Polyurethane Resin Floor Screed 30kg Pack
dmd Polyurethane Floor Screed is a water based polyurethane resin screed designed to provide excellent heavy duty usage with resistance to thermal shock, abrasion and chemical attack in aggressive industrial environments.
dmd Polyurethane Floor Screed surfaces are stable to steam cleaning and resistant to boiling water and process liquids up to 100 degrees centigrade when applied at 9mm nominal thickness. dmd Polyurethane Floor Screed provides a matt, textured surface that is seamless and has good anti-slip properties.
- High chemical resistance
- Resistant to hot water and steam cleaning
- Anti-slip finish
- Matt finish
- Extremely hard wearing
Where To Use:
dmd Polyurethane Floor Screed can be used in all areas where high wear, combined with high chemical resistant floors are required, which are seamless and easy to maintain including:
- Food manufacture and processing
- Chemical plant processing
- Medical and veterinary practice
- Dairies and Animal Husbandry
- Heavy duty plant and traffic areas
To achieve the best performance from dmd Polyurethane Floor Screed, correct surface preparation is essential. Substrates must be clean, sound, dry and free of surface laitance with a minimum strength of 25N/mm2.
All surfaces must be prepared by vacuum blasting or mechanical abrasion. dmd Polyurethane Floor Screed may be applied to substrates with a surface temperature in the range of 5-20oC and a relative humidity < 90% RH , with a minimum air temperature of 8oC and no condensation. Do not pre-warm this product as working times will be substantially reduced if materials are warm.
To ensure the maximum bond is achieved, grooves must be cut into the perimeter of the subfloor, typically 20mm deep by 8mm wide. These should be inset approximately 150mm from, and running parallel with the walls and adjacent to any doorways, plinths etc. including any finished edge, i.e. both sides of a day work joint. The groove must have a neat square edge and the dmd Polyurethane Floor Screed laid to the full depth forming a perimeter anchorage.
Surfaces should be primed with a prime at an average rate of 4 sq.m. per kg. This is left to cure, usually overnight. If the relative humidity of the concrete is greater than 75% RH . A Damp shield should be applied at 4 sq.m. per kg. allow to cure for 8-12 hours @ 20oC.
When the primed surface is tack free dmd Polyurethane Floor Screed should be applied at the required rate as soon after mixing as possible. (Delay can result in variation in surface finish, colour and add to application problems.)
Mix the coloured base component to an even consistency, ensuring the re-dispersion of any settled pigment, Thoroughly scrape the contents of the base and hardener components into the same container and mix thoroughly for one minute. Pour the combined base and hardener into a rotary drum mixer and add the aggregate component steadily, until a homogeneous mix of the three components is achieved. Apply to pre-primed areas and level between battens as necessary with a steel float, alternatively a sledge can be used set at the required thickness and again finished with a steel float. Where ease of cleaning is very important alongside slip resistance the final finish can be smoothed by back rolling with a short nap roller. A single pass with the weight of the roller is usually sufficient.
dmd Polyurethane Floor Screed units should be applied consistently with mixes from the same batch used consecutively where adjacent areas are being laid.
NB: Cure times are extended at low temperatures.
Slip Resistance: Dry> 50, low slip potential method BS7976 pt 1-3 2002: Wet> 45, low slip potential
Thickness (dry): 6mm to 9mm
Pack Size: 30kg
Pack Contents: 1 x Base - 1 X Hardener - 1 x Aggregate Bag
Shelf Life: 12 months (base & Hardener ) 3 moths (Aggregates)
Storage: Keep out of Direct sunlight & in a dry place not below 15 c
Drying Times & Coveragrage at 20 c:
Coverage Rate: 30kg will cover 2.5 sq m @ 6mm or 1.69 sq m @ 9mm
Pot Life: 15 minutes (from mixing)
Recoat Time: N/A
Light Traffic: 12-16 Hours
Full Traffic: 48 Hours
Full Chemical Cure: 3-5 Days