Core Advantages of Silica in UV Formulations
Viscosity Control
Achieve a dead-matte finish without rheological instability. We utilize low oil absorption silica for high solid coatings, allowing for higher addition rates without causing viscosity drift or poor leveling in 100% UV systems.
Instant Curing
Zero impact on throughput. Our nano-silica for photoinitiator systems is engineered with an optimized refractive index, ensuring maximum UV energy penetration for deep-layer curing at high line speeds.
Shrinkage Adaptability
Prevent surface defects. UV resins undergo volume contraction during polymerization; our silica particles feature a flexible gel-method porosity that adapts to film shrinkage, eliminating micro-cracking.
Extreme Wear Resistance
Beyond matting. As a powerful paint gloss reduction agent, our silica also acts as a structural reinforcer, dramatically increasing the scratch and Taber abrasion resistance of heavy-traffic UV flooring.
Summary
In conclusion, optimizing 100% solid UV coatings requires a specialized matting agent that balances low oil absorption with high UV transparency. The GMATT UV Series ensures that formulators can achieve precise gloss reduction, rapid line speeds, and superior film durability without the risks of micro-cracking or viscosity spikes.
Pair with SEMITI TiO2 for uv coatings
Technical FAQ
UV Curing Optimization & Rheology Support.
+Why is low oil absorption critical for 100% solid UV coatings?
In solvent-free systems, high oil absorption silica can rapidly “soak up” monomers, leading to an uncontrollable viscosity spike. The GMATT UV Series features controlled oil absorption to achieve high matting efficiency while maintaining a workable viscosity for roller and spray applications.
+Does adding matting agent slow down the UV curing line speed?
Standard fillers scatter light and block UV penetration. Our UV coating matting agent is designed to be transparent to UV radiation, ensuring that even at high dosages, the coating achieves full cross-linking density without reducing line speed.
+How to prevent micro-cracking caused by UV film shrinkage?
UV resins contract significantly during curing. The unique internal pore structure of the GMATT UV Series acts as a stress-buffer, adapting to film shrinkage and preventing the internal tension that leads to micro-cracking and loss of adhesion.
+How can I improve the scratch resistance of UV wood flooring?
By incorporating our specially treated silica, you create a reinforced composite surface. The GMATT UV Series increases the surface hardness and significantly improves taber abrasion resistance, making it ideal for heavy-traffic commercial flooring.
+Is the GMATT UV Series compatible with all photoinitiator types?
Yes. Our synthetic silica is chemically inert and high-purity (≥99.0% SiO₂). It does not interfere with photoinitiator stability or cause yellowing, making it compatible with both radical and cationic photoinitiator systems.
Recommended UV Solution
For 100% solid UV flooring and PVC topcoats, we recommend the GMATT UV Series (U700/U750/U800) for superior anti-settling and recoatability.
SEMITECH matrix · co-purchase