Decomposed granite (DG) is one of the most popular and affordable landscape materials in the US. It's natural, permeable, and looks great on pathways, patios, driveways, and garden borders. But it has one major problem: it doesn't stay put.
Without a stabilizer, DG shifts underfoot, washes away in rain, tracks into your house, and creates an uneven, messy surface within weeks. That's where a decomposed granite stabilizer comes in.
What Is a Decomposed Granite Stabilizer?
A decomposed granite stabilizer is a product that binds loose DG particles together to create a firm, stable surface. Think of it as glue for your gravel — it locks the individual particles in place while keeping the natural, permeable look that makes DG so popular.
Stabilizers come in several forms, each with different strengths and application methods.
3 Types of DG Stabilizers
1. Mechanical Stabilizers (Grid Pavers)
Plastic or metal grids that sit underneath or within the DG layer, physically holding material in place. Products like Brock PaverBase or GravelFix fall in this category.
Pros: Very durable, good for driveways with vehicle traffic
Cons: Expensive ($3-8 per sq ft installed), requires excavation and base preparation, visible grid edges if not perfectly installed
2. Polymer Stabilizers (Mix-In Binders)
Powder or liquid polymers mixed into the DG before or during installation. Products like Stabilizer Solutions or Gator Stone Bond fall here.
Pros: Creates a very hard surface, good for high-traffic areas
Cons: Must be mixed in during installation (can't retrofit existing DG), can reduce permeability if over-applied, tricky mixing ratios
3. Spray-On Adhesives (Surface Binders)
Liquid adhesives sprayed directly onto existing DG surfaces. EcoLock HD is a spray-on stabilizer — you spray it directly onto your existing decomposed granite without any mixing or excavation.
Pros: Easiest application (spray and go), works on existing DG without removal, maintains full permeability, most affordable option
Cons: Not suitable for heavy vehicle traffic (fine for foot traffic and light garden vehicles)
How to Stabilize Decomposed Granite with EcoLock HD
If your DG is already laid and you want to lock it in place without starting over, a spray-on stabilizer is the fastest solution. Here's the step-by-step process:
What You'll Need
- EcoLock HD (1 gallon covers up to 193 sq ft)
- A pump sprayer (standard garden sprayer works perfectly)
- A rake
- A dry day with no rain forecast for 8+ hours
Step 1: Prepare the Surface
Make sure your DG surface is clean and dry. Remove leaves, twigs, and debris. If there are puddles or the DG is damp below the surface, wait for it to dry completely — moisture weakens the bond.
Step 2: Spray the First Coat
Pour EcoLock HD directly into your pump sprayer (no dilution needed). Set the nozzle to a fine mist and spray evenly across the entire DG surface from 6-12 inches away. Use a light, even coat — don't saturate.
Step 3: Rake and Turn
After 2-4 hours, once the first coat is touch-dry, use a rake to gently turn the top layer of DG. This exposes the uncoated undersides of the particles so the second coat can bond them from all angles.
Step 4: Spray the Second Coat
Apply a second light, even coat. This seals everything together. Two thin coats always perform better than one heavy coat.
Step 5: Let It Cure
Rain safe in 8 hours. Foot traffic safe in 12-16 hours. Fully cured in 24 hours. The cured surface is firm but not rigid — it has a natural feel underfoot and remains fully permeable to water.
How Much Stabilizer Do I Need?
One gallon of EcoLock HD covers up to 193 square feet with the recommended 2-coat application. Measure your DG area (length × width) and divide by 193.
| Area Size | EcoLock HD Needed |
|---|---|
| Up to 100 sq ft | 1 gallon (some left over) |
| Up to 193 sq ft | 1 gallon |
| 200-400 sq ft | 2 gallons |
| 400-600 sq ft | 3 gallons |
Pro tip: The 2-gallon jug saves you $10 compared to buying two singles — best value if you have more than 193 sq ft to cover.
DG Stabilizer vs. Resin Binder — What's the Difference?
You might see terms like "resin binder," "gravel binder," and "stone binder" used interchangeably with "stabilizer." Here's the difference:
- Stabilizer is the broad term — anything that makes loose material stay in place
- Resin binder usually refers to a thicker, epoxy-based product that creates a harder surface (more like a resin-bound driveway)
- Spray adhesive / landscape glue (like EcoLock HD) is a lighter, water-based product that bonds particles while maintaining the natural look and feel
For most homeowners stabilizing a DG patio, pathway, or garden border, a spray adhesive is the right choice. Resin binders are better suited for driveways with regular vehicle traffic.
Frequently Asked Questions
Can you stabilize decomposed granite after it's been laid?
Yes — that's exactly what spray-on stabilizers like EcoLock HD are designed for. You spray directly onto existing DG without needing to remove or replace it.
Does stabilizer change the look of decomposed granite?
No. EcoLock HD dries completely clear and transparent. Your DG will look exactly the same — just firmer and more stable.
How long does DG stabilizer last?
EcoLock HD provides a strong hold for up to 24 months when applied as directed. High-traffic areas may need a touch-up coat sooner.