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Huge Discounts On Bulk Orders – Call 0845 862 1099 For A Bespoke Quote.

Fast Delivery UK Mainland

Free Delivery on Full Pallets & Selected Lines

Collection by Appointment

Open Mon-Fri
8:30-5:30pm

Next Day Delivery Available

Larsen Professional SLC 2500

£21.00 Ex. VAT - £25.20 Inc. VAT

Larsen SLC 2500 is a rapid set, hand or pump applied cement based levelling topping, specially designed to eliminate surface irregularities and smooth both internal and external concrete surfaces which are exposed to industrial traffic. SLC can be applied from 5-15mm, or for isolated thickness up to 50mm you can mix 25KG SLC 2500 with 12.5KG of clean, dry 3-6mm aggregate.

Rapid drying | Hard Wearing | Slip resistant finish | External Use |  5-15mm | Foot traffic 2-4 hours | Full Traffic 1-2 Days

Packaging: 25kg multi-wall paper sacks

Coverage: 2m2 per 25kg @ 7mm | 3m2 per 25KG @ 5mm

Pallet deals available, to speak to a member of our team call: ☎️ 0845 862 1099

In stock

Get it from Thu 26th. May - Mon 30th. May Estimated delivery date, click here for info
Next Day Delivery available at checkout
Please see our FAQ’s for more information.

Delivery & Returns Info

Delivery is calculated on size & weight of order, charges displayed when added to basket. Small orders via courier, larger orders via Pallet Network (Click & Collect available call 0845 862 1099). Need further info, click here.

Weight Price Volume
0-25KG £8.001 bag / tub
25.01-50KG £16.00 2 x bags / tub
50.01-75KG £24.00 3 x bags / tub
75.01-100KG£32.004-5 bags /tubs
100.01-249 KG £38.00 5-9 bags / tubs
249.01-750KG £40.0010 bags plus
750.01KG + £30.00 30 bags plus
Full Pallets FOC* £0.0052 tubs / 56 bags
Premium Next Day Service+ £10 Click here for prices
Scotland Delivery Service Click here for prices
Local Delivery & Click & Collect: ☎️ 0845 862 1099

*Small additional charges may apply to certain parts of Scotland or areas with HGV Restrictions. Next Day delivery + £10 (*exc. apply)

Returns, cancel up to 14 days from date of delivery. Product to be returned in the same condition & packaging. No returns for cementitious & perishable products. You are responsible for returning goods to The Paving Experts. Need further info, click here.

For any advice; technical, product, stock or quantity needed, call our team on 0845 862 1099.

how much do i need?

Area

Slab Width

Slab Length

Joint Width

Joint Depth

amount:

Larsen Professional SLC 2500 External Leveller

Professional SLC 2500 External is a single pack, fast drying, hand or pump applied cement based levelling topping designed to eliminate surface irregularities and smooth internal and external concrete surfaces exposed to industrial traffic.

It is manufactured from a controlled blend of special sands, cements and synthetic polymers to give a high quality flooring product which is self-levelling and smoothing, dimensionally stable and fast drying allowing vehicular traffic after 48 hours. Professional SLC 2500 is designed for application between 5 and 15mm to provide an exterior wearing surface.

  • Single pack
  • Self-levelling
  • 5-15mm in one application
  • Rapid drying
  • Hard wearing finish
  • Slip resistant finish
  • External Use

How do you prepare for using Larsen SLC 2500 External?

It is not recommended to begin to use Larsen SLC 2500 if rain is expected within 8 hours, or if freezing temperatures are expected within 24 hours. You must protect working areas from dirt, dust, particles and debris, until SLC 2500 External Screed has hardened. It is important to ensure that the concrete or screed surface must be suitable to receive the screed as per current good working practices, i.e the substrate must be clean and sound.

Heavily trafficked areas or old damaged substrates must be suitably prepared with grit shot blasting or water jetting, to provide a suitable mechanical key. Then all residue must be removed to provide a dry, dust free open textured surface free from latency, surface treatment and other contamination.

