Do Not Let Refinish Approval Become a Blanket Slab Approval
This is the most important approval boundary in the article.
Approving one refinished sample may establish that a proposed surface process produces an acceptable result on the material reviewed.
It does not automatically prove that:
every slab will look identical;
every mineral zone will respond identically;
every large component will have identical sheen;
every previously treated area will respond the same way;
every edge will match the face automatically; or
the result will appear identical under every site lighting condition.
Natural Quartzite remains slab-specific.
The approval should therefore say what it actually releases.
Write the Approval Boundary Before Bulk Refinishing
REFINISH APPROVAL RECORD
□ Original reference ID recorded
□ Refinished sample ID recorded
□ Material / slab relationship recorded
□ Proposed finish process recorded
□ Samples reviewed clean and dry
□ Same lighting and viewing conditions used
□ Overall sheen compared
□ Color depth compared
□ Texture compared
□ Processing marks reviewed
□ Face / edge relationship checked where relevant
□ Larger-area review completed if required
□ Photographs retained
□ 承認者を明記済み
□ Pieces / slabs covered by approval identified
□ Re-review trigger defined
When Should the Finish Be Reviewed Again?
A previous sample approval should be reconsidered when a meaningful variable changes.
例としては、
a different slab group;
a visibly different mineral zone;
a different finishing sequence;
different equipment or process where relevant;
a change from face processing to edge processing;
a change from small sample to large panel;
a previously treated or repaired area;
a different specified finish; or
another condition outside the recorded approval scope.
The goal is not to create unnecessary approvals.
It is to avoid extending one controlled sample result to materially different conditions without review.
What Should the Supplier Provide for a Refinish Review?
For the confirmed stone and fabrication scope, useful evidence may include:
quartzite-refinish-sample-final-approval-record
original reference sample identification;
refinished sample identification;
actual slab or piece reference;
finish description;
record of the proposed refinishing process;
side-by-side photographs;
reflected-light photographs;
close surface photographs;
relevant edge photographs;
larger-area review where required; and
written approval and release scope.
The project team should separately define any contractual appearance tolerance, instrument-based requirement, site acceptance procedure, maintenance requirement, or specialist technical criterion that applies.
よくある質問
1. How should I compare a refinished Quartzite sample with the original finish?
Final Finish-Matching RuleDo not approve a refinished Quartzite surface because it “looks close” in one photograph. Keep the comparison controlled: Original Reference → Refinished Sample → Same Surface Condition → Same Lighting → Sheen → Color Depth → Texture → Scale-Up Check → Written Approval → Defined Production Scope.
For project-based Natural Quartzite fabrication, HRST STONE can coordinate actual slab and sample references, finish-sample preparation, CAD/shop drawings, fabrication records, QC photographs, larger-area finish review, piece identification, packing, and export documentation for the confirmed stone scope. Send Josh the material name, original finish reference, proposed finish change, dimensions, quantities, drawings, visible surfaces, and delivery destination before bulk refinishing or fabrication release.
Hi, I am the author of this article. I have been working in the field of Natural Stone for more than 15 years. If you need customized Natural Stone services, please feel free to contact me.
