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Q: 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!

Q: 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.

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

Apply after the concrete sealer.

Q: 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 cracks like a pro—durability meets effortless style!

MADE IN THE USA - Quality you can trust, supporting local manufacturing standards.
FLEXIBLE RESILIENT - Designed to move with cracks, preventing tears and extending lifespan.
SELF LEVELING TEXTURE - No extra tools needed—sealant smooths itself for a seamless finish.
EFFORTLESS APPLICATION - Compact cartridge fits standard caulking guns for quick, mess-free use.
LONG LASTING WATERPROOF SEAL - Premium polyurethane formula ensures superior protection against water damage.

The Sikaflex Crack Flex Sealant is a premium one-component polyurethane sealant designed for concrete and cement surfaces. It offers waterproof, flexible, and long-lasting protection with a self-leveling texture that requires no additional tools. Ideal for driveways, walkways, balconies, and stairs, this durable sealant is made in the USA and fits standard caulking guns for easy application.

Have a Question? See What Others Asked

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

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

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

How soon after application can it be driven on?

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TrustScore 4.5 | 7,300+ reviews

Rajesh P.

Customer service was outstanding when I had questions about the product.

2 days ago

Khalid Z.

Great experience from order to delivery. Highly recommended!

1 week ago

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Trustpilot

TrustScore 4.5 | 7,300+ reviews

Vikram D.

The MOLLE sheath is of exceptional quality. Very happy with my purchase.

2 weeks ago

Anjali K.

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

1 month ago

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Brand	SIKA
Model Number	427706
Product Dimensions	29.21 x 5.08 x 29.21 cm; 437.1 g
Color	gray
Name List for Name Plates	クラックフレックスシーラント
Material	Polyurethane
Included Components	Sealant
Are Batteries Included	No
Item Weight	437 g

Crack Flex Sealant, 10.1-Oz. -515306

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