PVC PRIMER
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Premium grade, liquid-applied, polyurethane roof insulation material
PU FLEX 1000 is one component liquid-applied, permanently highly elastic, polyurethane membrane used for long-lasting waterproofing. Due to the polyurethane technology, it offers the solution to sealing problems where other methods fail, such as on surfaces with standing water and ice. Cures by reaction with atmospheric moisture.
ADVANTAGES
- Life time up to 25 years
- Simple application (1 component Äì ready to use)
- Forms a walkable uniform seamless membrane
- Resistant to water
- Resistant to frost
- Maintains its mechanical properties over a temperature range of -30oC to +90oC
- Crack-bridging up to 2mm
- Excellent UV resistance
- Water vapour permeability
- The waterproofed surface can be walked on
- Defects can be easily repaired locally within minutes
- Highly cost effective
APPLICATIONS
- Waterproofing of roofs, balconies and terraces
- Waterproofing of wet areas (under-tile) in bathrooms, balconies, kitchens, etc
- Protection of polyurethane foam insulation and alternative insulation panels
- Waterproofing of flowerbeds and foundations
- Waterproofing and protection of concrete constructions like bridge-decks, tunnels, etc.
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Coverage: 1,3 – 1,8 kg/m2 |
Thinning: no |
Application: by brush |
Application: by roller |
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Light pedestrian traffic time: 12 – 36 hours 20oC |
Final Curing time: 7 days 20oC |
Exterior use |
Application temperature: 10oC – 35oC |
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Cleaning: with polyurethane solvent DIL Äì PU |
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Substrate preparation
Careful surface preparation is very important for optimum finish and durability.
- The surface needs to be clean, dry, sound and free of any contamination that may harmfully affect the adhesion of the membrane.
- Maximum substrate moisture content should not exceed 5%.
- New concrete structures need to dry for at least 28 days.
- Old, loose coatings, dirt, fats, oils, organic substances and dust need to be removed by mechanical means such as a sanding machine. Possible surface irregularities need to be smoothened.
- Clean surface thoroughly.
Repair of cracks
The careful sealing of existing cracks and joints before the application is extremely important for long lasting waterproofing results.
- Clean cracks and hairline cracks, from dust, residues or other contamination.
- Cracks and joints larger than 2 Äì 3mm must be primed locally with solvent based primer ISOCRYL PRIMER DUR, or waterbased primer ISOCRYL PRIMER DUR AQUA and allow drying. Fill all prepared cracks with elastomeric acrylic filler FLEX.
- Bigger cracks and expansion joins must be primed locally with polyurethane primer PRIMER PU 900 and filled with polyurethane sealant BONDFLEX.
- Small cracks up to 2 Äì 3mm must be primed locally with solvent based primer ISOCRYL PRIMER DUR, or waterbased primer ISOCRYL PRIMER DUR AQUA and allow drying. Apply locally one coat of PU FLEX 1000 and on the wet coat dip a fibre net (30gr/m2) or fibre tape (60gr/m2) 4 – 10cm wide and recoat with PU FLEX 1000.
Priming
- Prime absorbent surfaces like concrete, cement screed, wood with solvent based primer ISOCRYL PRIMER DUR, or waterbased primer ISOCRYL PRIMER DUR AQUA. Allow drying for 2 Äì 4 hours.
- Prime non-porous or difficult surfaces (metal, ceramic tiles, plastics) with ADHESIL PRIMER.
Application
- Stir well before use.
- Poor the PU FLEX 1000 onto the primed surface and spread it using a roller or brush, until all surface is covered. You can use airless spray allowing a considerable saving of manpower.
- After 12 hours (not later than 36 hours) apply another layer of the PU FLEX 1000. If necessary apply a third layer of PU FLEX 1000.
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