https://olivemill.com/wp-content/uploads/granite-countertop-water-absorption-test-featured-image.jpg 250 750 Andy Graves https://olivemill.com/wp-content/uploads/logo_olivemill_299x100.png Andy Graves2021-12-09 19:46:152022-03-23 14:58:53Is Granite Porous
Is Granite Porous
Lemon Test – The lemon test is to determine the ability of your granite to resist etching. Follow the steps below:
- Place a wedge of lemon or lime, cut side down, on the sample overnight.
- Wipe the sample in the morning and hold it at an angle to the light.
- Check for a rough spot where the lemon was placed.
- Etching will appear dull and rough.
Etches normally occur where calcium or calcite is present in the make-up of the stone. If your sample reacts to the lemon wedge, we DO NOT recommend this for your kitchen.
Water Absorption Test – Test the suitability of your granite to resist water absorption. The tighter the grain the less absorption.
Follow these steps:
- Place a few small drops of water on the sample.
- Let stand for about 15 minutes.
- Wipe excess water.
If the granite sample absorbed the water as soon as you put it on, DO NOT use this granite. A quality sealer would help prevent some absorption but would require constant maintenance.
If there is still a bit of water left on the surface, it will be suitable for your kitchen. We recommend a sealer for all granite.