After application, is this sandable? Also, if yes, is there an ideal period of “curing” before sanding?

Yes, you can sand once fully cured. It is recommended to wait 3 to 5 days prior to sanding. Thank you for choosing Sika!

How long does it take to dry a one inch gas about one inch deep 10 '" long?

Two hours to dry. Twelve to twenty four hours to cure.

Should I apply this before or after applying a (water based siloxane) concrete sealer?

Apply after the concrete sealer.

How soon after application can it be driven on?

Hi Kelly. We recommend waiting 3 to 5 days for the sealant to fully cure before opening to vehicular traffic. Thank you for choosing Sika!

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🛡️ Seal the deal with lasting strength and flawless finish!

FLEXIBLE RESILIENT - Designed to move with your surfaces, preventing cracks from tearing or reopening.
SELF LEVELING TEXTURE - No extra tools needed—sealant smooths itself for a seamless, professional finish.
EFFORTLESS APPLICATION - Compact cartridge fits standard caulking guns for quick, mess-free use.
MADE IN THE USA QUALITY - Trusted American manufacturing guarantees reliability and performance you can count on.
ULTIMATE WATERPROOF SHIELD - Premium polyurethane formula ensures durable, water-tight sealing on all concrete surfaces.

Sikaflex Crack Flex Sealant is a premium one-component polyurethane sealant designed for durable, waterproof protection of concrete cracks and gaps. Its self-leveling, flexible formula ensures easy application and long-lasting resilience, making it ideal for driveways, walkways, balconies, and stairs. Made in the USA, this 10.1-oz cartridge fits standard caulking guns for professional results without extra tools.

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Brand	SIKA
Model Number	427706
Product Dimensions	29.21 x 5.08 x 29.21 cm; 436.9 g
Color	gray
Name List for Name Plates	Crack Flex Sealant
Material	Polyurethane
Included Components	Sealant
Are Batteries Included	No
Item Weight	437 g

Crack Flex Sealant, 10.1-Oz. -515306

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