How to distinguish between true and false quartz stone cabinet countertops

Quartz stone countertops are a modern, artificial material made from crushed quartz and resin. With so many options available on the market, it's crucial to choose a brand that offers good value and meets your needs. More importantly, knowing how to assess the quality of quartz stone countertops during the purchasing process can help you avoid poor-quality products.

1. Acid Test

Some manufacturers may use calcium carbonate in their quartz countertops to cut costs. This material reacts with acids like hydrochloric acid. To test, apply a small amount of diluted acid to a sample. If bubbles form or the surface becomes etched, it likely contains calcium carbonate, which can degrade over time. A high-quality quartz countertop should remain unaffected.

2. Stain Test

High-quality quartz stone has a dense, fine structure, which means it has low water absorption and is resistant to staining. Lower-quality imitations often have a porous structure, making them prone to staining. To check, place some soy sauce or oil on the surface. If the stain penetrates within a day, it may be an inferior product. Quality quartz should not show any signs of staining.

3. Scratch Resistance Test

Quartz countertops are known for their hardness, as they are mainly composed of silica. Most genuine quartz countertops contain around 93% quartz, making them highly durable and resistant to scratches. However, fake or low-quality versions often have higher resin content, which makes them softer and more prone to damage. You can use a knife to gently scratch the surfaceâ€”genuine quartz should show little to no damage.

4. Heat Resistance Test

Quartz countertops are generally heat-resistant, but lower-quality products with excessive resin may not perform well under high temperatures. To test, briefly expose a small sample to a lighter flame. If it melts, burns, or leaves a mark, itâ€™s likely not real quartz. High-quality quartz should withstand heat without showing any visible damage.

When shopping for quartz countertops, always ask for samples and perform these simple tests before making a purchase. These methods can help you identify the true quality of the product and ensure you get the best value for your money.

Auxiliary Agent For Concrete Retarder

Classification by structure:

(1) Sugar: sugar calcium, gluconate, etc

(2) Citric acid, tartaric acid and their salts

(3) Zinc salt and phosphate

(4) lignosulfonate

Hardening effect

(1) Influence on strength, excessive incorporation will cause the concrete to remain unsolidified for 24 hours or even 72 hours, thus affecting the need for early strength of concrete and delaying the construction progress. No obvious effect was found on the concrete of suitable age.

(2) The effect on contraction, the appropriate use of the contraction has no significant effect. Excessive use will cause the top concrete to dry and shrink due to excessive water evaporation and shrinkage cracks.

(3) The effect on frost resistance durability is similar to that of concrete without adding retarder. [1]

Detection index

Increased turnover: 8

Initial setting time difference: +60~+120

Compressive strength ratio 7 days: 120

Compressive strength ratio 28 days: 120

Softening coefficient: 0.55

Auxiliary Agent For Concrete Retarder,retarding agent,set Retarder

Shanghai Hongyun New Construction Materials Co., Ltd , https://www.hongyunpce.com