Hydronic System Cleaner: Restore Efficiency and Extend Lifespan
Hydronic System Cleaner is a powerful, concentrated formula designed to effectively clean and maintain all types of closed-loop systems, including ground source geothermal and solar heating systems. HSC is formulated to emulsify oils, grease, lubricants, corrosion byproducts and other debris found inside new and old systems alike.
HSC is a valuable tool for maintaining the optimal performance and longevity of your hydronic system. Its powerful cleaning action, safety, and versatility make it an ideal choice for professionals maintaining boilers, heat exchangers, hot and chilled water systems, or process cooling systems.
Key Features and Benefits:
- Removes Contaminants: Quickly removes scale, organic material, flux residue, cutting oils, dirt, and other contaminants.
- Restores Efficiency: Recovers lost operating efficiency, reducing energy consumption and costs.
- Safe for All Metals: Safe for use with aluminum, iron, copper, brass, and stainless steel.
- Protects System Components: Helps prevent damage to system components.
- Easy to Use: Simple and effective application process.
Part Number Size
- HSC-1 1 Gal 4/cs
- HSC-5 5 Gal
- HSC-55 55 Gal
Directions & Cleaning;
This product must be used in accordance with the following directions and by professionals only.
- Preparation & Dosing
- Open all zone valves and thoroughly flush the system with water until it appears clean. Add the product at a rate of **1 gallon per 250 gallons** of system water.
- Cleaning – Circulation Time
- New Installations: Circulate for 4 to 6 hours. Vent the system from the highest point to avoid gas binding.
- Existing Non-Aluminum Boilers: Circulate for 1-3 days or until water is visibly fouled.
- Existing Aluminum Boilers: Limit cleaning time to 8 hours unless the boiler is bypassed.
- Post Cleaning & Flushing
- After cleaning, flush the system with water until it runs clear and the pH is the same as the makeup water.
*NOTE: Heating the system to operating temperature will improve results. After cleaning, add Arctic Protection Glycol or NSF Arctic Protection HT Glycol, or Glycol Inhibitor dependent on the application criteria for long term system protection.
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SDS
⚠️ HYDRONIC SYSTEM CLEANER SDS – DOWNLOAD
1. Identification & Supplier Details
| Product Name |
Hydronic System Cleaner [cite: 393, 397] |
| Product Number |
HSC-1, HSC-5, HSC-55 [cite: 397] |
| Recommended Use |
Hydronic system cleaner [cite: 398] |
| Supplier |
Vapco Products [cite: 400] |
| Address |
401 Marshall Road, Valley Park, Missouri 63088, United States [cite: 400] |
| Contact Information |
Tel: (636) 923-2121 | Fax: (636) 923-3002 | [cite_start]Email: [email protected] [cite: 400] |
| Emergency Phone |
(800) 255-3924 [cite: 402] |
2. Hazard Identification & Composition
| GHS Classification |
Skin corrosion/irritation, Cat. 1; Eye damage/irritation, Cat. [cite_start]1 [cite: 406, 407] |
| Signal Word |
DANGER [cite: 427] |
| Hazard Statements |
H314: Causes severe skin burns and eye damage [cite: 413, 428] |
| Hazardous Components |
CAS No. |
Concentration (Weight) |
| 2-Butoxyethanol [cite: 442] |
111-76-2 [cite: 454] |
0.11% [cite: 452] |
| Potassium Hydroxide [cite: 447] |
1310-58-3 [cite: 458] |
0.01-0.1% [cite: 456] |
| Dodecylbenzenesulfonic acid, sodium salt [cite: 460] |
68081-81-2 [cite: 461] |
0.01-0.1% [cite: 461] |
| Sodium xylenesulfonate [cite: 462] |
1300-72-7 [cite: 465] |
0.01-0.1% [cite: 465] |
3. Physical & Chemical Properties
| Physical State & Appearance |
Clear Orange Liquid [cite: 604, 606, 612, 613] |
| Odor |
Citrus [cite: 614] |
| pH |
11.5-12.5 [cite: 626] |
| Boiling Point |
212°F (100°C) estimated [cite: 617] |
| Freezing Point |
32°F (0°C) estimated [cite: 616] |
| Relative Density |
