INGADA™ SR-20 Weatherproof Silicone Sealant – Exterior Construction Grade
Practical Multi-Purpose Caulk for Windows, Doors, and General Construction
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The Problem: Cheap sealants often contain white oil that leaks out, causing ugly stains on walls and frames.
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The SR-20 Solution: “Reliability Without the Premium.” Get a clean, professional finish that won’t stain your masonry or wood, proving that “economy” doesn’t have to mean “low quality.”
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Cost-Effective Solution: Delivers reliable professional performance for budget-conscious large-scale maintenance and repair projects.
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No-White-Oil Formula: Advanced anti-staining technology prevents oil migration, keeping your surfaces clean and maintenance-free.
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Dependable Movement: Provides a ±20% movement capacity, ideal for standard joints in residential window and door installations.
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User-Friendly Application: Designed for smooth extrusion and easy tooling, reducing labor time for both pros and DIYers.
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All-Weather Seal: Creates a durable water-tight and air-tight barrier that remains flexible across typical seasonal temperature shifts.
Technical Comparison Table
| Feature | Typical Value |
| Movement Class |
Class 20 (±20%) |
| Composition |
White-Oil Free (Non-staining) |
| Tack-Free Time |
1–2 Hours |
| Full Cure |
~24 Hours |
Q:What is the movement capacity of SR-20 for exterior joints?
A：SR-20 offers a ±20% movement capacity (Class 20), making it ideal for joints with low to moderate expansion and contraction requirements in general construction.
Q:Does this sealant cause staining on porous substrates?
A：No. SR-20 features a white-oil-free formula, which prevents oil migration and staining, ensuring a clean finish for both interior and exterior applications.
Q:Which international standards does SR-20 comply with?
A：It meets the requirements of ASTM C920 (Type S, Grade NS, Class 20) and is CE Certified and SGS Tested, providing reliable performance for budget-conscious professional projects.
Q:Is it suitable for window and door installations?
A：Yes, it is specifically designed for residential window and door caulking, as well as general maintenance and non-structural joint sealing.
Q:What is the typical cure time for SR-20?
A：The sealant becomes touch-dry within 1–2 hours and reaches a full cure in approximately 24 hours under normal environmental conditions.
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ASTM C920 Class 20
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GB/T 14683
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CE Certified & SGS Tested
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