Are the fibers AR fiberglass (alkali resistant) ?

I made hypertufa pots with the fibers in the mixture since they are glass fibersI believe they are alkali resistant

Will this work with self leveling cement?

First if your using self leveling cement you most likely are and should be covering it with tile or some type flooring. It should not really need the fiberglass fibers for strength since it is getting covered up. It is possible it will work but don't use a heavy amount. I would try a small test spot on a piece of plywood or somewhere. See what other answers you get back also, or ask the seller too

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Fiberglass for Cement Mortar Concrete Reinforcement (19MM)-1lb | 6/9/19mm length options, 1/2/4 lb weight options, for anti-seepage and anti-cracking cement mix for building walls garden

Product ID: 373253480

Details

Brand
UPTTHOW
Color
White
Item Diameter
0.75 inches
Material
Fiberglass
Shape
Fluffy

💧Waterproof & anti-seepage cement mix

🧱1 lb pack covers 1 cubic yard concrete

🛠️19mm fiber length for optimal reinforcement

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Description

🧱 Reinforce your build, resist the cracks—build smarter, last longer!

EASY INTEGRATION - Simply mix with sand and cement; stir 30-60 seconds longer for superior bonding.
CRACKPROOF CONFIDENCE - Fiberglass fibers disperse evenly to prevent fine cracks, boosting mortar toughness.
CUSTOMIZABLE MIX RATIOS - Choose from 6, 9, or 19mm lengths and 1/2/4 lb weights to tailor reinforcement to your project.
IMPACT SEISMIC SHIELD - High-strength filaments form a resilient net, improving impact resistance and durability.
WATER RESISTANT WALL ARMOR - Dense fiber network enhances cement impermeability—perfect for basements and exterior walls.

UPTTHOW Fiberglass Reinforcement (19mm, 1lb) is a commercial-grade additive designed to enhance cement mortar by preventing cracks, improving waterproofing, and boosting impact resistance. Available in multiple fiber lengths and weights, it integrates seamlessly into concrete mixes for durable walls and garden structures, ideal for wet or high-impact environments.

Specifications

ASIN	B099NDS6V2
Best Sellers Rank	#28,574 in Tools & Home Improvement ( See Top 100 in Tools & Home Improvement ) #977 in Building Materials
Brand Name	UPTTHOW
Color	White
Customer Reviews	4.7 4.7 out of 5 stars (382)
Grade Rating	Commercial
Item Diameter	0.75 inches
Item Form	Roll
Item Shape	Fluffy
Item Thickness	0.75 inches
Item Weight	16 ounces
Manufacturer	UPTTHOW
Material	Fiberglass
Model Number	Fiberglass 19mm-1lb
Number of Items	1
Part Number	Fiberglass 19mm-1lb
Unit Count	16 Ounce

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€ 57.32

Duties & taxes included

In stock

Sold byAmazon CroatiaDelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

Buyer Protection · Full refund if your order doesn't arrive as described.

Desertcart purchases this item on your behalf and handles shipping, customs, and support to Croatia.

Secure transaction

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TrustScore 4.5 | 7,300+ reviews

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