Q: Can I use Plastabond for external render applications in high-humidity areas?
A: Yes. Plastabond improves both adhesion and water resistance, making it ideal for external renders, even in humid Australian coastal environments. Ensure the bonding coat remains tacky before application for optimal results.
Q: What dilution ratio should I use for patching concrete?
A: For patching mortars, a 1:1 or 1:2 Plastabond-to-water ratio is typically ideal, depending on the flexibility and adhesion required. Always test on a small batch for best performance match.
Q: Is Plastabond suitable for bonding over polystyrene panels?
A: No. For polystyrene substrates, an acrylic-based bonding agent is recommended. Plastabond is optimised for cementitious and porous substrates.
Q: How soon can I apply screed or concrete after bonding coat application?
A: Apply the screed or concrete while the bonding coat is still tacky to ensure proper adhesion. Do not allow the bonding coat to dry completely before placing the overlay.
Application / Use Case | Key Benefit | Primary Trades |
---|---|---|
Concrete repair patching | Improves bond strength and reduces cracking | Builders, Concreters |
Floor screeds | Enhances flexibility and abrasion resistance | Tilers, Flooring Contractors |
Render systems | Better cohesion to aged or smooth substrates | Plasterers, Builders |
Slurry bonding coats | Effective interface bonding between layers | General Trades, Waterproofers |
The Engineering Challenge: Traditional screeds often delaminate over smooth or dusty substrates.
The System-Based Solution with Plastabond: Apply a Plastabond bonding coat to ensure chemical and mechanical key. Screeds adhere securely even on low-absorption surfaces.
Best Practice Note: Pour screed while bonding coat is still tacky for optimum bond development.