YRLH-1106 is an imine based latent curing agent, commonly used as a latent curing agent for single component moisture cured polyurethane. When exposed to moisture, it can quickly release amine chain extenders and react with isocyanate groups to form polymer materials.
| Property | YRLH-1106 Specification |
|---|---|
| Appearance | Clear amber liquid |
| Density (25 °C) | 1.023 ± 0.02 g/cm³ |
| Viscosity (25 °C) | 70 ± 30 mPa·s |
| Amine Value | 7.7 ± 0.2 mmol/g |
| Functionality | 2 |
| Color (Fe-Co) | ≤ 15 |
| Odor | Special amine scent |
| Solubility | Fully soluble in standard PU raw materials |
YRLH-1106 is a high-performance polyurethane hardener designed as a PU latent hardener for one-component, moisture-cured polyurethane systems. Based on an imine-curing mechanism, this PU hardener remains inactive at room temperature for exceptional storage stability and quickly triggers crosslinking when exposed to ambient moisture. The result is uniform, bubble-free polyurethane with outstanding mechanical integrity.
Typical Properties：
Model | Appearance | Colour （Fe-Co） | Density g/cm3 (25℃) | Viscosity mPa.s (25℃) | Amine Value (mmol/g) | Functionality | Odor |
YRLH-1106 | Amber clear liquid | ≤15 | 1.023±0.02 | 70 ± 30 | 7.7±0.2 | 2 | With special odor |
Solubility：Easily soluble in various of general polyurethane raw material.
Features & Advantage:
YRLH-1106 is an imine based latent curing agent, commonly used as a latent curing agent for single component moisture cured polyurethane. When exposed to moisture, it can quickly release amine chain extenders and react with isocyanate groups to form polymer materials, with the following characteristics:
Fundamentally solve the common defects such as bulges and bubbles in moisture cured polyurethane: As a PU latent hardener, YRLH-1106 basically avoids CO2 bubbles caused by the reaction between moisture and -NCO during the solidification process.
Excellent storage stability. Under anhydrous sealing conditions, the storage stability with isocyanate components hardly increases viscosity.
Significantly improve the curing speed of moisture cured polyurethane. Generally, compared to traditional wet curing, the surface and internal drying is faster, and when combined with WCAT series catalysts and auxiliary catalysts, faster surface and internal sodify performance can be achieved.
Improve mechanical properties. YRLH-1106 can be used to produce dense and bubble free polyurethane, avoiding the decrease in mechanical properties caused by bubbles. Delivers higher tensile strength and elongation by producing defect-free polyurethane networks, making it an ideal polyurethane hardener for demanding applications.
Less addition, lower cost. Compared to general latent curing agents, the dosage of YRLH-1106 is lower.
Applications：
Used as a latent curing agent for single component moisture cured polyurethane, widely used in various coatings (waterproof coatings, etc.), single component polyurea, adhesive glue, sealant, etc;
Used for two-component polyurethane as a dehydrating agent in construction processes such as pouring, spraying, and scraping, which can avoid problems such as bubbles, bulges, pinholes, peeling, and matte caused by moisture.
User's Guide:
Usage: It is recommended to add and stir evenly in the later stage of production (i.e. after the pre polymerization reaction is completed).
Suggested addition amount: The general addition amount is 0.2-1%, and the addition amount can be calculated based on NCO%. Generally, the more added within the theoretical amount, the faster the curing.
It is recommended to use it together with the excellent moisture curing catalyst WCAT series and auxiliary catalyst WCAT-WQ01, which can significantly improve the surface and internal solidification of the moisture curing polyurethane.
It is necessary to avoid placing it with can mouth open, and to isolate moisture during storage; It is recommended to fill the can with dry nitrogen gas for sealing protection after each opening.
Handling & Storage: Product should be stored in a cool, dry environment away from sunlight, excessive heat and rain.
Package: 25kg/200kg in HDPE drum
Shelf Life: The unopened shelf life is 12 months from the date of manufacture. After expiration, it can still be used normally if passing the test. Please pay attention to sealed storage.
Proven Expertise: Over a decade of PU additive innovation with multiple patents.
Global Reach: Serving customers in 80+ countries with reliable logistics.
Quality Assurance: Rigorous QC ensures ≥ 99.8% consistency in every batch.
Technical Support: 24/7 access to formulation specialists and sample trials.
Tailored Solutions: Custom dosing, compatibility testing, and on-site support available.
Reach out today for free samples, detailed technical datasheets, and a personalized curing plan!
