Aldirez®‑211
Fast cure. Better finish. Reliable performance in humidity.
A moisture‑activated, blocked diamine crosslinker that improves cure speed, surface finish and durability in polyurethane and polyaspartic systems - without changing processes.
The Challenge
Formulators working with moisture‑curing and ambient‑cure systems often face:
Slow or inconsistent cure in variable humidity
Trade‑offs between pot life and reactivity
Surface defects from uncontrolled moisture reactions
Limits on early strength and return‑to‑service times
The Solution
Aldirez®‑211 is a low‑viscosity, blocked cycloaliphatic diamine that remains stable in storage and activates only when exposed to moisture at the point of cure. This controlled activation enables fast urea crosslinking, delivering improved surface finish, enhanced durability and stronger early performance.
All of this is achieved without disrupting existing production workflows or requiring changes to equipment or processing conditions.
Key Benefits
Fast, Controlled Moisture Cure
- Enables earlier handling and fast return to service
Stronger, More Durable
Systems
- Urea crosslinks increase toughness and abrasion resistance
- Improved chemical and environmental resistance
Improved Finish & Defect Control
- Reduces moisture‑related bubbling and blistering
- More consistent film formation under ambient conditions
Drop‑In Compatibility & Process Stability
- Remains stable in storage and during application
- Works with existing formulations, equipment and processing conditions
- No changes to workflows or production processes required
How It Works
- In storage: Amine functionality is blocked, preventing premature reaction
- On application: Moisture triggers de‑blocking, releasing the active diamine
- Result: Rapid reaction with isocyanates, fast urea formation, tougher networks and improved finish
At‑a‑Glance Technical Highlights
Function: Moisture‑activated diamine crosslinker
Form: Low‑viscosity liquid
Activation: On‑demand, moisture‑triggered
Benefit: Fast cure, better finish, improved durability
Typical Properties
Appearance: Clear liquid | Viscosity: 40 - 70 cP (@ 20°C)
Density: 0.865-0.875 g/cm³ | Active Content: 141 g/eq
Typical Applications
Industrial & protective coatings
Flooring systems
Automotive coatings & components
Marine and infrastructure coatings
