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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

Pallet Deal Larsen SLC 1550 x 39 Bags

£615.61 Ex. VAT - £738.73 Inc. VAT

Our best price on a full pallet of 39, 25KG bags of Larsen Professional SLC 1550. SLC 1550 is a fast drying, hand or pump-applied, cement-based, self levelling flooring screed which covers applications up to 25mm in one pass. SLC 1550 is ideal for underfloor heating or as a surface preparation for tiles, timber flooring, carpet, natural stone in factories, schools, offices & hospitals.

Trade Deal 39 Bags | FREE DELIVERY | Self-levelling | Up to 25mm in one pass | Fast drying | Apply finishes in 24 hours | Foot traffic in 2 – 4 hours | BS EN 13813 CT – C30 – F7

Packaging: 25kg multi-wall paper sacks

Coverage: 25 kg will cover 1m2 @ 12.5mm

Call ☎️  0845 862 1099 for more trade deals or to place an order! Smaller quantities available here: 

In stock

Get it from Wed 25th. May - Fri 27th. 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.

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Larsen SLC 1550 Self Levelling Flooring Screed

Buy a Full Pallet of 39 x 25KG bags of Larsen SLC 1550 Self Levelling Flooring Screed and Save!  SLC 1550 is a fast-drying, hand or pump-applied, cement-based, self levelling flooring screed, for use in fast track commercial situations such as hospitals, large offices, factories, gyms and warehouses – where floor finishes need to be applied quickly.

SLC 1550 is manufactured from a blend of special sands, cements and synthetic polymers to provide a high quality flooring screed which is self-levelling and provides a smooth finish. This professional grade universal renovation screed is ideal for both domestic and commercial flooring applications, where levels of up to 25mm are needed. SLC 1550 does not provide a final finish but provides a perfect substrate for installing carpet, ceramic tiles, natural stone, resin coatings or timber floors. Larsen SLC self levelling screed is also suitable for use over underfloor heating.

SLC 1550 is perfect as a flooring underlayment for schools, hospitals, factories, airports, offices, houses and office buildings, Larsen Professional SLC 1500 is a rapid set screed which can accept foot traffic in as little 2 hours.

Restrictions

We recommend that all work should be carried out to current best practice, trade body advice and BS8204. Larsen SLC 1500 Commercial is not suitable for industrial use, it should not be applied to flexible surfaces and cannot be used as a final wearing surface. Prof SLC 1500 Commercial is suitable for use over underfloor heating systems. Room and substrate temperatures should be above 5°C during application. Drying times are dependent on screed thickness and site conditions. Always test moisture contents before laying impervious floor coverings. Freshly laid screed should be protected from rapid drying as result of draughts, strong direct sunlight or similar.

Technical Information:

  • Full Pallet Deal: 39 x 25KG bags
  • Self-Levelling
  • Up to 25mm in a single application (4-25mm when pumped) 
  • Fast drying – apply moisture sensitive finishes after 24 hours
  • Protein-free
  • Foot traffic in 2 - 4 hours | Full Track & Coverings after 1-2 days
  • BS EN 13813 CT – C30 – F7
  • Packaging: 25kg multi-wall, extra strength paper bags
  • Storage: Store in unopened containers away from damp & drafts
  • Shelf Life: 6 months in unopened packaging
  • Coverage: 25 kg will cover 1m2 @ 12.5mm
  • Do not use on flexible surfaces and cannot be used as a final wearing surface.

How do I prepare to apply Larsen SLC 1550?

The building should be weather-tight prior to the application of any screed materials. The roof, external doors and windows must be in place, closed or covered, and they must be taped to prevent any draughts. The substrate must be structurally sound concrete or screed and must be thoroughly clean, dry, and free from dirt, debris or dust which may impair adhesion. Suitable mechanical preparation of substrate may be required. Air and substrate temperatures must be greater than 5oC. Relative Humidity value of the floor must be less than 75% when moisture sensitive finishes are to be laid onto the SLC 1500.

Do I need to prime or use a DPM ahead of applying SLC 1550?

Normal concrete and screed requires priming with an acrylic primer, diluted 1:1 with clean water. For particularly porous concrete and screed, we recommend priming with an acrylic primer diluted 1:1 with clean water followed by another coat of acrylic primer applied neat. Please note that if the relative humidity value of the floor is greater than 75%, Larsen DPM should be used. Apply two coats of DPM as directed with the dry sand (0.7 -1.2mm) scatter into the wet second coat at a rate of 2 kg/m2 (with the excess removed by vacuuming). For thickness of >25mm or heavy traffic areas, ring us for advice.

How do I mix Larsen SLC 1550? 

  1. Simply add 4.75 to 5.25 litres of clean water to a bucket
  2. Add a 25kg bag of SLC 1550
  3. Mix with a heavy duty drill and paddle for 1-2 minutes or with a suitable continuous mixer-pump.

Important: Do not add more than 5.25 litres of water for each 25KG bag, as excess water will cause a loss of strength in the product.

How do I apply Larsen SLC 1550?

Once the required consistency of SLC 1550 is achieved, pour or pump apply the mixed product over the sub-floor. SLC 1500 will self-level into smooth finish. Where necessary, release any air bubbles in the product with a trowel or spiked roller, this must be carried out within 5 – 10 minutes of application. SLC 1500 can be applied up to 25mm (min 4mm when pumping). For thickness of >25mm, consult us for advice.

Once applied the screed must be protected from draughts for the the first 6 hours to allow the SLC 1550 to cure, we always advise taping up doorways and windows with polythene. After the 6 hour period, then ensure the room has sufficient ventilation to allow the screed to fully dry out. SLC 1500 can receive foot traffic after 2 - 4 hours, and floor coverings can be installed after 24 - 48 hours depending on thickness of SLC 1500, substrate and site conditions. If any trowel marks remain, remove with a wet trowel after 1-1½hrs.

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