Efficiency-enhancing tool: 4-in-1 Sander and Polisher
Resin crafts are often marred by imperfections such as bubbles, burrs, and scratches, which compromise their perfection. However, the market lacks specialized polishing tools, leaving artists to make do with cumbersome industrial equipment.
LET'S RESIN deeply understands the needs of resin artists. After 10 months of meticulous design and preparation—with repeated revisions and overhauls of plans—we finally created this compact, efficient polishing machine, specifically engineered for resin shaping. It makes detailing work easier and more professional.
Advantages and Limitations of 4-in-1 Sander and Polisher
Advantages:
4-in-1 Design: One Machine Replaces Four
More cost-effective, as it functions equivalently to 4 machines: handheld sander, desktop sander, cordless electric grinder, and bench polisher. It saves desktop space, makes creation more efficient, and helps you save money, worry, and effort.


Compact and Lightweight Design
Boasting an ergonomic design, it caters to the strength and aesthetic preferences of female users. The lightweight body, paired with a shock-absorbing sponge pad, allows for easy one-handed operation with precise control. When placed on a storage table for operation, it frees up both hands, relieving arm soreness caused by manual grinding and making it effortless to handle large volumes of grinding tasks.

Dual Power Modes: Portable or Unlimited Power
Equipped with a battery mode featuring two 2000mAh high-capacity power batteries, it offers wireless portability for on-the-go use. For extended sessions, the plug-in mode with an adapter provides continuous power, perfectly meeting the demands of bulk creation.


Intelligent 3-Speed Adjustment: Clear at a Glance
Three speed levels for free switching—low speed for precise detailing and high speed for efficient large-area processing. The smart large screen displays real-time battery level, speed, and working mode, making operation intuitive and hassle-free. Every detail is fully under your control.


Wide Range of Applications
Beyond resin polishing, it can be used for metal rust removal, tool sharpening, and partial polishing of paint surfaces; it is also suitable for Gundam model making. Additionally, it works well for polishing jewelry, gemstones, pendants, necklaces, bracelets, and many other decorative items.

Limitations
This product is more suitable for small-sized resin works. If used for polishing large tables, it will be relatively time-consuming.
Step - by - Step Operation Procedure
1.Workspace & Material Preparation
Gloves, N95 mask, apron, goggles, spray bottle, dust-proof silicone mat, towel, and polishing paste.
2. Environment Setup
- Ventilation Conditions: Reduce dust and harmful gases.
- Ground and Fixation Conditions: Stable and non-slip.
- Power Supply and Environmental Safety: Prevent electric shock and interference.
- Avoid humid environments and dust-sensitive areas such as electronic workshops, bedrooms, and kitchens.


| Steps | Production Process |
|---|---|
| 1 | Select sandpaper with an appropriate grit size. |
| 2 | Choose a grinding method (2" & 3" sanding discs, 3" grinding wheel, 3" cotton wheel). |
| 3 | Wet the sandpaper, which helps reduce dust in the air. |
| 4 | Grind sequentially from coarse to fine sandpaper (the higher the grit size, the finer the sandpaper). |
| 5 | Clean and dry the sanded resin artwork. |
| 6 | Apply a layer of UV adhesive on the surface and cure it under a UV lamp. |
Common Usage Issues




