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CHARACTERISTICS:
HYPERDESMO-T is a one component high solids, polyurethane fluid, which cures with the humidity in the atmosphere. It produces an elastic, highly durable, highly hydrophobic membrane with excellent UV resistance. Being aliphatic, it does not yellow/discolor when exposed to sunlight.
It is based on pure elastomeric, hydrophobic, aliphatic polyurethane resin, which results in excellent mechanical, chemical, thermal, UV and natural element resistance properties.
Apply with roller in one or two coats. Minimum total consumption: 0.2-1.0 kg/m2.
Although HYPERDESMO-T looks colored, especially when it is in large containers, it is stressed that the end result is, indeed, transparent.
Waterproofing and protection of:
LIMITATIONS:
Can be successfully applied on:
Tiles, concrete, cement roof tiles, wood, corroded metal, galvanized steel. For information about other substrates, please contact our tech department.
Concrete substrate conditions (standard):
Primer selection for special conditions and substrates: Please refer to the Primer Selection Table.
Clean the surface using a high pressure washer, if possible. Remove oil, grease and wax contaminants. If used for concrete sealing, cement laitance, loose particles, mould release agents, cured membranes must also be removed. Fill surface irregularities with the necessary product.
Priming:
Priming is required when application is on non-porous substrates, such as ceramic tiles and marble. In this case, PRIMER-T is used. It is applied with a clean cloth without leaving any pools of fluid (apply as if wiping the surface).
Mixing:
Stir well, manually or with a low speed mixer. No thinning is required but SOLVENT-01 may be used.
Application:
HYPERDESMO-T is applied as soon as the primer dries (after 15-20 minutes) with roller in one or two coats. Do not leave more than 24 hours between coats.
Minimum total consumption: 0.2-1.0 kg/m2.
Clean tools and equipment first with paper towels and then using SOLVENT-01. Rollers will not be re-usable.
1 kg, 5 kg, 20 kg and 200 kg drums.
Can be kept for 12 months minimum in the original unopened pails in dry places and at temperatures of 5-25 oC. Once opened, use as soon as possible.
Contains volatile flammable solvents. Apply in well-ventilated, no smoking areas, away from naked flames. In closed spaces use ventilators and carbon active masks. Keep in mind that solvents are heavier than air so they creep on the floor. The MSDS (Material Safety Data Sheet) is available on request.
In liquid form (before application): 80% dry matter in Xylol.
| PROPERTY | UNITS | METHOD | SPECIFICATION |
| Viscosity (Brookfield) | cP | ASTM D2196-86, @ 25 oC | 1,000 |
| Specific weight | gr/cm3 | ASTM D1475 / DIN 53217 / ISO 2811,
@ 20 oC |
1.0 |
| Solids | % | internal | 80-85 |
| Flash point | oC | ASTM D93, closed cup | 42 |
| Tack free time, @ 77 oF (25
oC) & 55% RH |
hours | – | 6 |
| Recoat time | hours | – | 6-24 |
In cured form (after application):
| PROPERTY | UNITS | METHOD | SPECIFICATION |
| Service temperature | oC | – | -40 to 80 |
| Max. temperature short time (shock) | oC | – | 200 |
| Hardness | Shore D | ASTM D2240 / DIN 53505 / ISO R868 | 40 |
| Tensile strength at break @ 23 oC | Kg/cm2 (N/mm2) | ASTM D412 / EN-ISO-527-3 | 350
(35) |
| Percent elongation @ 23 oC | % | ASTM D412 / EN-ISO-527-3 | > 350 |
| Water vapor transmission | gr/m2.hr | ASTM E96 (Water Method) | 0.8 |
| QUV Accelerated Weathering Test (4hr UV, @ 60 oC (UVB- Lamps) & 4hr COND @ 50
oC) |
– |
ASTM G53 |
passed (3,000 hours) |
| Thermal resistance (100 days @ 80 °C) | – | EOTA TR011 | passed |
Chemical (hydrolysis) resistance:
| Potassium Hydroxide, 8% | 10 days @ 50 oC | unaffected |
| Sodium Hypochlorite, 5% | 10 days | unaffected |
| Water absorption | – | < 1.4% |
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