Can I Sand and Retouch a Resin Coating After It’s Cured?

When Sanding Is Possible

Certain resins, such as Vertical Glass, are suitable for light sanding or refinishing after they have fully cured. This feature is ideal if you wish to smooth out small surface flaws, correct application marks, or refresh a slightly dulled area. Always wait the recommended minimum curing time—typically at least 48 hours—before attempting any surface refinishing. Trying to sand too early may distort the finish or cause unwanted marks.

How to Sand and Retouch Resin Finishes

• Begin with very fine sandpaper (of at least 800 grit), gently smoothing only the affected areas. If tackling a glossy finish, work gradually and dampen the sandpaper for best results.
• Thoroughly clean away sanding residue with a tack cloth or microfibre cloth before proceeding.
• After sanding, you may reapply a fresh thin layer of compatible resin or a clear top coat to restore evenness and shine. Always consult the manufacturer’s guidelines for recoating and check the compatibility if using a different product.

When This Matters

Retouching and sanding prove useful for decorative wall installations and feature surfaces where an immaculate finish is important. This approach is a practical way to deal with light marks, surface bubbles, or mild wear on indoor resin coatings applied to tiles, cement, or wood.