Dow Corning Quality Silicone Sealant Free Samples A Comprehensive Overview

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Introduction

Free samples of silicone sealant products referencing Dow Corning quality are available through certain manufacturers. These samples are intended for potential customers to evaluate the product before making purchasing decisions. The silicone sealants are described as multi-purpose construction materials with specific technical properties and applications.

Product Information

Dow Corning Neutral Plus Silicone Sealant is presented as a cost-effective, multi-purpose, neutral cure silicone sealant offering long-term durability in various applications. The product is formulated for general sealing, glazing, weatherproofing, and professional trade applications.

Key Features

The silicone sealants offered with free samples include the following features:

• One-component adhesive/sealant system
• Cures at room temperature when exposed to moisture in the air
• Easy to use compared to non-silicone materials
• Cures to a tough, flexible rubber
• Good/excellent unprimed adhesion to most common construction substrates
• Outstanding resistance to ozone, UV, moisture, and temperature extremes
• Stable and flexible performance from -40ºC to +150ºC

Technical Specifications

The products meet various technical standards as demonstrated by test results:

• Appearance: No grain, no agglomerations, no skinning, no bubbles
• Density: 0.940 g/cm³ (within ±0.1 of standard)
• Droop degree: 0 mm (uprightness) with no damage (level)
• Skinning time: 0.2 hours (standard ≤3 hours)
• Elastic recovery ratio: 98% (standard ≥80%)
• Extrusion ability: 105 ml/min (standard ≥80 ml/min)
• Tensile modulus: 0.36 MPa at 23ºC (standard ≤0.4 MPa)
• Cold-hot adhesive: No damage
• Under water adhesive: No damage
• UV radiation: No damage
• Definite elongation: No damage

After curing for 7 days at 25ºC and 50% relative humidity, the products demonstrate:

• Hardness: Shore A 25 (semi-transparent) and 38 (other colors)
• Maximum tensile strength: 1.2 MPa (semi-transparent) and 1.0 MPa (other colors)
• Elongation at break: 400% (semi-transparent) and 350% (other colors)
• Temperature stability: -40ºC to +150ºC for both variants

Application and Limitations

The silicone sealants are suitable for construction and woodworking applications. However, the products have specific limitations:

• Not recommended for structural glazing
• Not suitable for materials where the cure by-product (acetic acid vapor) may cause corrosion or discoloration, including galvanized iron, copper, brass, zinc-coated steel, concrete, cement, brick, limestone, marble, and similar highly porous stone finishes
• Not recommended for continuous water immersion applications

Free Sample Program

Free samples of the silicone sealant products are available from the manufacturers, though customers are required to bear the freight costs. The sample request process is straightforward, with a clear option to request samples on the manufacturer's websites.

Minimum Order Requirements

For those interested in purchasing after evaluating samples, the manufacturers specify a minimum order quantity (MOQ) of 100 cartons, with 16 sausages per carton.

Delivery and Payment Terms

Once an order is placed, delivery is typically completed within 15 days after the receipt of deposit and confirmed designs. The payment terms are structured as 30% T/T deposit and 70% balance, or L/C at sight.

Conclusion

Free samples of silicone sealant products referencing Dow Corning quality are available through certain manufacturers, though customers are responsible for shipping costs. These samples provide an opportunity to evaluate a multi-purpose silicone sealant with specific technical properties suitable for construction and woodworking applications. The products demonstrate good adhesion, flexibility, and resistance to environmental factors while having specific limitations regarding structural applications and certain materials. For those interested in larger quantities, the manufacturers have established MOQ requirements and clear delivery and payment terms.

Sources

1. China OEM Dow Corning 791 Silicone Sealant with Free Sample
2. China Free Samples Silicone Sealant Dow Corning Quality