As Larsen marks its 50th year in business in 2025, the company continues to build on a strong legacy of innovation and technical expertise across Ireland and the UK. The technical team’s in-depth knowledge of flooring solutions, combined with a commitment to outstanding customer service, has made Larsen a go-to name in the industry.
From floor preparation and priming to self-levelling compounds, latex screeds and repair products, the Larsen range covers every stage of the job. In this article, we spotlight a selection of our best-selling floor levellers – proven performers that professionals rely on every day.
SLC 1550 FLEX – DEEP FILL
The number one best seller, this deep-fill universal renovation screed is a fast-drying underlayment, which is reinforced by fibres to achieve both strength and flexibility to your floor. As a one-part self-levelling floor compound, the SLC 1550 FLEX fibre reinforced screed can be filled to a maximum depth of 50mm and is suitable for use with underfloor heating. The material can be simply poured over the floor or pumped using a hose. Ideal for use in fast track domestic and commercial applications, such as offices, schools, hospitals, and airports. With a 2-hour set time, this screed offers the perfect surface for receiving resilient floor finishes, including carpet, ceramic tiles, vinyl, natural stone, and resin coatings.
SLC 100 – CONCRETE, SAND & CEMENT SCREEDS
If you’re looking for a standard self levelling compound with no extra bells and whistles, then the SLC 100 is right up your street! As a 1-part cementitious floor smoothing underlayment, this product is great for levelling most common subfloors, such as sand / cement screeds and concrete. The SLC 100 can be reach depths from feather to 6mm and accepts foot traffic in just 4 hours. The perfect self leveller for your everyday flooring project!
SLC 1500 – SUPER FLOW
What makes the SLC 1500 so special? 1. Super Flow, 2. Great Finish, 3. Suitable for Lower Levels 0-5mm. This product is a one-part self-levelling compound, which can be hand or pump-applied. As a cement-based underlayment, it can be used in fast track domestic and commercial situations where finishes need to be applied quickly. SLC 1500 is a fast-drying universal commercial screed that can accept foot traffic in only 2-4 hours. Ideal for use over underfloor heating, as well as offices, dwellings, schools, hospitals, airports etc.
SLC 3015 – FAST TRACK SETTING
When time is a factor and you need to move quickly to finish the flooring project, then look no further than this product! As an ultra-rapid setting self-levelling screed and smoothing underlayment, the SLC 3015 FAST can receive light foot traffic after only 30 minutes and covering after 1 hour! Using FiberFlex™ Reinforced technology, this protein-free, high-quality product offers the strength required for high traffic domestic and commercial areas. This leveller can also be filled up to 15mm and is suitable for underfloor heating.
LLC 200 – 2 PART LATEX LEVELLING COMPOUND
LARTEX NA – 2 PART ULTIMATE LATEX
As the newest product to hit the flooring market last year, the LLC 200 is a 2-part latex flooring screed expertly designed for its excellent flow and levelling characteristics. With a maximum fill depth of 10mm, this professional latex screed is moisture tolerant and can receive foot traffic in 2-3 hours. This product can be used to prepare most rigid surfaces prior to the installation of floor coverings, such as sand / cement screed, concrete, flooring grade asphalt and correctly prepared wooden floors. With protein-free and eco reduced carbon properties, the LLC 200 is suitable for underfloor heating and biologically sensitive areas.
If you’re looking for a high-performance latex liquid screed with superior flow and rapid setting, then the Lartex NA is the perfect partner for your flooring project. As a 2-part, protein-free latex levelling compound, this product can be filled to a maximum depth of 10mm and receive foot traffic in 1-2 hours. Suitable for use on underfloor heating, over most old adhesive residues and onto most substrates without the need for priming. Lartex NA latex floor screed is known for its tolerance to moisture, excellent adhesion, and high flexibility.
For further information and directions of use, please refer to the product packaging and technical data sheet. For product videos, step by step guides and FAQs, please explore the full range of Larsen flooring products now.
