3 Key Advantages of 3D Printing Materials That Reduce Post-Processing Work — NextShapes Red Wax Resin Wins Over Ordinary High-Precision Resins

     2026.04.14                          NextShapes,Hight Resolution 12K Pro,3D Printing                ＜1 minute                                                                 

One morning at work, Mr. Wang contacted us: “Do you have any 3D resin that can reduce post-processing work?”

Mr. Wang is a procurement manager at a prototype modeling company with three years of experience. His company recently received an order for rapid prototyping of precision structural parts using LCD 3D printing technology. The client demanded high surface quality and dimensional accuracy, specifically emphasizing that post-processing marks should not be noticeable and assembly gaps must be controlled within 0.1 mm.

The engineers initially recommended a certain imported high-precision 3D resin. However, that material required extensive support structures during 3D printing, and removing them, sanding, and filling could take up to two hours per prototype. Additionally, the imported resin had long lead times and high costs, which the company could not afford.

Mr. Wang then tried a local 3D print material supplier, who confidently claimed to reduce post-processing work. One month later, the production supervisor reported that the support points left severe residues, the surface still showed white marks after sanding, and some thin-walled parts had dimensional deviations, requiring redesign. Three months later, a batch of prototypes returned from the client due to poor surface roughness. The original supplier explained: “This 3D resin has a high shrinkage rate, and we are not experts in support design.” Frustrated, Mr. Wang had to keep looking for a new material supplier.

His boss warned, “Labor costs for post-processing are already 20% over budget. If we can’t find the right material, this order will be a loss.”

While searching online for “low-support, high-precision 3D printing resin,” Mr. Wang discovered NextShapes. He noted that NextShapes had been supplying ICD 3D printing technology partners and a well-known DLP 3D printer manufacturer for three consecutive years, so he left an inquiry: “Ordinary 3D resin requires too much post-processing. Can your NextShapes Red Wax Resin really reduce post-processing work? I need at least a 50% reduction in post-processing time and a surface that requires no secondary treatment.”

It was clear Mr. Wang had already been exhausted by post-processing issues.

Based on the sample 3D model, printer specifications (a domestic 12K DLP printer), and post-processing workflow he provided, NextShapes engineers found that the Hight Resolution 12K Pro version of the Red Wax Resin was very similar to a resin they supplied six months ago to a precision mold company in Ningbo. That company printed jewelry wax models using 3D printed methods and required easy-to-remove supports and surfaces that could be polished directly without sanding. NextShapes customized the formula and achieved “supports that fall off with a touch, surface roughness Ra ≤ 0.8 μm.”

Excited by this case, Mr. Wang requested that NextShapes customize Red Wax Resin to match the imported high-precision 3D resin. I told him: “NextShapes doesn’t chase the ‘most advanced’ material parameters. But in terms of reducing post-processing work, it must match or even surpass imported resins.” NextShapes then optimized the resin in three key areas.

Forty-five days later, a sample of the Hight Resolution 12K Pro Red Wax Resin arrived at Mr. Wang’s company. Three months later, he emailed:
“Yesterday, production reported that prototypes printed with NextShapes Red Wax required about 40% fewer supports. Support points come off easily, and any residual marks can be wiped away with a few strokes of sandpaper. The surface requires almost no sanding and can be painted directly. Post-processing time per piece dropped from 2 hours to under 40 minutes. If there are no issues in the next month, we’ll designate this resin as our standard material.”

The three key advantages of NextShapes Red Wax Resin that allow it to dramatically reduce post-processing are:

1.High-Precision Printing Reduces Dimensional Corrections

Ordinary 3D resin often shrinks inconsistently when printing thin walls or fine features, leading to misaligned holes or clips that require manual correction. NextShapes Red Wax Resin uses nano-scale photopolymer blends to achieve ±0.05 mm printing accuracy, faithfully reproducing 0.2 mm details and reducing post-print model modifications from the start. 

2.Low Dependence on Supports, Optimized Contact Points
By adjusting the resin’s cross-link density and base adhesion, NextShapes ensures better self-support for overhangs during 3D printing. Combined with recommended slicing parameters, this reduces support structures by 30–50%. Support contact points are designed to break easily, leaving minimal residue and eliminating the need for repeated filing. 

3.Ultra-Smooth Surface, No Sanding or Polishing Needed
Ordinary 3D resin often produces layer lines or matte surfaces that require multiple sanding steps before painting or assembly. NextShapes Red Wax Resin contains leveling agents that create a semi-gloss surface straight off the build platform, with surface roughness Ra ≤ 0.8 μm. Most applications can be assembled or painted directly, cutting polishing time by over 70%. 

NextShapes Red Wax Resin Hight Resolution 12K Pro — three key advantages, at least 50% less post-processing work with 3D printing. It’s worth giving it a try!