1-part low odour polyurethane liquid applied base coat for use in conjunction with Decothane Ultra systems Sika® Decothane Ultra Base Coat is a 1-part, low odour, cold-applied, elastic, polyurethane base coat. It incorporates Sika's unique i-Cure technology. - The quick overcoating time provides early resistance to rain damage
- The low odour characteristics makes it suitable for odour sensitive projects
- A maintenance coat is easily applied when needed without the requirement to remove previous coats
- 1-Part ready to use
- Cold applied – requires no heat or flame
- High solid content
- Can be reinforced with Sika® Reemat Premium
- Resistant to many common environmental influences
- Easily detailed around complex geometries
- Applied by roller
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Usage Sika® Decothane Ultra Base Coat may only be used by experienced professionals. The product can be used for the following roof waterproofing
applications:
A base coat for Decothane Ultra systems - Flat and sloping fully exposed roof structures
- New construction and refurbishment projects
- Horizontal and vertical detailing around penetrations, drains, roof lights and complex geometries
- Failing roofs to extend the service life
- Sensitive areas requiring low odour
The product can be used on the following substrates: - Fibre cement
- Bitumen sheet membranes
- Bituminous coatings
- Bricks
- Concrete
- Ferrous metals
- Paints / Coatings
- Stone
- Unglazed ceramic tiles
- Wood
Please note: - The product is not suitable for permanent water immersion.
- The Product is not suitable for detailing works on single ply membranes.
- The Product may only be used for exterior applications
Advantages - The quick overcoating time provides early resistance to rain damage
- The low odour characteristics makes it suitable for odour sensitive projects
- A maintenance coat is easily applied when needed without the requirement to remove previous coats
- 1-Part ready to use
- Cold applied – requires no heat or flame
- High solid content
- Can be reinforced with Sika® Reemat Premium
- Resistant to many common environmental influences
- Easily detailed around complex geometries
- Applied by roller
Packaging 15 litre metal containers
Refer to current price list for packaging variations Colour Oxide red (~RAL 3011) |
Technical Information Tensile Strength | Unreinforced | Reinforced | | ~5,6 N/mm2 | ~16,1 N/mm2 |
Service Temperature -30 °C to +90 °C
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Application Information Ambient Air Temperature +5 °C min. / +35 °C max. Relative Air Humidity 20 % r.h. min. / 85 % r.h. max. Dew Point Beware of condensation.
The substrate and uncured applied membrane must be at least +3 °C above dew point to reduce the risk of condensation or blooming on the
membrane finish. Substrate Temperature +5 °C min. / +60 °C max. Substrate Moisture Content The Product can be applied on substrates with a moisture content of ≤ 4 %.
The substrate must be visibly dry with no standing water.
The following test methods can be used to determine the substrate moisture content:
▪ Sika®-Tramex meter
▪ CM-measurement
▪ Oven-dry-method Pot Life Sika® Decothane Ultra Base Coat is designed for fast drying. High temperatures combined with high air humidity will increase the drying process. Thus, material in
opened containers should be applied immediately. In opened containers, the material will form a film within 30 minutes. Waiting Time / Overcoating | Ambient conditions | Minimum waiting time | | +5 °C / 50 % r.h. | ~14 hours | | +10°C / 50 % r.h. | ~6-8 hours | | +20°C / 50 % r.h. | ~3-4 hours | | +30°C / 50 % r.h. | ~3 hours |
Note: After seven days, the surface must be cleaned and primed with Sika® Reactivation Primer before applying subsequent coats. Times are approximate and will be affected by changing ambient conditions particularly temperature and relative humidity. |
The above design is only a sample of the options available, for reference purposes only. Our policy of continuous improvement may result in a change of specifications without notice. If any discrepencies might be between the data sheet values and standards, we reserve the rights to make technical changes. Our company will not be held responsible, as all or any of pictures, drawings, weights and dimensions details or other elements in this document are only indicative and must not be considered contractual. Contact our sales team for other specifications or custom made products.
Contact our sales team for other specifications or custom made products.
