Sikalastic® Rapid Asphalt Primer
Two component, fast-reactive primer for asphalt surfaces
Sikalastic® Rapid Asphalt Primer is a fast reactive primer used as a barrier on asphalt substrates in preparation for the later application of Sikalastic® Rapid waterproofing or surfacing products.
- Very good adhesion to asphalt substrates
- Fast curing
- Can be applied at sub-zero temperatures
- Hydrolysis and alkali resistant
- Easy and fast application
- Solvent-free
Usage
- Used for the pre-treatment (primer and barrier coat) of asphalt substrates (eg mastic asphalt)
- For new construction and refurbishment projects
Advantages
- Very good adhesion to asphalt substrates
- Fast curing
- Can be applied at sub-zero temperatures
- Hydrolysis and alkali resistant
- Easy and fast application
- Solvent-free
Packaging
SUMMER | |
Sikalastic® Rapid Asphalt Primer | 10.00kg |
Sikalastic® Rapid Catalyst | 0.30kg ( 3 x 0.1kg) |
Total | 10.30kg |
WINTER | |
Sikalastic® Rapid Asphalt Primer | 10.00kg |
Sikalastic® Rapid Catalyst | 0.60kg (6 x 0.1 kg) |
Total | 10.60kg |
Colour
Pigmented liquid - White
Product Details
Chemical Base
Two-component Polymethylmethacrylate (PMMA)
Resin and catalyst
Shelf Life
Unopened products have a shelf life of at least 12 months.
Storage Conditions
Store products sealed in their original airtight container and in a cool, dry and frost-free place. Direct sunlight on the containers should be avoided, including on site. After removing some of the contents, reseal the containers so they are airtight.
Reference should also be made to the storage recommendations of the material safety datasheet.
Density
1.08 g/cm³ (white)
Application
Ambient Air Temperature
-5 °C min. / +35 °C max
Relative Air Humidity
The relative humidity must be ≤90%
Dew Point
Beware of condensation. Surface temperature during application and cure must be a minimum of 3°C above dew point.
The substrate temperature must not be less than +3°C if a topping is applied to the surface. Reaction problems can occur at lower temperatures.
Substrate Temperature
-5 °C min. / +50 °C max
Substrate Moisture Content
The surface to be coated must be dry and ice-free
The surface must be protected from moisture until the coating has hardened
Pot Life
The material in opened containers should be applied immediately.
At 20°C, 2% catalyst the pot life is approximately 15 minutes
Curing Time
Temperature | Catalyst | Rain Resistant | Can be trafficked/overcoated | Full cure |
20°C | 3% | 30 minutes | 45 minutes | 3 hours |
Note: Times are approximate and will be affected by changing ambient conditions.
Higher temperatures or greater proportions of Sikalastic® Rapid Catalyst will reduce reaction times, while lower temperatures and smaller proportions of Catalyst will increase reaction times.
The following table indicates the recommended amount of Sikalastic® Rapid Catalyst required to adjust the curing reaction to the temperature.
Substrate temperature in °C; required amounts of Sikalastic® Rapid Catalyst in % w/w (guide)
-10 | -5 | +3 | 5 | 10 |
- | 6% | 6% | 6% | 4% |
15 | 20 | 25 | 30 | 35 |
2% | 2% | 2% | 2% | 2% |
40 | 45 | 50 | ||
1% | 1% | 1% |
Return-to-service times are provided as a guide only and may vary as a result of conditions. Newly installed balconies should be protected from exposure to heavy traffic by overlaying with an appropriate protective covering. This is particularly critical where early access is needed by other construction related traffic. Sika Liquid Plastics will not be held responsible for damage to balcony surfaces that results from failures to adequately protect newly laid areas.
For further advice, consult Sika Liquid Plastics Technical Customer Services
Consumption
Substrate | Consumption |
Smooth | 0.40 kg/m² |
Fine-sandy | 0.50 kg/m² |
Rough | 0.80 kg/m² |
SUBSTRATE QUALITY
The asphalt must be carefully assessed for bond, moisture and/or air entrapment, grade and surface finish prior to any coating works being carried out. All major cracks should be assessed for movement potential before application of Sikalastic® Rapid system. Treatment will depend on system being used – If not already specified consult Sika Liquid Plastics Technical Services for assistance.
SUBSTRATE PREPARATION
The primer must only be applied to a prepared substrate. Please refer to the Sikalastic® Rapid Method Statement for further information on substrate preparation.
MIXING
Use a twin-paddle stirrer to mix the product.
First stir the tub contents thoroughly.
Then add the Sikalastic® Rapid Catalyst while stirring the resin at the slow speed setting and mix for 2 minutes. Make sure that the product on the base and sides of the container is mixed in.
At product temperatures <10°C the product should be stirred for 5 minutes,as the catalyst will take longer to dissolve.
APPLICATION
Sheepskin roller.
Brush (only for areas not accessible with roller).
Use the sheepskin roller to apply an even film-forming coat of primer. Avoid creating puddles of primer.
Once the coating has cured, apply a second coat to cover any defected (bubbles, areas not fully coated).
CLEANING OF TOOLS
If work is interrupted or when it is completed, clean the tools thoroughly with Sikalastic® Rapid Cleaner within the pot life of the material (approx. 10 minutes). This can be done with a brush. Do not use the tools again until the Cleaner has evaporated fully.
Simply immersing the tools in the Cleaner will not prevent the material hardening.