Engineered quartz
Ground quartz bound in resin. Non-porous and acid-tolerant where marble is not — but the resin is the weak point, and the products sold for real stone are wrong for it.
What not to do
Sodium hydroxide is unsafe on Engineered quartz
Unsafe
Do not do this. The risk is established, and it is described below.
Oven cleaner is named in the manufacturer's prohibited list, and caustic soda is what makes oven cleaner work. The damage is to the resin binder rather than to the quartz.
Precautions
- Rinse thoroughly afterwards
- Check the manufacturer's instructions
Evidence
Strongly supported
Sources
Care and Maintenance: Caesarstone Surfaces
Caesarstone Ltd. · Manufacturer documentation
Relied on for: That oven and grill cleaners must not be used on the surface, and that chemicals of high pH are to be avoided. (states this directly)
Precautions
- Check the manufacturer's instructions
- Rinse thoroughly afterwards
- Test on an inconspicuous area first
In detail
Engineered quartz is crushed natural quartz held in a polymer resin, and almost every practical difference from natural stone comes from the resin rather than the mineral. Quartz is hard and chemically indifferent; the binder is neither, so the failure mode inverts. Marble is destroyed by acid and tolerates a stone soap; engineered quartz shrugs off the acid that would etch marble and is damaged instead by what attacks polymers. The manufacturer's prohibited list is accordingly solvents and extremes: oven and grill cleaners, dishwasher detergent, floor strippers, oil soaps, paint removers and strippers, anything containing trichloroethane or methylene chloride, and chemicals of high or low pH. The trap worth knowing is the one most readers walk into — the guidance explicitly warns against wipes and cleaners sold for granite, marble and other natural stones. A worktop that looks like stone, is sold in the stone aisle and fitted by a stone mason is not stone, and the product bought to care for it is formulated for a material it is not made of. Routine cleaning is warm soapy water, hot pans belong on a trivet, and anything harsh that reaches the surface is rinsed off immediately.
Properties
Sensitivity
- Acids
- Not known
- Alkalis
- Sensitive
- Chlorine bleach
- Not known
- Heat
- Sensitive
- Abrasion
- Not known
- Porous
- Not applicable
“Not known” means nobody has established this, not that the material is unaffected.
What works
Detergent is safe on, in specific conditions, Engineered quartz
Safe only in specific conditions
This is only appropriate within specific limits. Outside those limits, no claim is made.
Only within these limits:
- Warm soapy water for routine cleaning
- Not oven or grill cleaners, dishwasher detergent, floor strippers, oil soaps, paint removers or anything containing trichloroethane or methylene chloride
- Avoid high and low pH — strong acids and alkalis
- If a damaging product reaches the surface, rinse immediately with plenty of water
Also excluded, and this catches people out: wipes and cleaners sold specifically for granite, marble and other natural stones are not for engineered quartz.
Precautions
- Check the manufacturer's instructions
- Rinse thoroughly afterwards
Evidence
Supported
Sources
Care and Maintenance: Caesarstone Surfaces
Caesarstone Ltd. · Manufacturer documentation
Relied on for: That routine cleaning is warm soapy water, that a long list of products including oven cleaners, dishwasher detergent and stone-specific cleaners is prohibited, that high and low pH should be avoided, and that a damaging product reaching the surface should be rinsed immediately with plenty of water. (states this directly)
Related
- Engineered quartz is commonly affected by Grease
- Engineered quartz is commonly affected by Tomato stain
- Engineered quartz is commonly affected by Coffee
- Engineered quartz is commonly affected by Grease
Hacks and claims involving this
- Using a stone cleaner on a quartz worktop Does not work
- Oven cleaner for a stubborn worktop mark Does not work
Sources for this page
Sources
Care and Maintenance: Caesarstone Surfaces
Caesarstone Ltd. · Manufacturer documentation
Relied on for: That oven and grill cleaners, dishwasher detergent, floor strippers, oil soaps, paint strippers and products containing trichloroethane or methylene chloride must not be used, that high and low pH chemicals are to be avoided, that cleaners sold for granite, marble and other natural stones are not appropriate, and that contact is rinsed off immediately. (states this directly)