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  1. paul

    How to increase the strength of leveling wall putty

    Is your paint flat or real stone paint? Flat painted, can not add sand; real stone paint can add sand, but the river sand is too thick , must be used fine quartz sand. The external walls are also added caustic lime to prevent surface picking, you try it! But caustic lime must be very good, and...
  2. paul

    How to increase the strength of leveling wall putty

    This formula must be surface picking! Suggested cement 500kg, Ground Calcium Carbonate 500kg, Hydroxypropyl Methyl Cellulose 4kg, wood fiber 2kg, Redispersible polymer powder 15kg/20kg/25kg three level, you try it! If you make real stone paint, the formula can be adjusted to cement 350kg...
  3. paul

    Help, the interior polished wall putty no gloss

    Check the quality of calcium hydroxide, must be 400 mesh, heavy calcium powder 350 mesh, if your calcium hydroxide is good, with 200 kg enough. Delete air entraining agent(HPS).
  4. paul

    What is the difference between the C1T and C2T grades in the tiles adhesive?

    Mainly performance differences C1 bond strength ≥ 0.5Mpa C2 bond strength ≥ 1.0Mpa
  5. paul

    Add 10kg RDP or 20kg RDP into 1mt tile adhesive, Feeling no difference?

    10KG RDP and 20KG RDP difference is in the pullout force, PVA can improve the initial adhesion, it has a certain viscosity, such as your 10 kg RDP can be replaced with 2 kg PVA with 8 kg RDP, 20 kg RDP content is no need to add PVA.
  6. paul

    How about this self-leveling mortar formula?

    This recipe is not bad The proportion of cementitious material can be adjusted, the amount of Ordinary Portland Cement less, add more high-aluminum cement, if 60 kg of high-alumina cement, 24-hour strength and polished estimated more difficult. Gypsum is too small, I usually use 40 to 50 kg...
  7. paul

    What are gypsum-bas ed crack fillers?

    Gypsum crack fillers are universal joint sealants used for jointing, caulking, leveling and bonding between gypsum boards, ready-mix materials made by certain production processes of inorganic or organic cementitious materials, fillers and various chemical admixtures. Finished products of...
  8. paul

    The feasibility of using this formula for Porcelain Tiles?

    Do not use the emulsion as the interface agent If you use the emulsion+cement made of cement mortar as interface agent, and then paste, you can
  9. paul

    (interior) Waterproof polished wall putty formula

    If it is high purity of calcium hydroxide, it is basically feasible. But if the calcium hydroxide content is too high will affect the construction problems.
  10. paul


  11. paul

    good day

    good day
  12. paul

    Have a nice day!

    Have a nice day!
  13. paul

    waterproof putty formulations

    Specifications of HPMC seems to be good but better if DS is specified. What we need is good workability and water retention on 0.3-0.4% use with 10%Cement and 85-90% inert on less than 250 mesh size. How much RDP is needed to achieve min 1.2 N/mm2 strength on 2 days and 7 days. Specifications...
  14. paul

    Recent Developments in Dry Mortar Technology in Europe

    Recent Developments in Dry Mortar Technology in Europe Prof. Dr. Johann Plank Chair for Construction Chemicals Institute for Inorganic Chemistry TU München Lichtenbergstr. 4 85747 Garching Germany 1. Introduction Over the last years, the global dry-mix mortar production is increasing very fast...
  15. paul

    TPO Waterproofing Systems using Novel Plastomers and Elastomers Stefan Ultsch – DOW Europe GmbH

    TPO Waterproofing Systems using Novel Plastomers and Elastomers Stefan Ultsch – DOW Europe GmbH
  16. paul

    Why should thin-layer masonry mortar be developed?

    The thickness of masonry mortar joint is generally 8-12mm, mainly determined by the dimensional accuracy of the block material. The lower the dimensional accuracy of the block material is, the thicker the mortar joints will be required. In general, the strength of mortar joint is lower than that...