SMALTURA® T
Monocomponent polyurethane waterborne transparent
Single-component water-based polyurethane varnish. Transparent finish for resin coatings or concrete surfaces.
Glossy appearance.
Type: Polyurethane Water Top-coatings
Description
Easy-to-use one-component product based on polyurethane dispersion in aqueous vehicle.
By evaporation of water, a continuous film is formed that presents:
- high anchoring properties on various supports
- excellent mechanical properties
- good abrasion resistance
- good solvent resistance
- excellent resistance to atmospheric agents
Use
Finishing for epoxy-cement thickness coatings.
Finishing of resin coatings and to make surfaces painted with SMALTURA more shiny.
Transparent painting of cement or brick surfaces.
Support
The substrate must have a minimum compressive strength of 25 N/mm2 and a tensile strength of 1,5 N/mm2.
Preparation of the support
Each support must be cleaned, degreased and free of old enamels during detachment.
Sanding or surface abrasive to promote adhesion.
Spread a shoot of primer FIBROPROTEX PRIMER (0.15–0.20 kg/m2) on absorbent substrates such as bricks or cement surfaces.
Sand the surface. Such sanding is not necessary if it is applied SMALTURA T on SMALTURA and if no more than 2 days have passed.
Application
Homogenize the product before use.
Use the product "as is"; It is possible to dilute with water up to a maximum of 5%.
Avoid too thick films: you would delay the development of the final characteristics of the film, in particular deep drying and sensitivity to water.
N.B.: SMALTURA T cannot be applied directly on absorbent substrates because film defects may be found.
Technical specifications
| PRODUCT DATA | |
|---|---|
| Colour | Transparent |
| Specific gravity (at 25 °C) | 1,00 - 1,05 g/ml |
| Viscosity (at 25°C) | 250 +/- 50 mPascal (spindle 1, rpm 20) |
| Dry residue | 38,7% in peso |
| Flash point | None |
| Solvent for cleaning tools | Water (before film formation) and Ethyl alcohol (after) |
| Hazard symbols on labels | None |
| Storage | 12 months, store in a dry place at a temperature between 5 °C and 35 °C |
| APPLICATION DATA AND TIMING | |
|---|---|
| Recommended thinner | Water |
| Dry to the touch (50% R.H.) | at 10 °C 40-50 min at 25 °C 20-30 min at 30 °C 5-15 min |
| Coverage (50% R.H.) | at 25 °C 90 min |
| Environmental conditions of use | Temperatures between +10 °C and +30 °C and R.H. < 70% The degree of brilliance of SMALTURA T It is influenced by the following factors: - Material temperature - Ambient humidity - Application temperature - Porosity of the support |
