Hercules 20205 Clobber Drain Opener – 1 Quart

The Hercules 20205 Clobber is an industrial-strength liquid drain opener formulated with concentrated sulfuric acid for professional use in plumbing, maintenance, and facility operations. Engineered for rapid dissolution of organic obstructions, it provides effective clearing of blockages in cast iron, steel, and plastic piping systems. The formulation delivers controlled exothermic action to disintegrate grease, hair, paper, and other organic matter in commercial and institutional drainage systems.

Details

• Manufacturer: Hercules Chemical Company
• Model Number: 20205
• Product Name: Clobber Drain Opener
• Container Type: Plastic bottle
• Container Size: 1 Quart (946 mL)
• Form: Liquid
• Chemical Base: Concentrated sulfuric acid (H₂SO₄)
• Color: Clear to amber
• Odor: Sharp, acidic
• Density: Approximately 1.8 g/cm³
• pH: < 1 (acidic)
• Flash Point: Not applicable (non-flammable)
• Viscosity: Low, free-flowing liquid
• Reactivity: Reacts exothermically with water and organic materials
• Primary Active Ingredient: Sulfuric acid, technical-grade
• Corrosivity: Highly corrosive to skin, eyes, and reactive metals
• Applications: Professional drain and sewer line maintenance, waste line restoration, and system pre-cleaning before mechanical service
• Material Compatibility: Compatible with cast iron, steel, copper, and PVC piping when used per professional procedure
• Temperature Range: Designed for room temperature application; exothermic reaction generates elevated heat during use
• Compliance: Industrial use only; subject to hazardous material handling regulations

Technical Application

Hercules Clobber Drain Opener is formulated for professional plumbing service where conventional mechanical methods cannot initially restore drainage. The concentrated sulfuric acid composition produces a controlled exothermic reaction that liquefies grease, hair, soap scum, paper residue, and other organic obstructions. The product should be applied by qualified personnel following applicable safety data sheet (SDS) instructions and with appropriate protective equipment. It is not intended for use in systems containing aluminum, chrome-plated, or galvanized components. When properly applied, Clobber restores drain flow by dissolving accumulations within traps, vertical stacks, and horizontal waste lines.

Specifications

• Chemical Base: Sulfuric acid (H₂SO₄)
• Concentration: Technical-grade, high strength
• Form: Liquid
• Density: ~1.8 g/cm³
• pH: < 1
• Flash Point: Non-flammable
• Reaction Type: Exothermic (heat-generating)
• Container Size: 1 Quart
• Container Material: Acid-resistant plastic
• Temperature Behavior: Generates high localized temperature during application
• Pipe Compatibility: Cast iron, steel, PVC, ABS (not for aluminum or galvanized systems)
• Safety Classification: Corrosive, regulated hazardous material
• Handling Requirements: Use chemical-resistant gloves, face shield, and ventilation per OSHA and ANSI Z358.1 standards

Summary

The Hercules 20205 Clobber Drain Opener is a concentrated sulfuric acid-based formulation engineered for industrial and professional drain maintenance. It provides rapid dissolution of organic blockages through controlled exothermic reaction, ensuring effective clearing of lines constructed from cast iron, steel, and PVC. Suitable for professional plumbing and facility operations, it delivers high reactivity, durability, and performance under strict safety-controlled application conditions.