Aliphatic polyurethane resin

Characteristics of aliphatic polyurethane

It is a two-component paint based on aliphatic polyurethane resin With a high chemical resistance.

• Highly flexible.
• On cement bases.
• Excellent mechanical resistance.
• Color permanence.
• Packaging: 1-5-14kg.
• Colors: Colorless and à la carte.
• Supports: Pavicem microcement, concrete, mortars, Pavistone thematic rock, terrazzo, ceramic ...
• Consumption: 1 kg: ± 10 - 14 m2 (1 layer of 30 microns) and depending on the absorption of the support.
• Conservation: 12 months from the date of manufacture, in the original closed container (20 ºC) and sheltered from the elements and humidity.

Characteristics of use of aliphatic polyurethane.

• Pot life: 8 hours.
• Dry to the touch: 6-8 hours.
• To repaint: 8-12 hours.
• Total drying: ± 24 hours.

Aliphatic polyurethane execution conditions.

• In all cases it is essential to apply on dry, clean surfaces, free of loads, oils and other materials.
• On smooth and poorly absorbent surfaces, before applying the primer, sand, open pores and vacuum deeply.
• Avoid painting in the presence of humidity.
• On Pavicem cement-based surfaces, concrete, mortars ... it must be completely set (greater than 28 days) and free of humidity (less than 4%).
• Preparation of the surface with Pavex Primer.
• Avoid application with drafts, direct sunlight, risk of rain, ice or thaw.
• Outdoors the maximum application temperature will be in all cases less than 25 ºC measured on the surface to be treated.
• How to use aliphatic polyurethane.
• Mix the 2 components homogeneously.
• The low viscosity of Aliphatic Polyurethane allows it to be applied in its pure state.
• Roller, brush or spray application.
  • By spray, after dilution with a maximum 10% of Polyurethane Thinner.
  • Interval between layers: 4-12 hours.
  • Times may vary depending on the weather.

Aliphatic polyurethane performance (50 micron thickness).

• Solids by volume (v / v): 51%
• Specific weight: 1.2-1.3 g / g / ml
• Viscosity 25ºC in CF4: 100-120 sec.
• Appearance: painting.
• VOC content: 441 g / l
• Mixing ratio by weight;
• Component A: 77.5%
• Component B: 22.5%
• Persoz INTA hardness 160263: 35 sec. (24 hours).
• Flexibility r = 3mm: Complies.
• Grid adherence: 100%
• Direct impact (12.5 ball from 50 cm): Complies.

Aliphatic polyurethane observations.

Immersion tests, rapid primer application of Pavifort EP Shop Primer with a thickness of 60 microns:

Hydrochloric acid 10 and 20%

500 hours

Unchanged

Sulfuric acid 10 and 20%

500 hours

Start oxid.

Distilled water

8 months

Unchanged

Sodium chloride 3.5%

8 months

Unchanged

Sodium hydroxide 20%

15 days

Unchanged

Ammonia

3 months

Regular

Isobutyl Acetate

8 months

Unchanged

White Spirit

6 months

Well

Salt Fog 5%
sodium chloride and 37 - 38 ºC

8 months

Unchanged

Ambient:
100% humidity and 40ºC

3 months

Well

Aliphatic polyurethane application recommendations

• Application temperature: 10 -25ºC.
• On a completely dry and moisture-free basis (less than 4%).
• Always respect the same dosage.
• Do not add any additive to the mix.
• Do not apply with the possibility of humidity due to capillary lift.