Pro-Hold™ Gravel & Mulch Glue
Gravel Binder · Pebble Glue · Stone Binder · Landscape Glue · Mulch Glue · Rock Glue
Not satisfied? Full refund, no questions asked. That's how confident we are in Pro-Hold™.
One Binder for Gravel, Pebbles, Slate & Mulch
Pro-Hold™ is a water-based acrylic gravel binder that holds the top layer of loose decorative aggregate, pebbles, stones or bark mulch in place — reducing scatter, keeping edges tidy, preventing wash-out and cutting routine maintenance. Ready to use straight from the bottle — no mixing, no dilution, no specialist tools required. A practical gravel stabiliser for domestic garden projects.
Stops gravel scattering underfoot on walked paths and entrance ways
Keeps decorative stone
Holds bark mulch and stones in place around tree bases
Suitable for 4–10mm pea shingle and pea gravel with correct base prep
Locks chippings
Stops bark and wood chip blowing or washing away from beds
Stabilises gravel at the edges of paving slabs or stepping stones
Binds loose decorative stone in rock garden and water feature areas
Is Pro-Hold™ Right for Your Project?
Performance depends on surface type, stone size, depth, base compaction, and traffic level. Review this table before ordering — honest limitations prevent poor results and protect your investment.
| Project / Surface | Result | Notes |
|---|---|---|
| Garden path — light foot traffic | ✓ | Compact base to 75mm max depth. Best with 4–10mm stone. |
| Decorative border / flower bed | ✓ | Ideal use case — low traffic, stable base, any suitable aggregate. |
| Tree surrounds & mulch beds | ✓ | Works on bark, wood chip and gravel around tree bases. |
| Pea shingle / pea gravel | ✓ | Well-compacted only. Max depth 75mm. 4–6mm optimal. |
| Decorative pebbles | ✓ | Good result. Smooth surfaces — re-tamp firmly while wet. |
| Slate chippings | ⚠ | Dusty surfaces reduce adhesion. Rinse, dry, and test a small area first. |
| Steep slopes | ⚠ | Gravity stresses the bond. Compact very thoroughly; allow full cure. |
| Shaded / persistently damp areas | ⚠ | Slower curing in shade and damp. Allow extended cure time before use. |
| Gravel depth over 75mm | ⚠ | Reduce and compact to 75mm before applying. Deeper gravel cannot be stabilised by any product. |
| Under garden furniture or heavy objects | ⚠ | Concentrated weight from furniture legs can stress the bond. Consider furniture pads. |
| High-wear domestic footpaths | ⚠ | Compact thoroughly, use 4–10mm stone, allow full 72hr cure. |
| Active vehicle driveways | ✗ | Vehicle loads exceed bond strength. Use a resin-bound driveway system. |
| Parking areas / car loads | ✗ | Not recommended under any vehicle type, loaded trolley or heavy machinery. |
| Heavy commercial foot traffic | ✗ | Designed for domestic pedestrian use only. Not rated for commercial throughput. |
| Unstable or uncompacted base | ✗ | Bond cannot compensate for a moving sub-base. Compact first, always. |
| Waterlogged or saturated ground | ✗ | Surface and material must be dry before application. Moisture prevents bonding. |
| Before expected rain (within 72hrs) | ✗ | 72-hour dry window required after application. Always check local forecast. |
How Much Gravel Glue Do I Need?
One 5L bottle of Pro-Hold™ covers approximately 8m² using the recommended 2-coat surface method. Coverage varies slightly with stone porosity and depth — always round up to avoid running short mid-project.
| Area | Bottles | Price |
|---|---|---|
| Up to 8m² | 1 × 5L | £33.99 |
| Up to 16m² ★ BEST VALUE ★ | 2 × 5L | £55.00 |
| Up to 32m² | 4 × 5L | £90.00 |
Coverage Calculator — Enter Your Dimensions
Everything You Need to Know
How to Apply Pro-Hold™ Gravel Glue — Step-by-Step Guide ▼
Clear all weeds and debris. Use a vibrating plate compactor or hand tamper until the sub-base is completely firm. This is the most critical factor in long-term performance — no product compensates for a soft base.
Apply Pro-Hold™ evenly over the dry surface using a clean watering can. Immediately re-tamp while still wet — this forces the binder into the contact points between stones and removes air pockets for maximum bond.
After 24 hours apply a second coat evenly. Use a stiff brush to work away any pooling in low spots. Allow 72 hours before foot traffic. Pro-Hold™ dries crystal clear — no colour change to your stone or mulch.
Keep the surface protected from rain and foot traffic for the full 72-hour cure window. Once cured, walk the surface firmly to confirm the bond before normal use. If any patches feel loose, re-apply a single coat to those areas.
