Cretex® Deepfill is a specialist floor repair mortar formulated to deliver extremely rapid strength gain and reliable performance in demanding industrial environments. Thanks to its magnesium phosphate base and advanced blend of aggregates and cements, Deepfill cures quickly at a wide range of temperatures and is especially suited to deep patching, levelling, and reinstating concrete surfaces where minimal downtime is critical.
Ideal for loading bays, warehouses, heavy traffic areas, and structural repairs around bolts, gratings, hydrants, and covers, Cretex Deepfill adheres well to both dry and damp substrates and is chloride-free for safe use with steel and cast-iron fixtures.
Key Features
- Rapid curing for minimal downtime
- High strength for durable repairs
- Bonds to dry or damp concrete
- Chloride-free and corrosion safe
- Simple mixing and application
- Designed for heavy-duty areas
For more useful information ready our guide: How To Identify & Repair Damaged Concrete Flooring: A Practical Guide
Note: this product has a best before date of April 2026 and is priced to reflect this. We advise this product is still perfectly usable for up to 6 months after this date. We do not accept returns on this product after April 2026.
Its fast curing characteristics make Cretex Deepfill ideal for industrial floor areas, loading bays and warehouses. Around fixing bolts, raising and levelling manhole covers, gratings, hydrants etc. Also excellent for roads, bridge decks, quays and crane rails.
Cretex Deepfill may be applied to both dry & damp surfaces.
Suitable substrates: Cretex Deepfill is designed primarily for use on concrete. The product is chloride free and may safely be used in contact with cast iron and steelwork.
Colour: Cretex Deepfill is grey in colour
Packaging: Cretex Deepfill is supplied in 28kg units.
Surface Preparation
THOROUGH SUBSTRATE PREPARATION IS ESSENTIAL.
Concrete repairs should be prepared with squared off edges having a 10mm minimum vertical lip. Under no circumstances should “feather edging” be used. Remove all loose material – wire brushing is advisable. Sweep clean or vacuum. The surface must be free from grease, oil or contamination. A gas torch will help to remove oil from the surface.
Mixing
For application temperatures below 5˚C – pre-warm the mixing vessel using hot water and warm the mixing water to between 25˚C and 30˚C. This will accelerate the cure time. Measure 1.2Ltrs water into a clean mixing bucket and add the complete 20kg unit quantity of Cretex Deepfill powder and 8kg aggregate. DO NOT EXCEED the stated ratio of water to powder. Mix to a trowellable consistency using a heavy duty slow speed drill and mixing paddle or force action mixer.
DO NOT MIX MORE THAN CAN BE APPLIED IN 10 MINUTES.
Application
Having prepared and pre-wetted the substrate, apply the material using a trowel IMMEDIATELY AFTER MIXING.
