Answer you should use an astm c920 silicone sealant suitable for granite.
What is best caulk for granite.
Trinova is our number one choice for the best granite sealer because of its outstanding performance.
Recaulking your granite countertop with 100 silicone caulk is the best way to make your granite countertop look like new again.
Typical uses include caulking.
Make sure that the sealant is compatible with your stone.
Poly caulk is not resistant.
However it may be that the mold mildew has grown into the caulk or moisture has gotten behind the caulk and mold is growing there.
A specialty caulk for outdoor use only.
Light colored granite and un polished stone such as some forms of travertine limestone onyx and marble will need to be sealed about every 1 3 years.
It will depend on the stone surface and the sealant.
The best exterior caulk for roofing construction and repairs since it can withstand extreme temperatures and creates a strong insulating and water tight seal.
Dow corning has a product called 795 or 790 that comes in a variety of colors and they say it is suitable for most stones.
Good for gutters siding and concrete.
Best for use with aluminum metal concrete mortar plastics rubber stone vinyl and exterior wood.
Counter tops behind sinks around showers and for other granite marble tile or porous stone applications.
The caulk may look intact but it can be hard to see small gaps or areas where the caulk is not sealed well.
Ceramic tile and stone consultants suggests astm c920 silicone sealant as the best silicone caulk for granite countertops.
And it can be painted with a brush or roller after just 30 minutes or spray painted immediately.
Don t forget to check the sealer on a small place out of view.
The best caulk to use on granite is 100 silicone caulk.
Your home may have latex caulk which is not as durable and is prone to becoming discolored with use.
Keep it on hand along with your best granite cleaner and use regularly.
And above all it can protect your granite countertop or any porous stone from unwanted stains for about 5 years which is impressive.
Supreme silicone granite can be exposed to water in as little as 3 hours and the caulk won t wash away.
Trinova granite sealer protector.
This is a good choice for sealing joints made of two different materials such as metal to concrete or wood to concrete.
Polyurethane this type of caulk is best suited for outdoor projects.
Laticrete has a product called latasil that comes in many colors.
Benefits to polyurethane caulk are that it is tear resistant will stick to almost any surface and is non corrosive as well.
