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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
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We often encounter issues with settling or sagging in water-based matte or tinted wood finishes. How can we improve the formulation?
Application:Defoaming
Reply:
The anti-settling or anti-sagging properties of water-based matte or tinted wood coatings can be achieved by using associative low-shear thickeners. These products produce pseudoplastic flow characteristics, which help keep matting agents or pigments suspended in the liquid medium. For water-based wood coatings, we highly recommend Tech-9042, with a usage rate of 0.5–2.0% of the total formulation (for anti-settling) and 2.0–5.0% (for anti-sagging).
We have developed a wide range of clear and tinted water-based wood coatings, and we are currently looking for a versatile rheological additive to adjust the viscosity in the container.
Application:Defoaming
Reply:
Tech-9048 is an associative medium-shear thickener recommended for adjusting the in-can viscosity of clear and pigmented water-based wood coatings. The recommended usage is 0.5–2.0% of the total formulation based on the product’s supply specification.
We tested various formulations of water-based floor paint, but their workability and leveling properties were poor when applied with a roller. We tried many different rheological additives, but saw no
Application:Defoaming
Reply:
Association-type high-shear thickeners can impart Newtonian flow behavior to water-based coatings. These products improve application viscosity and enhance leveling. To adjust the high-shear properties of water-based wood coatings, we highly recommend Tech-9040N, with a usage rate of 0.5–2.0% of the total formulation based on the supplied specification.
I am currently looking for a suitable additive to disperse matting agents for use in various solvent-based wood coatings. Do you have any specific product recommendations?
Application:Defoaming
Reply:
Tech-5103 significantly improves the dispersion of untreated or treated silica-based matting agents in solvent-based two-component polyurethane, nitrocellulose, alkyd, acid-curing, and radiation-curing systems. The recommended additive dosage is 5.0–10.0% (solid-to-solid) of the matting agent.
A completely matte, solvent-free, radiation-curable coating that is applied to the substrate using a roller coater. I am looking for an effective defoamer for initial defoaming, and especially for def
Application:Defoaming
Reply:
We recommend Tech-49203 for this specific application. This defoamer provides excellent defoaming performance for solvent-free, radiation-curable coatings applied via a roller coater at a concentration of 0.2–0.5% (based on the total formulation).
What types of additives are used to reduce dynamic surface tension?
Application:Anti-settling and flow-modifying additives
Reply: Tech-264 and Tech-267 are highly effective at reducing dynamic surface tension and are particularly suitable for wetting substrates during high-speed printing.
What surfactants or combinations of surfactants would you recommend to improve the wetting and penetration properties of water-based varnishes and paper coatings?
Application:Anti-settling and flow-modifying additives
Reply:
Tech-2846, Tech-2033, and Tech-2733 are silicone-based surfactants that improve the wetting properties of water-based inks and varnishes on various substrates. For silicone-free formulations, we recommend Tech-181W and Tech-182W.
How can the wetting and leveling of acrylic UV inks on aluminum oxide substrates be improved?
Application:Anti-settling and flow-modifying additives
Reply:
UV inks can achieve good substrate wetting with both silicone-based and non-silicone additives: Silicone additives: Tech-2033, Tech-2733; non-silicone additives: Tech-181W, Tech-182W.
