Short answer: many kitchen cabinets need some form of abrasion before painting, but not every cabinet needs the same sanding approach. The right prep depends on grease buildup, the existing finish, the cabinet material, and whether the current coating is sound. In many kitchens, cleaning and degreasing come first, then the surface is scuff sanded or otherwise prepared so primer and topcoats can bond properly.
That distinction matters because homeowners often hear two overly simple versions of the same advice: “You always have to sand everything down” or “Use the right paint and skip sanding.” Neither is a reliable rule for cabinet work.
Why does cleaning and degreasing come before sanding?
Kitchen cabinets collect more than dust.
They often hold cooking oils, hand residue, food splatter, silicone-based cleaners, and general household grime. If that contamination stays on the surface, sanding can grind it into the existing finish instead of removing it cleanly. That makes adhesion less predictable and can create problems for both primer and finish coats.
This is why the 705 Painters cabinet service page already describes cabinet prep as a process that can include cleaning, degreasing, sanding or scuffing, masking, priming, and using a suitable coating system based on cabinet condition and project scope.
For homeowners, the practical takeaway is simple: sanding dirty cabinets is not proper prep. A clean surface gives the next prep steps a better chance to work.
Do glossy cabinets usually need some kind of abrasion?
Often, yes.
Many older kitchen cabinets have a glossy factory finish, lacquered appearance, stained clear coat, or a previously painted sheen that is simply too slick to paint over casually. Even when that finish looks intact, it may still need abrasion or another approved prep method so the new coating system has a better surface to grip.
That does not mean every cabinet needs aggressive stripping.
In many cases, the goal is not removing every bit of the old finish. The goal is preparing the existing surface properly for adhesion. That is a different job.
Is scuff sanding the same as fully stripping cabinets?
No.
Scuff sanding is usually about dulling the existing sheen, smoothing minor surface issues, and helping the primer or coating system bond more reliably. It is a preparation step.
Aggressive stripping is a much bigger process. It may be necessary when:
- the existing coating is failing;
- multiple old paint layers are unstable;
- there is severe texture buildup;
- there is peeling, chipping, or delamination;
- the substrate needs more invasive correction before refinishing.
Most homeowners comparing cabinet painting options are not actually deciding between “sand nothing” and “strip to bare wood.” The real choice is usually between the correct level of preparation for the surface in front of you.
Why is scuff sanding often enough on sound cabinets?
Because a lot of cabinet repaint projects start with cabinets that are structurally fine but visually dated.
If the boxes, doors, and drawer fronts are sound and the existing coating is still bonded well, the prep plan may only need cleaning, deglossing or scuff sanding, spot repairs where needed, and the correct primer before the finish system is applied.
That is especially true when the existing issue is cosmetic:
- outdated colour;
- visible wear around handles;
- minor sheen inconsistency;
- small chips or marks;
- a kitchen that feels tired rather than broken.
In that situation, scuff sanding is part of a broader refinishing system, not a demolition step.
If cabinets are sanded, do they still need primer?
Often, yes.
Sanding helps with surface profile. Primer helps with bonding, sealing, and creating a suitable base for the finish coats. Those are related jobs, but they are not the same job.
Depending on the cabinet material and existing finish, primer may help with:
- adhesion over slick or previously finished surfaces;
- sealing repaired or sanded areas;
- evening out absorption;
- separating the new finish from the old coating;
- supporting the performance of the cabinet coating system.
Homeowners sometimes assume sanding is the “real” prep and primer is optional. In cabinet work, that is usually too simplistic. The right prep system is what matters.
Why doesn’t sanding alone guarantee a durable cabinet finish?
Because durability depends on the whole system, not one step.
A cabinet finish can still fail if:
- grease or residue was not removed properly;
- the wrong primer or no primer was used;
- the existing finish was already failing underneath;
- the substrate has moisture damage or swelling;
- the coating system is not appropriate for the surface;
- the finish does not get the right cure conditions after application.
This is one reason homeowners should be careful with advice that treats cabinet painting like wall painting. Cabinets are handled constantly. Adhesion, curing, impact resistance, and cleaning habits all matter after the sanding step is over.
If you are also comparing whether a cabinet finish will actually hold up over time, How Long Do Professionally Painted Kitchen Cabinets Last? explains the bigger durability picture.
When does cabinet material change the sanding plan?
The substrate matters a lot.
Solid wood cabinets
Solid wood is often a good refinishing candidate when the cabinets are sound. The prep may still vary depending on whether the surface is stained, clear coated, previously painted, dented, or worn around edges.
MDF cabinet doors
MDF is common in painted cabinetry, but edges and damaged areas need careful handling. If the surface is swollen or the fibre is breaking down, sanding alone will not solve the problem.
Previously painted cabinets
These often need a closer look because the question is not only “Can we sand this?” but also “Is the existing paint still adhering properly?” If the older coating is unstable, the prep plan may need more than a standard scuff sand.
Laminate, melamine, or thermofoil-style surfaces
Some manufactured surfaces are more demanding than wood. Adhesion becomes the central issue, and not every surface with a hard, slick face should be treated like a simple painted wood cabinet. In those cases, the prep and primer plan matters even more.
If you want the broader substrate breakdown, Can All Kitchen Cabinets Be Painted? goes deeper on where refinishing is reasonable and where it becomes risky.
When does cabinet condition change the prep plan?
Condition can matter more than material.
Prep often changes when cabinets have:
- peeling or chipping existing finish;
- water damage under sinks or near dishwashers;
- swollen door edges or panel movement;
- grease buildup that is heavier than expected;
- repairs from old hardware holes;
- impact damage, dents, or loose joints.
At that point, the right question is no longer just “Do these need sanding?” It becomes “What preparation does this cabinet system need before refinishing makes sense?”
Some cabinets are good candidates for a controlled prep-focused refinishing process. Others need repairs, refacing, or replacement before paint becomes a good investment.
So do kitchen cabinets need to be sanded before painting?
Many do, but not all in the same way.
A practical homeowner answer is:
- cleaning and degreasing should come first;
- glossy or slick finishes usually need some form of abrasion or equivalent prep;
- scuff sanding is often different from full stripping;
- primer is commonly still part of the system;
- sanding alone does not guarantee a durable result;
- cabinet material and coating condition can change the entire plan.
If you are comparing whether your own kitchen is a good refinishing candidate, review the prep-focused approach on the cabinet painting service page, explore the broader Barrie painting services if the project may include more than cabinets, or contact 705 Painters to have the cabinet surfaces reviewed in person before work begins.