For slice infill 3D models, the best resins are low-viscosity, fast-curing UV resins with strong layer adhesion—they balance smooth flow into infill gaps, quick curing to avoid bonding issues, and structural integrity to prevent delamination.
- **Low viscosity**: Ensures resin evenly fills small infill spaces without pooling or empty spots. - **Fast curing**: Minimizes layer shifting before hardening, critical for precise slice patterns like honeycomb or grid. - **Strong adhesion**: Prevents splits in structural infill, keeping your model stable.
Water-washable or standard tough UV resins are great for their mix of printability and strength. If testing slice infill, start with a low-viscosity resin and tweak exposure time slightly for dense infill. Water-washable options add ease of post-processing too.