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Isocrete Screedfast is a specially formulated cement giving a high early strength and very rapid drying screed. It is used in different mix designs with water and 0/4 (MP) grade sands to provide Screedfast 1000 and Screedfast 2000.

Mix:

  • Screedfast 1000: 1:4 mix (by volume) of Screedfast cement and 0/4 mm (MP) category 1 sand. When laid Screedfast 1000 will give a Category B screed and will dry to 75% RH in 3 to 4 days at 20°C.
  • Screedfast 2000: 1:3 mix (by volume) of Screedfast cement and 0/4 mm (MP) category 1 sand. When laid Screedfast 2000 will give a Category A screed and will dry to 75% RH in 24 hours at 20°C.

Screed thickness:

  • Bonded: Minimum 15 mm laid bonded with Isocrete M-Bond Extra epoxy resin bonding agent. Minimum 30 mm laid onto Isocrete Polymer 70 primer and grout.
  • Floating: Minimum 75 mm (65 mm domestic).
  • Unbonded: Minimum 50 mm.

Options

Bonding agents:

  • Isocrete M-Bond: Two pack, single coat, solvent free epoxy bonding agent for concrete or screeds. Colour, red. Application, 0.45 kg/m².
  • Isocrete M-Bond Extra: Two pack, two coat, solvent free epoxy damp proof membrane for concrete and, additionally, a bonding agent for concrete or screeds. Colour, first coat red (application, 0.45 kg/m²), second coat black (application, 0.35 kg/m²).
  • Isocrete Polymer 70: Terpolymer modified PVA, applied first as a substrate primer (0.05 kg/m²), then as a bonding agent in a cement grout (application, 0.05 kg polymer/m²).

Reinforcement:

  • Isocrete PP Fibres: High performance crimped monofilament 12 mm long polypropylene fibres added to mix as crack inhibitor. PP Fibres are intended for use in the Isocrete products K-Screed, Fast-K, Screedfast, Isogran, Isopol SBR and other polymer modified and conventional cementitious screeds and toppings.
  • Steel fabric: BS 4483, ref. D49.

NBS Specification

NBS Create logo
This product is associated with the following NBS Create clause:
45-55-10/380 Quick drying levelling screed mix

NBS Specification

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This product is associated with the following NBS clauses:

Product specification

An important note about specifying

Manufacturer

Name:

Flowcrete UK Ltd

Tel:

+44 (0)1270 753000

Product reference

Isocrete Screedfast System

Bonding agent

[None]
[Isocrete M-Bond epoxy resin]
[Isocrete M-Bond Extra epoxy resin]
-
Two coat system providing damp proof membrane and bonding coat.
[Isocrete Polymer 70 primer and grout]
[As drawing ___]

Screedfast

 - Type:
[Screedfast 1000]
[Screedfast 2000]
[Standard]
[Heavy duty]
[As drawing ___]
 
 - Reinforcement:
[None]
[Isocrete PP fibres throughout mix, with strip of D49 steel fabric reinforcement at day joints]
[D49 steel fabric]
[As drawing ___]
 

Manufacturer details

The Flooring Technology Centre,
Booth Lane,
Moston,
Sandbach,
Cheshire, CW11 3QF
Tel +44 (0)1270 753000
Fax +44 (0)1270 753333
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