QUICSEAL 532HD Fast Set Screed is a single component rapid-setting, polymer-modified cementitious mortar consisting of a blend of powders and graded aggregates and special additives to achieve rapid strength gain.
When mixed with water, QUICSEAL 532HD becomes a high strength, semi-flowable mortar and is easily applied by trowel.
The cured mortar is durable and weather resistant and has excellent adhesion to concrete substrates. Its polymer modification provides good resistance to water, abrasion and impact.
QUICSEAL 532HD is ideal for use in heavily vehicular trafficked areas where a rapid return to service in 4 hours is critical.
QUICSEAL 532HD is ideal for forming new reinstatement mortar on new or existing slabs in interior or exterior repair where fast drying high strength mortars or screeds are required to receive high volume pedestrian or vehicular traffic in a short time.
Discharge the mix and spread with a trowel to the required thickness.
A minimum thickness of 10mm is recommended. For areas where thickness is above 40mm, it is desirable to add clean, washed, 10mm -20mm aggregate to the mix. The quantity of aggregate to be used will depend upon particle size and grading, but typically 10 to12kg of 10 – 20mm aggregate may be added to each 25kg bag without significant loss of workability. Consult QUICSEAL technical department for further information.
In between 2 casts, it is recommended that steel rods (200 –300mm long and 4-7mm in diameter) be inserted into the finished edge of the screed. They should be 20 – 30 mm apart to avoid cracking when work is resumed.
Avoid direct sunlight. Substrate should not be hot during placing. QUICSEAL 532 HD should be struck off to the correct level an finished with steel trowel to fully close the surface. A textured surface can be achieve using a suitable roller or brush. The completed surface should not be overworked.