UltraFloor Level It Base Heavy Duty Smoothing Underlayment 25kg

UltraFloor Level It Base Heavy Duty Smoothing Underlayment 25kg Description

Level It Base

Rapid Setting Smoothing Underlayment

• High compressive strength
• Ideal for use with Level It Top
• Pump or trowel applied
• Walk on: 3 hours
• Moisture tolerant
• Coverage: approx 3m² at 5mm
• 5-50mm thickness
• Working time 30-40 minutes
• Internal floors
• Size: 25kg

Product Description

Ultra Floor Level It Base is a rapid setting and hardening, high strength, single part, cementitious smoothing underlayment incorporating recycled raw materials. Level It Base may be mixed up and applied as single units and is especially suited to larger projects where it is deal for pumping applications and can be applied up to depths of 50mm. Level It Base is suitable for use in industrial , commercial and domestic flooring installations.

Product Uses

When mixed with clean cold water, Level It Base is a product that can be trowel or pump applied, to smooth and level, sound and strong internal subfloors prior to applications of Level It TOP (see relevant technical data sheet sheet) where a wearing surface is required, and prior to applications of Ultra Floor smoothing underlayments when a finished decorative floor covering is being installed. In some applications Level It Base can be used as the finished floor prior to application of high build resin coating (consult Ultra Floor technical department).

It is a protein free formulation so maybe used in biologically sensitive areas and can be applied to most cementitious subfloors including those incorporating fully commissioned warm water underfloor heating systems. It may also be used over fully cured and dry calcium sulphate screeds. 

Level It Base should be applied at a minimum application thickness of 5mm and can be applied up to a maximum of 50mm.

Product Application

Level It Base should not be applied on projects unless it can be guaranteed that subfloor and air temperatures do not drop below 6o C during application and throughout curing (nominally 7 days minimum). The use of radiant heaters is recommended to attain ideal application temperatures. 

Do not use fuel burning space heaters.

Light ventilation is recommended, particularly in enclosed areas. Avoid strong draughts as this can cause localised rapid drying and may result in surface crazing.

Level It Base can be applied both by hand mixing of individual units or by continuous pumping. Do not use warm water as this will reduce the products working time and may result in shrinkage. 

For hand mixing application pour 4.25 litres of clean cold water into a clean oversized bucket (20+ Litres), and then gradually add the powder whilst mixing continually with an electric drill with power whisk. When all the powder is added mix for a further 2 mins, keeping the whisk below the surface (to minimise air entrapment), until a lump free creamy material is attained. The product can then be poured onto the floor and, using a smooth steel trowel, spread out to the desired application depth. When applying at thicker sections a long handled float or dapple bar is preferred. A spiked roller can be used whilst the product is still fluid to minimise air entrapment and “marry” wet edges together to give a uniform finish. The depth of spike must be a minimum of 30% longer than the application depth of product otherwise it will not be able to rotate in the product. This is particularly important in deeper applications (15mm +). 

For pump application follow pump manufacturer's recommended set up guidelines. Ensure the correct water ratio is used by carrying out a flow tube test at the beginning of the project and at regular intervals throughout (ideally once per pallet) to check that ideal flow is being maintained. We recommend the logging of flow test results, site conditions, batch numbers and pump equipment for future reference, a template for which is available from ultra-floor.co.uk. 

When using an Ultra Floor flow tube of capacity 200ml then a flow rate of 250 to 280 mm is acceptable. When using other flow tubes we recommend that a single unit be mixed by hand as above and the flow rate of the mixed unit be assessed with the specific flow tube.

For large projects it is recommended that the area be sectioned off into manageable sized bays where a wet edge can be maintained throughout the pumping process.