Sikaflex-Construction Plus
High Performance Elastic Joint Sealant for Building Construction
Authorized Project Distributor — Sika India | Space Arc Engineering, Ghaziabad
Product Overview
Sikaflex-Construction Plus is a one-component, moisture-curing, polyurethane elastic joint sealant formulated for high-specification joint sealing in facade and construction applications. It accommodates significant joint movement (up to +25% / -25% or more) while maintaining watertight seal integrity throughout its service life. Sikaflex-Construction Plus adheres strongly to concrete, masonry, natural stone, metal, coated glass, and many other building substrates with appropriate Sika Primer systems, and cures to a tough, durable, paintable elastomer. In India, where building facades experience significant temperature differential movement (day/night and seasonal), a flexible polyurethane sealant like Sikaflex-Construction Plus is essential for ensuring long-term weatherproofing. Space Arc Engineering distributes Sikaflex-Construction Plus for commercial building, infrastructure, and residential facade joint sealing projects across Delhi NCR and UP.
Applications
- Facade expansion and movement joints in commercial buildings
- Window and door perimeter sealing
- Concrete panel joints in precast building facades
- Curtain wall and cladding system joint sealing
- Construction joints in concrete frame buildings
- Perimeter sealing of architectural metalwork and glazing
Key Advantages
- High movement accommodation — up to +25/-25% joint movement
- One-component — no mixing, moisture-cures on exposure to air
- Excellent adhesion to concrete, metal, glass, and masonry
- UV and weathering resistant for facade exposure
- Paintable after cure for aesthetic facade finishes
- Chemical resistance to cleaning products and dilute chemicals
Technical Data
| Type | One-component polyurethane elastic sealant |
| Movement Accommodation | Up to +25/-25% of joint width |
| Shore A Hardness | ~35–40 (soft and flexible) |
| Tack-Free Time | ~1–3 hours at 25°C |
| Full Cure | ~7 days at 25°C |
| Pack Size | 300 mL cartridges, 600 mL sausages, 20 L pails |
Get a Quote
📞 +91 9999155255
📧 info@space-arc.com
🏢 Space Arc Engineering, Sahibabad, Ghaziabad
Frequently Asked Questions
What primer is required for Sikaflex-Construction Plus on concrete?
On concrete and masonry, Sika Primer-3N or Sika Aktivator-205 is typically recommended before applying Sikaflex-Construction Plus to ensure maximum adhesion. On metal substrates, Sika Primer-207 or surface preparation per the system data sheet is required. Contact Space Arc Engineering for the correct primer for your substrate.
Can Sikaflex-Construction Plus be painted over?
Yes. Once fully cured (typically 7 days), Sikaflex-Construction Plus can be painted over with most architectural paint systems. The paint must be compatible with the cured polyurethane — test before full application. Some paint formulations (particularly solvent-based paints) may affect the sealant surface.
What is the minimum joint width for Sikaflex-Construction Plus?
The minimum recommended joint width is 5 mm, and ideally joints should be 10–25 mm wide for typical facade applications. Joint depth should be approximately 50–75% of the joint width, with a bond-breaker tape at the back of the joint to prevent three-sided adhesion that would restrict movement accommodation.
Source Sikaflex-Construction Plus for Your Project
Space Arc Engineering is an Authorized Project Distributor for Sika India serving Delhi NCR, Ghaziabad, Noida and Uttar Pradesh.