Application Rules
| Rule | Requirement | Why it matters |
|---|---|---|
| Minimum temperature | Above 10°C | Cold temperatures prevent full curing and bonding |
| Weather | Dry only — no rain | Rain during curing dilutes binder and weakens bond significantly |
| Gravel depth | Maximum 75mm (3 inches) | Deeper gravel moves under load regardless of product or quantity |
| Stone size — optimal | 4–10mm | Smaller stones create more contact points for a stronger bond |
| Stone size — maximum | Up to 20mm | Larger stones bond but with fewer contact points |
| Tools required | Watering can + stiff rake/tamper | No specialist tools or machinery required |
| Coat 1 cure time | Allow 24 hours before second coat | Do not recoat until first coat is fully dry |
| Full cure time | 72 hours | No foot traffic for 72 hours after the second coat |
| Rain protection | 72 hours after application | Protect from rain for the full cure window |
| Application to wet surface | Never | Surface must be dry before and during application |
Application Methods
| Method | Best for | Tools | Coverage |
|---|---|---|---|
| 2-Coat Surface (recommended) | Existing installed gravel | Watering can + tamper | ~8m² per 5L bottle |
| Mix-In (new installations) | New gravel being laid fresh | Mixing board + tamper | ~6 × 25kg bags per 5L |
Common Causes of Failure
Safety, Permeability, Appearance, Durability & Weather Resistance ▼
Water-based
The bonded surface remains breathable and allows natural rainwater to infiltrate. SUDS-compliant.
Dries to a transparent finish. May have slight sheen on smooth or dark stones — test a small area first. Will not alter colour or texture.
UV-stabilised formula prevents yellowing and polymer breakdown under prolonged sunlight.
Once fully cured (72 hours)
Non-toxic
In domestic pedestrian use with a compacted base
Binding the surface layer helps reduce weed establishment. For best results
Once cured
Technical Specifications & Product Data — REF: MFC-PH-01 ▼
Full Product Specification
| Attribute | Detail |
|---|---|
| Product name | Pro-Hold™ Gravel & Mulch Glue |
| SKU | MFC-PH-01 |
| Pack sizes | 1 × 5L · 2 × 5L bundle · 4 × 5L trade pack |
| Volume per unit | 5 litres |
| Approx. weight | 5.2kg per 5L unit |
| Finish | Crystal clear — invisible on stone |
| Not for use on | Driveways · parking areas · vehicle loads |
| Shelf life (unopened) | 12 months |
| Storage | Cool, frost-free, sealed container |
| Manufacturer | Natures Merchant Ltd t/a Mifica Products |
| Manufactured at | East Kilbride, Glasgow G74 5PA |
For Safety Data Sheet (SDS) or Technical Data Sheet (TDS), contact Mifica directly →
Why Is Pro-Hold™ Cheaper Than Garden Centre Alternatives? ▼
Most gravel binders sold at B&Q, Homebase or on Amazon are purchased from a chemical producer, repackaged under a retail brand, and marked up at least twice before reaching the shelf.
Pro-Hold™ is formulated and manufactured in-house from raw solid acrylic resin at our East Kilbride facility. When you buy from Mifica, you buy directly from the people who manufactured it.
"Better than the products I source through my trade account. Significant price saving and the performance matches anything I've used before. Stones locked tight after six months."
Garden Paths · Verified Purchase"Crystal clear finish — you genuinely cannot tell it's been treated. Gravel hasn't moved a millimetre in six months of daily foot traffic. Exactly as described."
Pea Shingle Garden Path · Verified Purchase"Followed the 3-step method exactly as instructed. Rock solid result after one weekend's work. No more weeds pushing through. Recommended it to three neighbours already."
Decorative Border & Bed · Verified Purchase"Used on bark mulch around our apple trees. It held everything in place through a full winter including some quite strong winds. Brilliant for mulch and bark use."
Bark Mulch & Tree Surrounds · Verified Purchase"Bought the 4-bottle trade pack. Treated my whole front garden — gravel path, two borders and a tree surround — and still had one bottle left. Coverage exactly as stated."
Multiple Areas · 4×5L Trade Pack"Steep gravel path on a hillside garden — nightmare before. Two coats as directed with thorough tamping. Eight months on, not a single stone has shifted. Outstanding."
Sloped Garden Path · Verified Purchase"Ordered at 2pm, on my doorstep the very next morning. Arrived in perfect condition. Product worked exactly as described. Fast, professional service."
Delivery & Service · Verified Purchase"Good website, easy ordering, tracking email same day, arrived before 9am next morning. Product itself is excellent — gravel completely locked down."
Delivery & Product · Verified PurchasePro-Hold™ Gravel Glue — Questions Answered
Order Pro-Hold™ — Fast UK Delivery
Before ordering, confirm three things:
If applying on a slope, near vehicles, on gravel deeper than 75mm, or you're unsure about your surface — check the suitability guide first or contact us for project advice before ordering. We're happy to help.
Gravel Glue Guides & Articles
Base preparation, the 3-inch rule, application sequence, coat timing, re-tamping technique, cure time and common causes of failure.
Read the guide →The clear difference between a domestic gravel binder and a structural resin-bound driveway system, with a side-by-side comparison.
Read the guide →Base compaction, gravel depth, coat count, traffic level and weather — the five variables that control how long the bond holds.
Read the guide →Pea shingle, angular gravel, slate chippings, decorative pebbles — which aggregate types bond best and which need special preparation.
Read the guide →Gravel binder, edging restraints, stabiliser grids, base compaction and membrane — five approaches compared by use case and cost.
Read the guide →