DOWSIL

DOWSIL™ HM-2600 Silicone Assembly Sealant Neutral 22 KG | Official Distributor

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Technical Product Information

DOWSIL™ HM-2600 Silicone Assembly Sealant Neutral 22 KG

Product Overview

DOWSIL™ HM-2600 Silicone Assembly Sealant Neutral is a 1-part, reactive hot-melt silicone adhesive engineered for high-speed industrial assembly requiring immediate green strength. Applied molten at elevated temperatures, it cools to provide instant holding power within seconds, followed by ambient moisture curing to form a flexible, durable, non-corrosive silicone rubber joint. Unlike traditional thermoplastic hot melts, it cures into an elastomeric silicone that resists high temperatures and weathering. The 22 KG pail is designed for integration with bulk hot-melt dispensing equipment and robotic lines.

Key Features and Benefits

• Immediate Green Strength: Cools rapidly to hold components in place instantly, eliminating mechanical clamping and shortening cycle times.
• Reactive Hot-Melt Technology: Cures with atmospheric moisture into a thermoset silicone rubber for high thermal stability and permanent flexibility.
• Bulk 22 KG Pail: Ideal for continuous automated robotic lines equipped with heated drum unloader systems.
• Non-Corrosive Neutral Cure: Safe for sensitive metals, glass, ceramics, and engineering plastics.
• Unprimed Adhesion: Delivers robust adhesion to challenging substrates without priming.
• Weathering & UV Resistance: Outstanding long-term resistance to UV radiation, moisture, and thermal cycling.

Technical Specifications

• Color: Translucent / Neutral
• Packaging / Net Weight: Pail / 22 KG
• Application Type: Reactive Hot-Melt Silicone (RTV)
• Application Temperature: ~120°C to 140°C (248°F to 284°F)
• Open Time: ~1-3 Minutes
• Tensile Strength: ~3.0 MPa
• Elongation at Break: 1000%
• Hardness (Shore A): ~50
• Service Temperature Range: -45°C to +150°C (-49°F to +302°F)

Applications

• Rapid assembly and sealing of home appliances, oven door glass, and commercial equipment.
• Fast bonding of automotive lighting fixtures, interior/exterior trim, and electronic housings.
• Automated sealing of solar panel (PV) frames and outdoor junction enclosures.
• High-volume industrial bonding requiring immediate green strength and long-term elasticity.

Usage Note: DOWSIL™ HM-2600 must be applied using commercial heated drum unloaders and hot-melt dispensing systems at ~120°C to 140°C. Ensure substrate surfaces are clean, dry, and free from oil or debris. Mate components immediately within the open time after bead application.