Customization: | Available |
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Adhesion Strength: | High Strength |
Bonding Material: | Aluminum |
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**HC-995 High-Performance Silicone Structural Sealant**
**Product Overview**
The HC-995 is a premium, single-component neutral ketoxime-cured silicone structural sealant designed to meet the rigorous demands of modern architectural applications. With medium modulus and exceptional durability, it offers superior UV, acid, and alkali resistance. This high-performance sealant seamlessly bonds glass and metal components into unified assemblies, making it ideal for fully hidden or semi-hidden frame curtain wall designs.
### **Key Features**
- **Neutral Ketoxime Cure:** Non-corrosive to sensitive substrates, ensuring safe and effective application.
- **Structural Integration:** Creates a durable bond between glass and metal components, supporting advanced architectural designs.
- **Exceptional Durability:** Resistant to UV rays, acids, and alkalis for long-lasting performance.
- **Weatherproof Excellence:** Maintains structural integrity and sealing performance in challenging environments.
### **Applicable Materials**
The HC-995 is compatible with:
- Glass
- Ceramics and pottery
- Fiberglass
- Galvanized metal surfaces
- Most plastic panels
- Non-oily wood
- Anodized or painted aluminum profiles
### **Usage Restrictions**
To ensure optimal performance, avoid the following scenarios:
- **High Temperatures:** Not suitable for substrates with surface temperatures exceeding 50°C during application.
- **Curing Environment:** Requires air exposure for proper curing; unsuitable for fully enclosed or air-isolated environments.
### **Shelf Life**
The HC-995 retains optimal performance for up to **12 months** when stored under recommended conditions.
**Why Choose HC-995?**
The HC-995 combines advanced structural bonding capabilities with superior weather resistance, making it the ideal solution for demanding glass-to-metal assembly projects and modern curtain wall designs. Trust HC-995 for reliable and long-lasting results in professional architectural applications.
PERFORMANCE DATA | |||
Test Parameter | Unit | Result Translucent Pigmented | |
As Supplied Tested at 23ºC and 50% RH | |||
Specific Gravity | g/ml | 0.98±0.02 | 1.32±0.02 |
Flow (sag or slump) | mm | 0 | 0 |
Extrusion Rate | ml/minute | 180 | 123 |
Skin Time | minute | 5~10 | ≤60 |
Tack-free Time | hour | ≤1.0 | ≤5 |
Curing time (5mm) | hour | ≤12 | ≤16 |
As Cured-after 21 days at 23ºC and 50% RH | |||
Durometer Hardness, Shore A | Points | 28 | 42 |
Elastic Recovery | % | 98 | 98 |
Movement Capability | % | ±25 | ±40 |
Tensile/Modulus at 50% Elongation | % | 0.27 | 0.52 |
Tensile/Modulus at 100% Elongation | % | 0.35 | 0.68 |
Ultimate Tensile Strength | Mpa | 0.37 | 0.84 |
Ultimate Elongation at Break | % | 220 | 420 |