It is important to ensure that the air and substrate temperatures are +5 degrees before beginning, the surface tensile strength of the substrate should also be a minimum of 1.0MPA.

Do I need to prime before using Larsen SLC 2500?

It isn’t usually necessary to prime non-absorbent surfaces, however, to ensure satisfactory bonding, the prepared surface should be dampened down to minimise pin-holing. You must ensure that the surface is saturated, but there must be no pooling or ponded water prior to starting application.

How do I mix Larsen SLC 2500?

to mix Larsen SLC 2500, add 4.5-5 litres of clean water per 25KG bag. Mix with a paddle mixer, for 1-2 minutes or with a suitable continuous mixer or pump. Please note that adding extra water to create a more flowable consistency will cause a loss of strength.

How do I apply Larsen SLC 2500?

To apply Larsen SLC 2500, pour or pump the mixed product onto the prepared surface and then allow the material to attain the required self-level. SLC 2500 External has a working time of 30 minutes at 20 degrees, any product not used at this point should be discarded. Where necessary, then release the air bubbles with a trowel or spiked roller, this should be carried out within 5-10 minutes of application. SLC can be applied from 5-15mm, for isolated thickness of up to 50mm mix 25KG SLC 2500 with 12.5KG of clean, dry 3-6mm aggregate. To lay SLC 2500 to falls, add sufficient water to reach a trowellable consistency.

How do you seal Larsen SLC 2500?

SLC 2500 does not generally require sealing, if extra protection is required, any of Larsen sealers suitable for use on concrete can be applied. For example, Larsen Acrylic Concrete Sealer.

How to prepare joints!

Ensure that all joints subject to movement, are carried up through the SLC 2500 and filled with a suitable joint sealant. Any large or structural cracks should be repaired prior to application of SLC 2500 to reduce the risk of reflective cracking in the topping.

Restrictions:

SLC 2500 External should not be applied to flexible surfaces, brick paving, bitmac or asphalt. Do not place when substate temperatures are below 5 degrees or ambient temperatures are below 10 degrees and falling. Do not apply above 25 degrees. Extra water should not be added to the mix. If material thickens before it is applied it should be discarded. Protect from direct sun, when applying and curing. Do not apply in excessively windy conditions. do not apply during rain, or when rain is forecast. Protect from frost. do not exceed the maximum recommended water content.

Technical information

Size 25kg multi-wall paper sack
Coverage 2m² per 25kg @ 7mm | 3m² per 25KG @ 5mm
Bed thickness 5-15mm | to 50mm (see above)
Application temperature 5℃ to 30℃
Foot traffic 2-4 hours
Full traffic 1-2 days
Shelf life 6 months when stored in unopened bags and away from damp and drafts

How do I mix Larsen SLC 2500?

Mix Larsen SLC 2500, add 4.5-5 litres of clean water per 25KG bag. Mix with a paddle mixer, for 1-2 minutes or with a suitable continuous mixer or pump. Please note that adding extra water to create a more flowable consistency will cause a loss of strength.

How do I apply Larsen SLC 2500?

To apply Larsen SLC 2500, pour or pump the mixed product onto the prepared surface and then allow the material to attain the required self-level. SLC 2500 External has a working time of 30 minutes at 20 degrees, any product not used at this point should be discarded. Where necessary, then release the air bubbles with a trowel or spiked roller, this should be carried out within 5-10 minutes of application. SLC can be applied from 5-15mm, for isolated thickness of up to 50mm mix 25KG SLC 2500 with 12.5KG of clean, dry 3-6mm aggregate. To lay SLC 2500 to falls, add sufficient water to reach a trowellable consistency.

How do you seal Larsen SLC 2500?

SLC 2500 does not generally require sealing, if extra protection is required, any of Larsen sealers suitable for use on concrete can be applied. For example, Larsen Acrylic Concrete Sealer.

How to prepare joints!

Ensure that all joints subject to movement, are carried up through the SLC 2500 and filled with a suitable joint sealant. Any large or structural cracks should be repaired prior to application of SLC 2500 to reduce the risk of reflective cracking in the topping.

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