No sealing
The resin makes quartz non-porous, so homeowners never reseal it.
Quartz Countertops: Pros and Cons for Trade Buyers
Quartz is the easiest stone surface to live with: it needs no sealing and resists stains. Its limits are direct heat, strong sunlight and silica dust during cutting.
The short answer
Engineered quartz is made mostly of ground quartz bound with polymer resin. The resin makes quartz non-porous, so quartz countertops need no sealing and resist stains, and factory production gives consistent colour from slab to slab. The same resin makes quartz sensitive to direct high heat and long exposure to strong sunlight.
- Sealing
- Not needed
- Stains
- Resists everyday stains
- Heat
- Use trivets; resin can mark
- Outdoors
- Not for strong direct sun
Five reasons buyers choose quartz
Stain resistance
Wine, coffee and oil wipe off when cleaned in time.
Consistent colour
Factory production keeps the colour and vein style close from slab to slab.
Marble looks without marble upkeep
Calacatta and Statuario styles without etching from acids.
Large formats
Jumbo slabs cover long runs and islands with fewer seams.
Four limits to explain to your customers
Direct heat
Hot pans can mark the resin; customers should use trivets.
Strong sunlight
Long exposure to strong UV can change the colour; quartz is not recommended outdoors in direct sun.
Silica dust when cutting
Cutting engineered quartz releases crystalline silica dust; fabricators need wet cutting and dust control. Australia banned engineered stone from 1 July 2024.
Seams on very large pieces
Pieces longer than one slab need a seam; Jumbo slabs reduce how often that happens.
Quartz pros and cons in one table
| Question | Quartz | What to tell customers |
|---|---|---|
| Needs sealing? | No | Clean with mild soap and water |
| Resists stains? | Yes, when spills are wiped in time | Wipe strong dyes quickly |
| Heat resistant? | Limited; resin can mark | Always use a trivet |
| Outdoor use? | Not in strong direct sun | Choose another surface outdoors |
| Colour consistency | High; factory-made | Ask for slab photos for vein matching |
General guidance for engineered quartz, not test data for a specific product.
Stock many quartz colours from one 20GP container
Auro Quartz ships 199 Calacatta designs in Jumbo and Standard slabs from one 20GP container, with colours mixed, so a stockist can test the market without a full container of each colour.
See the Calacatta rangeQuartz slabs and cut-to-size tops from one factory
20GP
Container minimum
Auro Quartz ships from one 20GP container, with colours mixed in the same container.
199
Calacatta designs
Four catalogue collections, from fine grey veins to wide gold veins.
2
Slab formats
Jumbo 3200 × 1600 mm and Standard 3000 × 1400 mm, 20 mm or 30 mm thick.
Cut
To your drawing
Auro Quartz cuts the pieces before shipping and crates them for export.
Quartz pros and cons: questions
Anything else? Ask Auro Quartz »
Do quartz countertops need sealing?
No. Engineered quartz is non-porous because of the resin, so quartz countertops do not need sealing.
Can quartz countertops be used outdoors?
Quartz is not recommended outdoors in strong direct sunlight, because long UV exposure can change the colour of the resin.
Is quartz heat resistant?
Only partly. Direct high heat can mark the resin in quartz, so hot pans should go on a trivet.
Is engineered quartz banned anywhere?
Yes. Australia banned the use and import of engineered stone from 1 July 2024 because of silica dust risks to fabricators.
Related buying guides
Quartz vs quartzite
Engineered stone or natural stone: upkeep, heat, looks and supply.
Read the guide »Quartz vs granite
Which surface suits which kitchen, and what changes for a stockist.
Read the guide »Quartz vs marble
Why marble-look quartz outsells marble in busy kitchens.
Read the guide »Quartz thickness: 20 mm vs 30 mm
Which thickness each market expects, weight per slab and overhangs.
Read the guide »
Samples & quotes
Get a quote for quartz slabs or cut-to-size tops
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