Vimaseal PU | Polyurethane sealant
One-component moisture-resistant polyurethane sealant for floors
Polyurethane sealant for concrete floors
Polyurethane floor sealant
Polyurethane sealant for seams
Vimaseal PU | Polyurethane sealant
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For sealing and gluing, between similar and dissimilar bases, in the automotive industry and the naval industry.
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The sealant is used with metal, concrete, glass, steel, wood, anodized aluminum, tiles, PVC, etc.
Physical properties of polyurethane sealant
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Elastic, resistant to movements;
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Good adhesive ability to heterogeneous materials;
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It is easily applied at temperatures from +5 to +40 oC;
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Very good resistance to aging (UV and moisture);
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High mechanical strength;
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Operating temperature: from -20 to +90 oC;
- Paintable
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Technical characteristics |
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Unvulcanized rubber |
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One-piece |
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| Consistency |
not liquid
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| Layer formation time |
30 min (23 ° C, relative humidity 50%)
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| Curing speed |
4 mm / 1st day (23 ° C, relative humidity 50%)
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| Specific weight |
1.23
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| Hardness according to SHOR |
50
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| Coefficient of elongation |
25%
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| Tensile strength (ISO 8339) |
1.2 N / mm 2
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| Modulus at 100% elongation (ISO 8339) |
0.6 N / mm 2
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| Relative elongation at break (ISO 8339) |
420% |
Preparation of the seam
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The surface of the seam must be clean, dry and free from dust , oil, grease, old sealant and any traces of contamination that may affect adhesion.
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The surface should be degreased with a solvent using a clean cloth. Use degreased compressed air to remove dust.
Priming
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VIMASEAL-PU - polyurethane sealant usually does not require a primer on most bases;
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In specific cases, seam polyurethane primer (Joint Primer) is used for seams.
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Use the sealant from 15 minutes to 3 hours after applying the primer.
Seam
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The possibility of applying the sealant is determined on the spot by experimentally filling the seam;
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The width of the seam should be twice the depth.
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When the width is greater than 20 mm, the depth is equal to half the width;
- The width of the seams should not be less than 5 mm and more than 40 mm.
Sealant application
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We cut the nozzle of the conical nozzle diagonally to form a hole proportional to the width of the seam;
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We put the cartridge / "sausage" in a manual or pneumatic gun-injector, and fill the seam with sealant;
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Form with the help of a spatula from still unhardened sealant, the surface of the seam in the form of a negative crescent;
- For the sealant to work well, it is important that the sealant joins the two sides of the seam;
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To achieve this goal, install a polyethylene or polyurethane foam cord in the seam .
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Apply the sealant, making sure that all cavities and voids (through which the material may leak) are closed.
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Using a sealant tool, spread the material along the seam with a little pressure. This operation is performed with a spatula before the formation of a film;
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Excess sealant should be removed, and the surface should be cleaned with a solvent (for example, white spirit);
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Hardened sealant can only be removed by sanding.
Packaging
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Cardboard box of 25 aluminum cartridges;
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300 ml or 15 aluminum sausages of 600 ml each.
Expiry date
9 months minimum (when stored in places with normal temperature and humidity).
