Description
Price per 17.5 L
Sikalastic-391 N is a 100 % solids, polyurethane binder used to protect Sikalastic®-390 Membrane and to provide durable anti-skid surface properties by broadcasting oven-dried, silica sand into the binder.
- New and improved formula forming a hard, yet flexible film bringing an improved aggregate retention and better durability.
- Easy to apply for an economical application.
- Higher abrasion resistance for an improved service life.
Material Use:
Sikalastic®-391 N is a two-component, elastomeric, 100% solids polyurethane-based wear course. It is designed to serve as a protective binder over the Sikalastic®-390 Membrane, enhancing surface durability and anti-skid properties by incorporating silica sand.
System Components:
Sikalastic®-391 N is part of a traffic coating system that includes:
- Base Membrane: Sikalastic®-390
- Wear Course: Sikalastic®-391 N
- Primer (when required): Sikalastic® Recoat Primer
- Top Coat (if needed): To be applied over the wear course after a minimum of 8 hours cure time
- Aggregate: Oven-dried #24 mesh silica sand
Applications:
- Multi-storey parking decks and ramps
- Interior footbridges and walkways
- Interior stadium and arena surfaces
- Not recommended for exterior applications (Sikalastic®-394 is preferred for such use)
Application Details:
- Mix Ratio: Component A to B = 2.5 : 1 by volume
- Application Thickness: 18 – 25 mils wet film thickness
- Coverage: 65 – 90 ft²/US gallon depending on surface profile
- Sand Broadcast Rate: 0.7 kg/m² (14 lb/100 ft²)
- Application Method: Notched squeegee, followed by sand broadcasting and backrolling
- Pot Life: 35 – 40 minutes at 23 °C (73 °F)
- Recoat Time: 8 hours at 23 °C; varies with temperature
- Walk-On Time: 16 hours at 23 °C
- Light Traffic: 24 hours at 23 °C
- Full Cure: 7 days at 23 °C
Special Notes:
- Minimum/maximum ambient and substrate temperature: 10 °C to 32 °C (50 °F to 90 °F)
- Maximum relative humidity during application and cure: 85%
- Substrate temperature must be at least 3 °C (5.5 °F) above dew point
- Not UV stable; recommended only for interior applications
- Surface must be dry and free of frost, dampness, or water
- Sikalastic®-391 N is solvent-free, improving safety and reducing odor
- Compliance: CAN/CSA-S413-14 (ASTM C957) for parking structures
- Tools must be cleaned immediately with Sika® Urethane Cleaner and Thinner
https://can.sika.com/en/construction/floors-walls/specialty-flooring/waterproofing-flexiblemembrane/sikalastic-391-n.html
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