Cement based self-leveling compound, KDO425
Cement Self-leveling compound KDO 425: It is a kind of dry-mixed powdery material includes special cement, redispersible polymer powder, cellulose ethers and other active ingredient, is a high-tech environment -friendly product with advanced technology and formula refined. With fast hardening, people can walk on it after 4-5 hours, and 24 hours later can do surface construction, it’s more convenient for workers to operate than traditional artificial leveling.
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Items
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Index
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Flowability (mm)
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Initial flowability
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≥135
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20min flowability
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≥135
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Tensile adhesive strength (Mpa)
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≥1.0
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Wear resistance (g)
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≤0.50
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Dimensional change rate (%)
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-0.15~+0.15
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24h compressive strength (Mpa)
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≥7.7
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24h anti-bending strength (Mpa)
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≥2.4
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28 days compressive strength (Mpa)
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≥20.4
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28 days anti-bending strength (Mpa)
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≥4.3
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Construction method
The substrate must be clean, dry firm and no any residue, then use KDO special interface agent to paint the base plane.
After about 2-6 hours, mixed with water before construction, be sure to strictly self-leveling cement: water 25:6 ~ 6.5kg mixed. First 6 ~ 6.5kg of water into the bucket, then pour the product side down while stirring until a homogeneous mixture, lay up 1 minute, then stir once again briefly.
Pour the mixture into the construction area, a zigzag rake to move to a desired uniform thickness (thickness constructability 1-4mm).
Before initial setting, use defoaming roller to exclude air which mixed in before.
Attentions
No excess water or it may decrease the compressive strength.
No strong wind and sun within 48 hours after construction.
For more details please contact Kundu Chemicals
