Ronacrete 21 day overlay                                                                                         

This screed can receive foot traffic after 24 hours and floor coverings such as Vinyl, Tiles and Carpet after 21 days at a screed thickness of 75mm. It reaches a compressive strength of 35N/mm2 after 28 days.

Minimum recommended thickness

• 65mm – Floating Construction
• 50mm – Unbonded
• 35mm – Bonded

Knopp Accelerator 10                                                                                                  

Although this screed is recommended to wait 36 hours before being walked on it can receive coverings as early as 14 days and due to its increased flexibility it can be installed at a reduced thickness to most other screeds. After 28 days the screed will have a compressive strength of 25N/mm2.

Minimum recommended thickness

• 40mm – Floating Construction
• 30mm – Unbonded
• 20mm – Bonded

Mapei Topcem                                                                                                             

This is a special pre bagged polymer modified screed which can receive foot traffic after only 12 hours. It can be tiled on after 24 hours, receive natural stone after 2 days and wooden flooring after only 4 days. After only 7 days it will reach 22N/mm2 and 35N/mm2 after 28 days.

Minimum recommended thickness

• 55mm – Floating Construction
• 35mm – Unbonded
• 10mm – Bonded

Ardex A35

This rapid drying cement can be supplied as either 1:4 or 1:5 depending on your site requirements but due to its accelerated drying properties it can only be batched in our forced action mixer and is not recommended to use with a screed pump. It can be walked on after only 3 hours, and receive floor coverings after only 24 hours. It reaches a compressive strength of 40N/mm2 after 28 days.

Minimum recommended thickness

• 65mm – Floating Construction
• 50mm – Unbonded
• 15mm – Bonded

Ronacrete Ronafix SBR

This polymer modified wearing screed reaches an abrasion resistance of AR2 medium duty and is generally used in workshops, warehouses and garages. It can be walked on after 24 hours, and receive floor coverings after 10 days at a screed thickness of 50mm.

Minimum recommended thickness  (max. 50mm)

• 35mm – Floating Construction
• 35mm – Unbonded
• 10mm – Bonded

Isocrete Isopol SBR 

Also acheiving an abrasion resistance of AR2  medium duty, this screed is able to be installed over 50mm in a single application . It can also be walked on after 24 hours, and receive floor coverings approximatly 10 days. After 28 days this screed will reach a compressive strength of 45N/mm2.

Minimum recommended thickness

• 65mm – Floating Construction
• 50mm – Unbonded
• 10mm – Bonded

Normally used in areas that require more strength than traditional sand & cement screeds, it is made by adjusting the mix ratio by adding either 10mm aggregates or 6mm granite chippings. The ratio is roughly  1:3:1 (reducing sharp sand and adding aggregates in place).

Minimum recommended thickness

• 65mm – Floating Construction
• 50mm – Unbonded
• 25mm – Bonded

Lytag

When Lytag aggregates are used in appropriate screed systems, weights will be reduced by around 50% over normal sand: cement screeds of the same thickness.There is no limitations for the thickness of the  base coat enabling levels or falls to be formed more easily. This product is fast drying due to the passage of air through the no-fines base coat and thinner topcoats, typically 15mm.Ideal for Roof screeds or weight limitation areas, it is low shrinkage so large bays can be cast in one operation.

Minimum recommended thickness (including 15mm topping)

• 65mm – Floating Construction
• 65mm – Unbonded
• 40mm – Bonded