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Overview

**Overview** HD-S2 Heavy Duty Step Two is a high-strength caustic cleaner engineered to remove heavy organic soils, oils, grease, soot, proteins, and carbon buildup. Used immediately after HD-S1, it completes the industrial two-step washing process for maximum cleaning efficiency on heavily soiled fleets and equipment.

HD-S2 Heavy Duty Step Two – Industrial Alkaline Organic Soil & Grease Remover

Model: 316C
Web Code: 17923186
Sold and shipped by | 3.5 seller rating (2 reviews)

Available for deliveryAvailable online only

Delivery times vary by location. Most Marketplace items leave sellers' locations within 2 business days. Allow additional time for shipping.

Seller Return Policy

Read return policy

Warranty

Check with the manufacturer for details.

For Quebec residents: See the Availability Guarantee disclosure in the Specifications section below.

**Key Benefits**

- Removes organic contaminants including oils, greases, soot, and carbon

- Completes the cleaning reaction initiated by HD-S1

- Extremely effective on industrial and commercial vehicles

- Greatly reduces manual scrubbing in high-soil environments

- Performs exceptionally well with pressure washers and hot water systems

- Built for construction, industrial, and municipal fleets

**Dilution Instructions**

- General cleaning: 50 mL per 4 L

- Normal soil: 100 mL per 4 L

- Heavy soil: 200 mL per 4 L

- Difficult organic buildup: 500 mL per 4 L

**Application / Use**

1. Apply immediately after HD-S1 while the surface is still wet.

2. Spray directly over HD-S1 to activate the cleaning reaction.

3. Allow a short dwell time.

4. Rinse thoroughly with a pressure washer or hot water wash system.

**Ideal For**

- Industrial fleets and long-haul transport trucks

- Construction vehicles and heavy equipment

- Waste haulers and municipal service fleets

- Equipment exposed to oils, grease, soot, and organic grime

- High-soil environments requiring strong alkaline cleaning

**Professional Use Warning**

This is a caustic industrial cleaner intended for trained professionals only.

Avoid use on polished aluminum, chrome, stainless accents, or sensitive metals.

Always use proper PPE and follow safe handling procedures.

**Safety & SDS**

SDS documents are available upon request. Use appropriate PPE when handling chemical products.

For Quebec residents – Disclosure under the Consumer Protection Act

In compliance with Bill 29, Best Buy and third-party sellers on Best Buy Marketplace do not guarantee the availability of replacement parts, repair services, or maintenance information for any products. Coverage provided through any Best Buy Protection programs and applicable manufacturer warranties, if any, remain in place. Please contact the manufacturer directly for information about their availability guarantee.

Shipping Charges

Free standard shipping may be available on orders over a minimum amount (before taxes, fees, and promo codes). Shipping charges may vary based on item size and your shipping address. Want a shipping charge estimate? Simply add an item to your cart, then access the cart and enter your postal code in the shipping estimate section.

Processing Time

Most items ship within 2 business days after an order is placed*. Allow additional time for shipping to your address.
*Please note: If an item you ordered becomes unavailable, you'll be notified and a full refund will be processed within 2 business days.

Shipping Area Restrictions

Shipping is not available in the following areas*:
  • No restrictions in Canada
*Please note: Shipping area restrictions may vary for large items. If an item can't be shipped to your address, we'll let you know during the checkout process.
See our return policy to find specific return information for this product and steps on how to return by mail.