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 smart, stay flawless — never let cracks steal your curb appeal!

PAINT READY FINISH - Compatible with water, oil, and rubber-based paints for customized aesthetics.
VERSATILE APPLICATION - Ideal for horizontal cracks up to 1 inch wide on driveways, sidewalks, decks, and more.
ALL WEATHER DURABILITY - Resists aging, weathering, and moisture to keep surfaces sealed year-round.
FLEXIBLE CRACK DEFENSE - Elastic polyurethane formula adapts to crack shifts, preventing re-cracking.
SEAMLESS SURFACE INTEGRATION - Textured, self-leveling sealant blends flawlessly with concrete for a professional look.

Sikaflex Crack Flex Sealant is a premium, single-component polyurethane sealant designed for horizontal cracks up to 1 inch wide. Featuring elastic technology and a self-leveling, textured finish, it ensures long-lasting, waterproof protection that moves with your concrete surfaces. Perfect for driveways, sidewalks, decks, and more, it resists weathering and can be painted to match any design.

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The product quality is outstanding. Exactly what I needed for my work.

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Product Dimensions	29.21 x 5.08 x 29.21 cm; 285.76 g
Part number	427706
Material type	Polyurethane
Department	Unisex-Adult
Manufacturer	Sika Corporation
Item model number	427706
ASIN	B00NO70BKA

Sikaflex Crack Flex Sealant, Gray, High performance, textured polyurethane sealant, self-leveling, sealant for sealing horizontal cracks, 10,1 fl. Oz

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