- ASTM C920 Certified Acid Silicone Sealant - 30min Quick Cure for PVC Wood Glass - GP-717
-
-
This high-performance acid silicone sealant offers rapid curing (30 minutes surface dry, 24 hours full cure) and strong adhesion, certified to ASTM C920 standards. It's ideal for bonding PVC, wood, glass, metal, and ceramic, making it perfect for construction, home improvement, and industrial sealing needs with excellent weather resistance.
| Parameter |
Test Method |
Value |
Remark |
| Surface Dry Time |
ASTM C679 |
30 minutes |
At 25°C, 50% RH |
| Full Cure Time |
ASTM C920 |
24 hours |
For ≤6mm thickness |
| Tensile Strength |
ASTM D412 |
≥1.5 MPa |
Post-cure |
| Elongation at Break |
ASTM D412 |
≥400% |
Superior flexibility |
| Hardness |
ASTM C661 |
Shore A 20-30 |
After curing |
| Extrusion Rate |
ASTM C1183 |
≥300 ml/min |
Smooth application |
| Temperature Resistance |
ASTM C793 |
-40°C to 150°C |
Reliable in harsh conditions |
| VOC Content |
ASTM D2369 |
≤3% |
Eco-friendly, low emissions |
| UV Resistance |
ASTM G154 |
Excellent |
Suitable for outdoor use |
| Adhesion Strength |
ASTM C794 |
High |
Bonds diverse materials |
| Density |
ASTM D792 |
1.02 g/cm³ |
Uniform consistency |
| Salt Spray Resistance |
ASTM B117 |
Pass (500 hours) |
Corrosion-resistant |
(Core Competitive Advantages)
Rapid curing (30min surface dry), ASTM C920 certified, versatile bonding (PVC, wood, glass), superior weather resistance, and low VOC (≤3%).
(Raw Material Warehouse)
Our raw material warehouse adheres to international standards, storing polydimethylsiloxane, plasticizers, crosslinkers, fillers, catalysts, tackifiers, pigments, and additives from top global chemical suppliers, ensuring high purity and stability. Fully enclosed with light-proof, moisture-resistant, and temperature-controlled systems, it isolates materials from external influences, safeguarding quality from the source. Each batch undergoes rigorous performance testing and data validation by our expert engineers upon arrival, establishing the first line of quality control and a solid foundation for premium silicone sealant production.
(Automated Production System)
We've adopted an automated raw material dispensing system with precise weighing and ratio control for consistent formulations. The pre-mixing system uses sealed vacuum stirring technology to eliminate bubbles and enhance uniformity, while high-speed static screw mixing equipment optimizes dehydration and degassing, ensuring a stable sealant structure.
(Cartridge Manufacturing Workshop)
Our dedicated cartridge production workshop uses high-quality polyethylene (PE) materials for durability and leak-proof performance, with a daily capacity of 10,000 units. Customizable sizes (280ml, 300ml, 480ml) are adjustable to client specifications, offering tailored solutions.
(Customized Packaging Design)
We offer OEM clients bespoke packaging designs with rendered visuals to enhance brand identity. Printing is conducted in a specialized cartridge workshop, with meticulous layout and color verification for flawless, consistent results.
(Filling Process and Quality Control)
Our team fills sealants by grade and color using precise machinery for accuracy. Every 50 units undergo dual weight and volume checks to ensure filling consistency.
(Standardized Finished Product Storage)
Before storage, all products are inspected for quantity, specifications, and packaging integrity. Each unit is labeled with quantity, specs, color, and client name, ensuring logistics accuracy and efficiency.
(Laboratory - Comprehensive Testing)
Each batch undergoes comprehensive testing by engineers to meet industry-leading standards. Tests include: Surface Dry Time, Seal Integrity, Tensile Strength, Elongation at Break, Extrusion Performance, Compatibility Testing, Cure Speed, Weather Resistance, Adhesion Strength, High-Temperature Resistance, Low-Temperature Flexibility, Gloss and Smoothness, Salt Spray Test, UV Resistance, and Volatile Organic Compound (VOC) Content.
