. It provides polyurethane waterproof elastic claddings of great thickness and great resistance to abrasion and acids / diluted alkali. |
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| Adherence by direct traction | ≥2.0Mpa |
| Rigid systems without traffic load | |
| H2O vapor permeability | Clase II |
| Capillary absorption and permeability of liquid water | ≤0.1Kgm-2h-0.5 |
| Dangerous substances | Check Safe sheet |
| Fire reaction |
F Class |
Note
The instructions for use are given according to our tests and knowledge and do not imply any commitment by GRUPO PUMA nor free the consumer from the examination and verification of the products for their correct use. Claims must be accompanied by the original packaging to allow a proper traceability.
GRUPO PUMA is not responsible, in any case, for the application of its products or constructive solutions carried out by the application company or other parties involved in the process and / or execution of the work, limiting the responsibility of GRUPO PUMA exclusively to the damages directly attributable to the supplied products, individually or integrated in systems, due to failures in their manufacturing process.
In any case, the drafter of the work project, the technical management or the person responsible for the work, or collaterally the application company or other parties involved in the process and / or execution of the work, must ensure the suitability of the products addressing the characteristics of them, as well as the conditions, support and possible pathologies of the work in question.
The values obtained by GRUPO PUMAS's products or its constructive solutions that, as the case may be, are determined by the EN standards or any other regulation that applies to it in each case refers exclusively to the conditions specifically stipulated in said regulation and that are referred to, among others, to certain characteristics of the support, humidity and temperature conditions, etc. without being them required in the
tests obtained under different conditions, all in accordance with the relevant regulation.
