Dowsil 995 High-Strength Neutral Cure Silicone Sealant for Weather-Resistant Structural Glazing
Price:
75
MOQ:
1
Delivery Time:
3-5
Brand:
Dowsil
Product Description
Dowsil 995 Structural Silicone Sealant
A high-performance neutral cure sealant specifically designed for building curtain wall assembly applications.
Product Overview
Dowsil 995 is a one-component, high-strength, neutrally curing (oxime) silicone structural sealant engineered for structural glazing applications. This sealant offers excellent adhesion to most building materials without requiring a primer and complies with Chinese national standard GB16776-2025, holding China Green Building Material Product Certification (Three-Star).
Performance Characteristics
Upon exposure to atmospheric moisture, Dowsil 995 cures to form a durable, flexible silicone rubber elastomer. It provides exceptional resistance to weathering elements including sunlight, rain, snow, and extreme temperatures ranging from -40°C to +150°C, ensuring long-term performance and reliability in building envelopes.
Technical Specifications
| Property | Test Standard | Value | Unit |
|---|---|---|---|
| Tack-Free Time (50% RH, 23°C) | CTM 0095 | 46 | minutes |
| Cure Time (50% RH, 23°C) | ASTM C679 | 7-14 | days |
| Full Bond Time | Internal | 14-21 | days |
| Sag | ASTM D2202 | 0 | mm |
| Application Time (Skin-over time) | Internal | ~25 | minutes |
| After Cure (7 days @ 23°C, 50% RH) | |||
| Tensile Strength | ASTM D412 | 307 (2.12) | psi (MPa) |
| Elongation at Break | ASTM D412 | 586 | % |
| Tear Strength (Die B) | ASTM D624 | 61.1 (10.7) | ppi (kN/m) |
| Peel Strength | ASTM C794 | 49.5 | ppi |
| After Cure (21 days @ 23°C, 50% RH) | |||
| Hardness, Shore A | GB/T 13477 | 38 | - |
| Tensile Strength | GB/T 13477 | 186 (1.28) | psi (MPa) |
| Elongation at Break | GB/T 13477 | 335 | % |
| Movement Capability | ASTM C719 | ±50 | % |
Key Features
- Outstanding mechanical properties after full cure
- High tensile strength and elongation capacity
- Withstands structural movements and stresses
- Neutral cure mechanism ensures compatibility with sensitive materials
- Zero sag in vertical joints for easier application
- Comprehensive technical support including drawing review and adhesion testing
Application Scenarios
Dowsil 995 is primarily used in structural sealant glazing applications for curtain walls, including unitized systems, and structural glazing for vision glass and spandrel panels. It is suitable for bonding glass, metal, and stone panels in high-rise buildings and other structures requiring durable, weather-resistant structural bonds.
About Our Company
Shenzhen Huazhisheng New Material Technology Co., Ltd. is a professional industrial adhesives and sealants supplier based in China since 2018, serving global markets including Mainland China (60%), Southeast Asia (20%), North America (10%), and Europe (10%).
Quality Assurance & Services
- Mandatory pre-production samples approval
- Final inspection by QC team before shipment
- International certifications: SGS, UL, FDA, RoHS, REACH
- Reliable supply of authentic products from top manufacturers
- Expert technical guidance for product selection
- Global compliance certifications meeting target market standards
- Customized solutions and professional support
- Delivery options: EXW/FOB/CIF
- Payment methods: USD/EUR/CNY/HKD via T/T, L/C
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Get in Touch
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Company
Shenzhen Huazhisheng New Material Technology Co., Ltd.
Location
101, No. 130 Fengping Road, Shitouling Industrial Zone, Wulian Village, Fenggang Town, Dongguan City, Guangdong Province, China
Contact Person
ouyang