1.03-1.05 [cite: 642] |
| Solubility |
Completely soluble in water [cite: 638] |
4. Stability & Reactivity
| Chemical Stability |
Stable under recommended storage conditions [cite: 646] |
| Reactivity |
Reacts strongly with strong acids; may react with oxidizing agents [cite: 644] |
| Conditions to Avoid |
Direct sunlight, extreme temperatures, heat, sparks, and open flames [cite: 650] |
| Incompatible Materials |
Strong acids, strong alkalis, and oxidizing agents [cite: 652] |
| Hazardous Decomposition |
Carbon oxides, potassium oxides, and fumes [cite: 654] |
5. Toxicological Information
| Acute Effects |
Harmful if inhaled. [cite_start]Causes severe irritation with redness and swelling of conjunctiva; contact with gas/liquid can cause permanent eye damage[cite: 487, 489, 490]. |
| Skin Contact |
Causes severe irritation with burns; prolonged contact will destroy tissue[cite: 488, 672]. |
| Sensitization |
May cause chemical burns, upper respiratory damage, and pulmonary edema[cite: 676]. |
| Carcinogenicity |
No components identified as probable or confirmed human carcinogens at levels >= 0.1%[cite: 680]. |
6. First-Aid Measures
| Eye Contact |
Immediately rinse with water for at least 15 minutes. Remove contact lenses if present. [cite_start]Obtain medical attention[cite: 484, 485]. |
| Skin Contact |
Immediately drench area with water for at least 15 minutes. Remove contaminated clothing. [cite_start]Seek medical attention if irritation persists[cite: 482, 483]. |
| Inhalation |
Remove person to fresh air and keep comfortable for breathing. [cite_start]Get medical advice[cite: 480, 481]. |
| Ingestion |
Rinse mouth. [cite_start]Do NOT induce vomiting. Obtain medical attention[cite: 486]. |
7. Fire-Fighting & Accidental Release
| Extinguishing Media |
Water spray, fog, CO2, alcohol-resistant foam, dry chemical, or sand[cite: 499]. |
| Firefighting Hazards |
May be corrosive to metals. [cite_start]Risk of explosion; fight fire remotely if fire reaches containers[cite: 501, 505]. |
| Spill Cleanup |
Isolate spill area. Contain with dikes or absorbents. Eliminate ignition sources. [cite_start]Ventilate area before re-entry[cite: 527, 528, 529, 532]. |
8. Handling, Storage & PPE
| Safe Handling |
Do not breathe vapors/mist. Avoid contact with eyes, skin, and clothing. [cite_start]Wash hands thoroughly after handling[cite: 543, 544]. |
| Storage |
Store locked up in a dry, cool, well-ventilated place. Keep in original container. [cite_start]Do not exceed 122°F (50°C)[cite: 552, 553, 554]. |
| Personal Protection |
Wear chemical safety goggles, protective gloves, and fire/flame resistant clothing. [cite_start]Use NIOSH-approved breathing apparatus if limits exceeded[cite: 595, 597, 599, 601]. |
9. Transport & Regulatory Information
| UN Number |
UN3266 [cite: 728] |
| Proper Shipping Name |
Corrosive liquid, basic, inorganic, n.o.s. [cite: 731] |
| Hazard Class / Group |
Class 8 / Packing Group I [cite: 729, 730] |
| SARA 311/312 |
Fire Hazard, Acute Health Hazard, Chronic Health Hazard [cite: 779] |
| California Prop 65 |
Does not contain chemicals known to cause cancer or reproductive harm[cite: 751]. |
10. Disposal & Ecological Information
| Disposal Method |
Hazardous waste per EPA 40 CFR 261. Dispose in accordance with local and international regulations[cite: 718, 719, 722]. |
| Ecological Toxicity |
2-Butoxyethanol: LC50 (Trout) 1,474 mg/l; [cite_start]Potassium Hydroxide: LC50 (Mosquito fish) 80 mg/l[cite: 700, 706]. |
| Mobility in Soil |
Product is mobile in soil[cite: 714]. |
11. Disclaimer & Preparation Information
| Prepared By |
Jessica Wilson |
| Preparation Date |
6/6/2025 |
| Disclaimer |
Data is provided without warranty, expressed or implied, regarding correctness. The manufacturer is not responsible for loss, injury, or expense arising out of improper use. |