(Workers take real photos of the construction site)
(EXHIBITIONS)
(CARGO TRANSPORTATION)
Manufacturing Excellence
- 150,000 MT/Month Capacity: 10 automated production lines with PLC control systems
- Quality Assurance: Raw materials sourced from DC 100% batch testing
- Global Compliance: 12+ international certifications including CE, REACH, JIS A 5758
- Customization Service: Support OEM formulations, color matching (Pantone/RAL)
- Logistics Network: 98% on-time delivery rate with ISO tank/container loading options
With 16 years of expertise in sealing solutions, we've successfully supplied projects in 38 countries including Burj Khalifa curtain wall systems.
[FAQ]
Q1: Can you provide private customization (OEM)? What is the minimum order quantity?
A1:
OEM support: Provide full-range customization services, including:
1. Packaging customization: trademark printing, outer box design (MOQ 12,000 pieces)
2. Formula adjustment: color, curing speed, viscosity adjustment (MOQ 2 tons)
3. Certification agency: Assist in passing UL/CE/GB certification (cycle 4-8 weeks)
4. Standard order: No minimum order quantity, support mixed batch (black/white/gray/transparent can be freely combined)
Q2: Quotation time limit and price protection period? Is there a discount for large quantities?
A2:
1. Quotation validity: Formal quotation will be provided within 24 hours for routine demand (including EXW/FOB/CIF terms)
2. Price protection: Quotation validity period is 7 days, and orders over 48,000 pieces will enjoy tiered discounts (up to 10% OFF)
3. Annual agreement: Signing an annual procurement framework agreement can lock in the risk of raw material price fluctuations
Q3: Sample policy? Can the sample fee be deducted after placing an order?
A3:
1. Free samples: 1-3 free samples (model HW-718) are provided, and only the international express fee needs to be paid
2. Fee refund: Sample fee can be 100% deducted in the first order (sample receipt record must be provided)
3. Customized samples: Special color/packaging samples are subject to tooling fees (calculated according to actual cost)
Q4: Does HW-718 meet European and American building sealant standards?
A4:
International Compliance:
1.EU: Certified by EN 15651 (Building Joint Sealant), VOC≤50g/L
2.USA: Meets ASTM C920 Class 25, UL fire rating [optional]
3.China: GB 16776 Structural Sealant Standard
Q5: How do I ensure that the sealant is compatible with my substrate?
A5:
Three-step confirmation method:
1.Substrate type: Provide the material name (such as powder-coated aluminum, tempered glass)
2.Surface treatment: Inform the type of cleaning agent (silicone-containing cleaning agents are prohibited)
3.Testing service: Free delivery of compatibility test kit (including 5 common substrate test pieces)
Q6: How to verify product quality stability?
A6:
Quality control visualization:
1. Raw material traceability: Dow Chemical (DOWSIL) silicone raw material batches can be queried
2. Production traceability: Laser coding of each product (production time/production line/quality inspector)
3. Third-party monitoring: Monthly random inspection report announcement
Q7: Delivery cycle and emergency order expedited options?
A7:
Standard delivery:
1. Factory warehouse spot: delivery within 72 hours (support DDP)
2. Customized order: 20 working days (starting from the confirmation of the design draft)
3. Expedited channel: Pay 10% of the order amount to prioritize production (delivery in 3 days at the fastest)
Q8: How to get technical support in case of construction problems?
A8:
Three-level support system:
1. Online diagnosis: Send the construction video to [email protected] and get a reply within 5 hours
2. Online video guidance: Engineers in the Asia-Pacific region will reply within 8 hours (12 hours in Europe/America)
3. Compensation commitment: For orders confirmed as product problems, free replenishment + bearing the rework costs
Q9: Can you provide technical documents in localized languages?
A9:
1. Multi-language support: Provide English/French/Spanish/Russian/Arabic versions of MSDS and construction guides
2. Professional sales team: Request the technical parameter table in the language corresponding to the local country from the sales staff
Audited Supplier 
){kind=link}