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Sika Postfix - Fence Post Mix - Light Green - Mix-in-The-Bag Expanding Foam for Supporting Non-Structural Posts - 978 ml

Sika Postfix - Fence Post Mix - Light Green - Mix-in-The-Bag Expanding Foam for Supporting Non-Structural Posts - 978 ml

Q: Am i missing something or is this way more expensive than concrete? I know concrete can be a pain, but this stuff looks to be 4 or 5 times the price.

Yes, this is way to expensive. Home Depot and Lowes in Texas sells it for 9.88 a bag

Q: Can I mix in a container other than the bag to use smaller amounts at a time?

This product appears to be a typical two-part expanding polyurethane foam. These are not particularly unusual products. They are usually not air-activated. You mix the two chemicals together in equal parts and then fairly quickly the reaction takes place and the liquid expands into a rigid foam. You could probably extract equal portions of the two chemicals from the two pouches, but really since you're here on Amazon just search for expanding polyurethane foam and you'll find the chemicals in various quantities where you won't have to deal breaking into the bag and then storing the ruptured bag(s).

Q: Can this be used to set Deck Posts?

Its advertised to do so but I have not used mine...waiting on spring

4.5/5

Product ID: 58061508

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Details

Material
Polyurethane
Color
Green
Brand
SIKA
Product Dimensions
8.5"L x 9.8"W
Assembly Required
No

🌿Natural green blend for seamless landscaping

⏱️Fast-setting in minutes

🌡️Works from -22°F to 130°F

Description

🌟 Secure your posts fast, strong, and stylishly green!

RAPID POST SUPPORT - Sets fully within minutes so your project stays on schedule
VERSATILE APPLICATION - Ideal for fence, mailbox, lamp, and signage posts—professional-grade reliability
WEATHERPROOF DURABILITY - Withstands extreme temperatures from freezing cold to scorching heat
EFFORTLESS MIX IN BAG PREP - No mess, no fuss—just stir and apply in seconds
SEAMLESS NATURAL CAMOUFLAGE - Light green foam blends perfectly with grass and garden surroundings

Sika Postfix Fence Post Mix is a fast-setting, polyurethane expanding foam designed to support and seal non-structural posts. Its light green color blends naturally with outdoor environments, while its weather-resistant formula endures temperatures from -22°F to 130°F. The mix-in-the-bag system ensures quick, mess-free preparation, making it the go-to solution for durable, professional-grade post installation.

Specifications

Material	Polyurethane
Color	Green
Brand	SIKA
Product Dimensions	8.5"L x 9.8"W
Assembly Required	No
Number of Pieces	1
Unit Count	1.0 Count
UPC	815202002611
Global Trade Identification Number	00815202002611
Manufacturer	Sika Corporation
Part Number	Sika - 483503
Item Weight	1 pounds
Item model number	Sika - 483503
Is Discontinued By Manufacturer	No
Item Package Quantity	1
Included Components	Sika - 483503
Batteries Included?	No
Batteries Required?	No
Warranty Description	Warranty

Have a Question? See What Others Asked

Am i missing something or is this way more expensive than concrete? I know concrete can be a pain, but this stuff looks to be 4 or 5 times the price.

Can I mix in a container other than the bag to use smaller amounts at a time?

Can this be used to set Deck Posts?

Is this strong enough for deck posts that only come up 2 feet? What is the expansion volume for a bag?

Trustpilot

TrustScore 4.5 | 7,300+ reviews

Ali H.

Fast shipping and excellent packaging. The Leatherman tool feels very premium and sturdy.

1 day ago

Anjali K.

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

1 month ago

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E£ 4585

Duties & taxes incl.

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Trustpilot

TrustScore 4.5 | 7,300+ reviews

Reema J.

Perfect platform for hard-to-find items. Delivery was prompt.

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Fantastic and great service. Shipping was faster than expected.

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