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In this section, you can find answers to some frequently asked questions. If your question is not listed here, please click “Ask a Question.”
FAQ
Construction Chemicals
I need a suitable defoamer for one of our asphalt emulsion-based construction products.
Application:Construction Chemicals
Reply: We recommend using Tech-3901 as the appropriate defoamer.
I need to improve the surface and flow properties of a three-component polyurethane self-leveling system. The liquid defoamer I’m currently using in the polyol appears to be highly incompatible. More
Application:Construction Chemicals
Reply: Highly effective defoamers often cause phase separation in polyurethane adhesive systems. Unfortunately, defoamers with better compatibility do not sufficiently reduce air content, resulting in reduced flowability. It is recommended to use the liquid defoamer Tech-462F in polyols.
How can the flowability of a three-component epoxy grout formulation be improved?
Application:Construction Chemicals
Reply:
In addition to the binder used, flow characteristics may depend on the wettability of the aggregates/fillers, but also on the air content. We recommend using Tech-5076 as a wetting and dispersing additive, which can further improve the system’s flowability.
The mortar we produce contains: calcium carbonate filler + acrylic dispersion + water. This material is cast into silicone molds. I need an additive to improve the system’s flowability.
Application:Construction Chemicals
Reply:
Tech-6199 is a VOC-free wetting and dispersing agent used in water-based coatings and adhesives, as well as in pigment concentrates containing organic and inorganic pigments and fillers.
Can you recommend any waterproofing agents suitable for cement mortar?
Application:Construction Chemicals
Reply:
Tech-29801-2 is a silane-silicone hybrid emulsion that can be used as a waterproofing agent for cement mortar. It can also be diluted and applied directly to the surfaces of substrates such as cement and stone, or added as an additive to water-based coatings to provide excellent waterproofing performance.