Achieving a truly durable, flexible, and long-lasting seal is paramount for the integrity and energy efficiency of any structure. Asmaco All-Purpose Premium 100% Silicone (Neutral Cure), supplied by A1A Wholesale Supply, is a high-performance sealant specifically designed to meet the demands of the most challenging interior and exterior applications.
This premium silicone offers 100% weatherproof protection and features a neutral cure formulation, which means it has a low odor and is less corrosive to sensitive materials compared to acetic cure silicones. It provides an impressive 50% joint movement capability, offering 100% greater flexibility than Class 25 sealants. This ensures that the sealant resists shrinking, cracking, or breaking down, maintaining its integrity even with significant structural movement.
Built to withstand harsh environmental conditions, Asmaco All-Purpose Premium 100% Silicone is UV resistant, ensuring long-lasting durability and reliability without degrading from sun exposure. It comes with a Lifetime Mold-Free Protection warranty, providing unparalleled assurance against mold and mildew growth. With maximum adhesion to a wide variety of common substrates and a non-staining formula, it’s ideal for glazing, windows, doors, siding, trim, showers, tubs, sinks, countertops, backsplashes, and all general building and construction joints. For contractors, this means a superior, versatile sealant that delivers exceptional long-term performance and peace of mind.
Key Features and Benefits for Contractors:
- 100% Silicone (Neutral Cure): High-performance, low-odor, and less corrosive formulation.
- 100% Weatherproof & Airtight: Provides a complete barrier against water and air intrusion.
- Lifetime Mold-Free Protection: Unmatched warranty against mold and mildew growth.
- Maximum Flexibility (50% Joint Movement): Offers 100% greater flexibility than Class 25 sealants, resisting cracking and shrinking.
- Maximum Adhesion: Ensures a strong, reliable bond to a wide range of substrates.
- UV Resistant: Maintains integrity and appearance under prolonged sun exposure.
- Non-Staining: Won’t stain most common substrates.
- Meets Industry Standards: Complies with ASTM C-920, Class 50 (Type S, Grade NS, Class 50, Use NT, G, A, and O); ASTM C-719; and ASTM C-1184 (for Structural Silicone Sealants).
- Versatile Applications: Suitable for glazing, windows, doors, siding, trim, kitchen & bath areas, countertops, and general building & construction joints.
Product Specifications:
- Type: 100% Silicone, Neutral Cure
- Joint Movement Capability: 50%
- Mold Protection: Lifetime Mold-Free
- Weather Resistance: 100% Weatherproof
- UV Resistance: Yes
- Paintable: Non-Paintable
- Odor: Low Odor
- Compliance: Meets ASTM C-920, Class 50 (Type S, Grade NS, Class 50, Use NT, G, A, and O); ASTM C-719; ASTM C-1184 (for Structural Silicone Sealants)





