LX-500E Exterior Leveller
LX-500E Exterior Leveller is a fast-setting, high-strength concrete resurfacing and external levelling compound, with a depth range of 2–20 mm. This polymer-modified cementitious compound is classified as CT-C35-F7 and delivers exceptional compressive strength of 35 N/mm², making it significantly stronger than standard levellers.
It’s ideal for garage floors, carports, workshops, paths and driveways, where a rapid return to service is required. With foot traffic possible after just two to three hours and light rubber-wheeled traffic after 48 hours, LX-500E can help minimise project downtime and accelerate workflow.
APPLICATIONS
LX-500E Exterior Leveller is suitable for:
- External concrete surfaces, including paths, driveways, and walkways (minimum 10mm thickness)
- Garage floors, carports and workshops
- Internal dry concrete floor levelling (2-20mm depth)
- Resurfacing damaged concrete floors
- Filling holes in concrete surfaces
- Pre-smoothing concrete floors prior to damp proof membrane application
- Areas requiring rapid turnaround (foot traffic after 2 hours)
- Surfaces requiring non-slip broom finish
Note: Not suitable over underfloor heating, or areas subject to intensive heavy loading without an appropriate epoxy primer. May be unsuitable for aged or frost-damaged concrete subject to regular deflection from thermal cycling or mechanical loading.
SUITABLE SUBSTRATES & PREPARATION
LX-500E can be applied to:
- Mature concrete surfaces (at least 6 weeks old) – must be mechanically prepared by scabbling, grinding or shotblasting
- Bonded cement/sand screed (>30N/mm² compressive and 1.5N/mm² pull off)
- Areas subjected to regular rubber wheeled traffic or heavy loading (use solvent free epoxy primer with sand blinding)
Critical Preparation Requirements:
- Surface must be hard, sound, thoroughly cleaned, free of oil, grease, curing compounds and all barriers to adhesion
- Mechanical preparation essential – surface must show clean sound concrete with exposed aggregate
- Use a suitable degreaser for oil/grease removal, rinse well before mechanical preparation
- Vacuum clean prepared surface, ideally wash with high-pressure water jet
- Structural, movement or live joints must be carried through to surface
- For internal dry use: prime with MULTI-PURPOSE PRIMER diluted 1:1 or SBR UNIVERSAL BONDING AGENT diluted 1:4, allow to dry
- For external use: dampen with clean water, apply LX-500E whilst surface is still damp
Note: Thorough mechanical preparation is essential, especially for commercial areas with regular rubber wheeled traffic or heavy loading. Contact Dunlop Technical Helpline for specific preparation guidance.
Coverage
A 20kg bag of LX-500E Exterior Leveller covers approximately 2.3m² at 5mm thickness. The coverage rate is approximately 1.76kg per mm/m². For example, a 20kg bag covers approximately 5.7m² at 2mm depth, or 1.1m² at 10mm depth. For external paths or walkways, a minimum thickness of 10mm should be applied. The maximum combined thickness of multiple layers should not exceed 20mm. Coverage depends on substrate condition and application depth.
Technical Specifications
| Size | 20kg |
| Colour | Grey |
| Classification | CT-C35-F7 |
| Pot Life* | 30 minutes |
| Foot Traffic After* | 2-3 hours |
| Light Rubber Wheeled Traffic After* | 48 hours |
| Bed Thickness | 2-20mm (minimum 10mm for external paths/walkways) |
| Compressive Strength | C35 (35 N/mm²) |
| Shelf Life | 12 months |
*Depending on temperature, background conditions and site environment
Please refer to the product datasheet before use. For technical advice or substrate-specific guidance, contact the Dunlop Technical Helpline on 01782 591120 or email info@dunloptrade.com.

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